Exchange 2010 DAG and backup options/recommendations.
We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076
Re: Exchange 2010 DAG and backup options/recommendations.
Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) < pfeff...@ucmail.uc.edu> wrote: > We are going to be moving to Exchange 2010. Basically we will have > 14,000 users and will allow users to go up to 4 gig mailboxes. We will have > 4 backends distributed between 2 on-site buildings for redundancy > (power/network). We will also be deploying a DAG configuration with 2 > copies per database. We are talking a ton of storage and the question > keeps arising about backups. I’ve heard with the DAG deployment, a backup > system isn’t really required because of the database replication, but my > mind keeps going back to the possibility of database corruption. Total data > to be backed up could be 192 terabytes, so it’s a large amount of data. I > was wondering what other large shops are using for that type of data. > Comments on backup strategies for 2010? > > > > *Pete Pfefferkorn* > > *University of Cincinnati* > > *Email Services-Systems Engineer* > > *pete.pfefferk...@uc.edu* > > *(513)556-9076* > > * * > > > -- smsadm
RE: Exchange 2010 DAG and backup options/recommendations.
We were looking at going with Dells Powervault MD3200's andMD1200's. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076 From: sms adm [mailto:sms...@gmail.com] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm
RE: Exchange 2010 DAG and backup options/recommendations.
Check out NetApp ~JasonG > -Original Message- > From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] > Sent: Wednesday, July 28, 2010 16:30 > To: MS-Exchange Admin Issues > Subject: RE: Exchange 2010 DAG and backup options/recommendations. > > We were looking at going with Dells Powervault MD3200's andMD1200's. But > we are open to other vendors/options. > > > > Pete Pfefferkorn > > University of Cincinnati > > Email Services-Systems Engineer > > pete.pfefferk...@uc.edu > > (513)556-9076 > > > > > > From: sms adm [mailto:sms...@gmail.com] > Sent: Wednesday, July 28, 2010 4:10 PM > To: MS-Exchange Admin Issues > Subject: Re: Exchange 2010 DAG and backup options/recommendations. > > > > Who is your storage provider? > I just attended an EMC presentation at the Netherlands Hotel in downtown > Cinci for 2010, DAGs, and storage. > Your storage provider SHOULD have a solution. > > > > On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) > wrote: > > We are going to be moving to Exchange 2010. Basically we will have > 14,000 users and will allow users to go up to 4 gig mailboxes. We will > have 4 backends distributed between 2 on-site buildings for redundancy > (power/network). We will also be deploying a DAG configuration with 2 > copies per database. We are talking a ton of storage and the question > keeps arising about backups. I've heard with the DAG deployment, a > backup system isn't really required because of the database replication, > but my mind keeps going back to the possibility of database corruption. > Total data to be backed up could be 192 terabytes, so it's a large amount > of data. I was wondering what other large shops are using for that type > of data. Comments on backup strategies for 2010? > > > > Pete Pfefferkorn > > University of Cincinnati > > Email Services-Systems Engineer > > pete.pfefferk...@uc.edu > > (513)556-9076 > > > > > > > > > -- > smsadm
Re: Exchange 2010 DAG and backup options/recommendations.
NetApp is outstanding. Whomever you choose should have a backup solution for you also. On Wed, Jul 28, 2010 at 4:33 PM, Jason Gurtz wrote: > Check out NetApp > > ~JasonG > > > -Original Message- > > From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] > > Sent: Wednesday, July 28, 2010 16:30 > > To: MS-Exchange Admin Issues > > Subject: RE: Exchange 2010 DAG and backup options/recommendations. > > > > We were looking at going with Dells Powervault MD3200's andMD1200's. > But > > we are open to other vendors/options. > > > > > > > > Pete Pfefferkorn > > > > University of Cincinnati > > > > Email Services-Systems Engineer > > > > pete.pfefferk...@uc.edu > > > > (513)556-9076 > > > > > > > > > > > > From: sms adm [mailto:sms...@gmail.com] > > Sent: Wednesday, July 28, 2010 4:10 PM > > To: MS-Exchange Admin Issues > > Subject: Re: Exchange 2010 DAG and backup options/recommendations. > > > > > > > > Who is your storage provider? > > I just attended an EMC presentation at the Netherlands Hotel in downtown > > Cinci for 2010, DAGs, and storage. > > Your storage provider SHOULD have a solution. > > > > > > > > On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) > > wrote: > > > > We are going to be moving to Exchange 2010. Basically we will have > > 14,000 users and will allow users to go up to 4 gig mailboxes. We will > > have 4 backends distributed between 2 on-site buildings for redundancy > > (power/network). We will also be deploying a DAG configuration with 2 > > copies per database. We are talking a ton of storage and the question > > keeps arising about backups. I've heard with the DAG deployment, a > > backup system isn't really required because of the database replication, > > but my mind keeps going back to the possibility of database corruption. > > Total data to be backed up could be 192 terabytes, so it's a large > amount > > of data. I was wondering what other large shops are using for that type > > of data. Comments on backup strategies for 2010? > > > > > > > > Pete Pfefferkorn > > > > University of Cincinnati > > > > Email Services-Systems Engineer > > > > pete.pfefferk...@uc.edu > > > > (513)556-9076 > > > > > > > > > > > > > > > > > > -- > > smsadm > > > > -- smsadm
Re: Exchange 2010 DAG and backup options/recommendations.
I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) < pfeff...@ucmail.uc.edu> wrote: > We were looking at going with Dells Powervault MD3200’s andMD1200’s. But > we are open to other vendors/options. > > > > *Pete Pfefferkorn* > > *University of Cincinnati* > > *Email Services-Systems Engineer* > > *pete.pfefferk...@uc.edu* > > *(513)556-9076* > > * * > > > > *From:* sms adm [mailto:sms...@gmail.com] > *Sent:* Wednesday, July 28, 2010 4:10 PM > *To:* MS-Exchange Admin Issues > *Subject:* Re: Exchange 2010 DAG and backup options/recommendations. > > > > Who is your storage provider? > I just attended an EMC presentation at the Netherlands Hotel in downtown > Cinci for 2010, DAGs, and storage. > Your storage provider SHOULD have a solution. > > On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) < > pfeff...@ucmail.uc.edu> wrote: > > We are going to be moving to Exchange 2010. Basically we will have 14,000 > users and will allow users to go up to 4 gig mailboxes. We will have 4 > backends distributed between 2 on-site buildings for redundancy > (power/network). We will also be deploying a DAG configuration with 2 > copies per database. We are talking a ton of storage and the question > keeps arising about backups. I’ve heard with the DAG deployment, a backup > system isn’t really required because of the database replication, but my > mind keeps going back to the possibility of database corruption. Total data > to be backed up could be 192 terabytes, so it’s a large amount of data. I > was wondering what other large shops are using for that type of data. > Comments on backup strategies for 2010? > > > > *Pete Pfefferkorn* > > *University of Cincinnati* > > *Email Services-Systems Engineer* > > *pete.pfefferk...@uc.edu* > > *(513)556-9076* > > * * > > > > > > > -- > smsadm >
Re: Exchange 2010 DAG and backup options/recommendations.
You want dependability, performance, *and great support*. Netapp will be priced high, but won't come back with additional costs like EMC and IBM have been well known to do. Their support is EXCELLENT. Find a vendor that will give you great service. On Wed, Jul 28, 2010 at 5:48 PM, Sean Martin wrote: > I would also look at the Dell/Equalogics. I keep hearing talk about them > being one of the best performing iSCSI units out there, even compared to the > big dogs like EMC and IBM. > > > > - Sean > > On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) < > pfeff...@ucmail.uc.edu> wrote: > >> We were looking at going with Dells Powervault MD3200’s andMD1200’s. >> But we are open to other vendors/options. >> >> >> >> *Pete Pfefferkorn* >> >> *University of Cincinnati* >> >> *Email Services-Systems Engineer* >> >> *pete.pfefferk...@uc.edu* >> >> *(513)556-9076* >> >> * * >> >> >> >> *From:* sms adm [mailto:sms...@gmail.com] >> *Sent:* Wednesday, July 28, 2010 4:10 PM >> *To:* MS-Exchange Admin Issues >> *Subject:* Re: Exchange 2010 DAG and backup options/recommendations. >> >> >> >> Who is your storage provider? >> I just attended an EMC presentation at the Netherlands Hotel in downtown >> Cinci for 2010, DAGs, and storage. >> Your storage provider SHOULD have a solution. >> >> On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) < >> pfeff...@ucmail.uc.edu> wrote: >> >> We are going to be moving to Exchange 2010. Basically we will have 14,000 >> users and will allow users to go up to 4 gig mailboxes. We will have 4 >> backends distributed between 2 on-site buildings for redundancy >> (power/network). We will also be deploying a DAG configuration with 2 >> copies per database. We are talking a ton of storage and the question >> keeps arising about backups. I’ve heard with the DAG deployment, a backup >> system isn’t really required because of the database replication, but my >> mind keeps going back to the possibility of database corruption. Total data >> to be backed up could be 192 terabytes, so it’s a large amount of data. I >> was wondering what other large shops are using for that type of data. >> Comments on backup strategies for 2010? >> >> >> >> *Pete Pfefferkorn* >> >> *University of Cincinnati* >> >> *Email Services-Systems Engineer* >> >> *pete.pfefferk...@uc.edu* >> >> *(513)556-9076* >> >> * * >> >> >> >> >> >> >> -- >> smsadm >> > > -- smsadm
Re: Exchange 2010 DAG and backup options/recommendations.
I would spend some time and read the ESRP results from each of the storage vendors you entertain. There's some excellent data and very interesting results. http://technet.microsoft.com/en-us/exchange/bb412164.aspx Pay particular attention to each vendor's hardware configuration and compare that to the amount of load (number of mailboxes) they were able to handle and still provide reasonable disk response times. (I believe under 20ms is the target). Once you've digested all of that, start obtaining price quotes from the various vendors. This is what brought Equalogics to my attention as a serious contender in the storage sector. And by the way, I currently manage two EMC CX700s and an EMC CX4-960. <http://technet.microsoft.com/en-us/exchange/bb412164.aspx> - Sean On Wed, Jul 28, 2010 at 1:59 PM, sms adm wrote: > You want dependability, performance, *and great support*. > Netapp will be priced high, but won't come back with additional costs like > EMC and IBM have been well known to do. Their support is EXCELLENT. > > Find a vendor that will give you great service. > > > On Wed, Jul 28, 2010 at 5:48 PM, Sean Martin wrote: > >> I would also look at the Dell/Equalogics. I keep hearing talk about them >> being one of the best performing iSCSI units out there, even compared to the >> big dogs like EMC and IBM. >> >> >> >> - Sean >> >> On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) < >> pfeff...@ucmail.uc.edu> wrote: >> >>> We were looking at going with Dells Powervault MD3200’s andMD1200’s. >>> But we are open to other vendors/options. >>> >>> >>> >>> *Pete Pfefferkorn* >>> >>> *University of Cincinnati* >>> >>> *Email Services-Systems Engineer* >>> >>> *pete.pfefferk...@uc.edu* >>> >>> *(513)556-9076* >>> >>> * * >>> >>> >>> >>> *From:* sms adm [mailto:sms...@gmail.com] >>> *Sent:* Wednesday, July 28, 2010 4:10 PM >>> *To:* MS-Exchange Admin Issues >>> *Subject:* Re: Exchange 2010 DAG and backup options/recommendations. >>> >>> >>> >>> Who is your storage provider? >>> I just attended an EMC presentation at the Netherlands Hotel in downtown >>> Cinci for 2010, DAGs, and storage. >>> Your storage provider SHOULD have a solution. >>> >>> On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) < >>> pfeff...@ucmail.uc.edu> wrote: >>> >>> We are going to be moving to Exchange 2010. Basically we will have >>> 14,000 users and will allow users to go up to 4 gig mailboxes. We will have >>> 4 backends distributed between 2 on-site buildings for redundancy >>> (power/network). We will also be deploying a DAG configuration with 2 >>> copies per database. We are talking a ton of storage and the question >>> keeps arising about backups. I’ve heard with the DAG deployment, a backup >>> system isn’t really required because of the database replication, but my >>> mind keeps going back to the possibility of database corruption. Total data >>> to be backed up could be 192 terabytes, so it’s a large amount of data. I >>> was wondering what other large shops are using for that type of data. >>> Comments on backup strategies for 2010? >>> >>> >>> >>> *Pete Pfefferkorn* >>> >>> *University of Cincinnati* >>> >>> *Email Services-Systems Engineer* >>> >>> *pete.pfefferk...@uc.edu* >>> >>> *(513)556-9076* >>> >>> * * >>> >>> >>> >>> >>> >>> >>> -- >>> smsadm >>> >> >> > > > -- > smsadm >
RE: Exchange 2010 DAG and backup options/recommendations.
I don't think I'd spend too much time studying storage vendors wares. They just aren't needed with 2010. 2010 is designed to use cheap big disks. DAG, DAG, DAG. Go simple. DL380 with a 40 drive box attached. One store per drive. It just doesn't get any easier than that. You just don't need ECM. M From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 4:06 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would spend some time and read the ESRP results from each of the storage vendors you entertain. There's some excellent data and very interesting results. http://technet.microsoft.com/en-us/exchange/bb412164.aspx Pay particular attention to each vendor's hardware configuration and compare that to the amount of load (number of mailboxes) they were able to handle and still provide reasonable disk response times. (I believe under 20ms is the target). Once you've digested all of that, start obtaining price quotes from the various vendors. This is what brought Equalogics to my attention as a serious contender in the storage sector. And by the way, I currently manage two EMC CX700s and an EMC CX4-960. - Sean On Wed, Jul 28, 2010 at 1:59 PM, sms adm wrote: You want dependability, performance, and great support. Netapp will be priced high, but won't come back with additional costs like EMC and IBM have been well known to do. Their support is EXCELLENT. Find a vendor that will give you great service. On Wed, Jul 28, 2010 at 5:48 PM, Sean Martin wrote: I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) wrote: We were looking at going with Dells Powervault MD3200's andMD1200's. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076 From: sms adm [mailto:sms...@gmail.com] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076 -- smsadm -- smsadm
RE: Exchange 2010 DAG and backup options/recommendations.
In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
Hi Richard Would you recommend a cloud archiving solution such as MS EHA ? Regards [cid:image001.jpg@01CB2F0B.BA61FA00] Peter Johnson I.T Architect United Kingdom: +44 1285 658542 South Africa: +27 11 252 1100 Swaziland: +268 442 7000 Fax:+27 11 974 7130 Mobile: +2783 306 0019 peter.john...@peterstow.com This email message (including attachments) contains information which may be confidential and/or legally privileged. Unless you are the intended recipient, you may not use, copy or disclose to anyone the message or any information contained in the message or from any attachments that were sent with this email, and If you have received this email message in error, please advise the sender by email, and delete the message. Unauthorised disclosure and/or use of information contained in this email may result in civil and criminal liability. Everything in this e-mail and attachments relating to the official business of Peterstow Aquapower is proprietary to the company. Caution should be observed in placing any reliance upon any information contained in this e-mail, which is not intended to be a representation or inducement to make any decision in relation to Peterstow Aquapower. Any decision taken based on the information provided in this e-mail, should only be made after consultation with appropriate legal, regulatory, tax, technical, business, investment, financial, and accounting advisors. Neither the sender of the e-mail, nor Peterstow Aquapower shall be liable to any party for any direct, indirect or consequential damages, including, without limitation, loss of profit, interruption of business or loss of information, data or software or otherwise. The e-mail address of the sender may not be used, copied, sold, disclosed or incorporated into any database or mailing list for spamming and/or other marketing purposes without the prior consent of Peterstow Aquapower. No warranties are created or implied that an employee of Peterstow Aquapower and/or a contractor of Peterstow Aquapower is authorized to create and send this e-mail. [cid:image002.jpg@01CB2F0B.BA61FA00] From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 29 July 2010 10:49 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 <><>
RE: Exchange 2010 DAG and backup options/recommendations.
But that's the point of single item recovery. For example, if you keep backups for 90 days you can set single item recovery on all mailboxes to 90 days; the data is still in Exchange and can be recovered. It just means there's a larger mailbox for each user but this isn't a problem with the Exchange 2010 architecture. From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 29 July 2010 09:49 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
Point taken. It's actually something I had never considered - using the Dumpster (SIR in 2010 I guess?) and deleted mailbox retention as a "backup" solution. With the database copies you're also protected against storage failures. Hmmm. Many things to consider. That said, we actually had someone the other day who purged his dumpster as he thought it was counting toward his quota! Richard From: bounce-9036128-8066...@lyris.sunbelt-software.com [mailto:bounce-9036128-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 10:00 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. But that's the point of single item recovery. For example, if you keep backups for 90 days you can set single item recovery on all mailboxes to 90 days; the data is still in Exchange and can be recovered. It just means there's a larger mailbox for each user but this isn't a problem with the Exchange 2010 architecture. From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 29 July 2010 09:49 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
In addition an archiving solution may be in order. Three DAG boxes give redundancy but not so much for the long term message recovery. M From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: Thursday, July 29, 2010 2:17 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. Point taken. It's actually something I had never considered - using the Dumpster (SIR in 2010 I guess?) and deleted mailbox retention as a "backup" solution. With the database copies you're also protected against storage failures. Hmmm. Many things to consider. That said, we actually had someone the other day who purged his dumpster as he thought it was counting toward his quota! Richard From: bounce-9036128-8066...@lyris.sunbelt-software.com [mailto:bounce-9036128-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 10:00 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. But that's the point of single item recovery. For example, if you keep backups for 90 days you can set single item recovery on all mailboxes to 90 days; the data is still in Exchange and can be recovered. It just means there's a larger mailbox for each user but this isn't a problem with the Exchange 2010 architecture. From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 29 July 2010 09:49 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
Single item recovery also protects you (the administrator) in cases where the user purges the dumpster. This is an excellent read: http://msexchangeteam.com/archive/2009/09/25/452632.aspx From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 29 July 2010 10:17 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. Point taken. It's actually something I had never considered - using the Dumpster (SIR in 2010 I guess?) and deleted mailbox retention as a "backup" solution. With the database copies you're also protected against storage failures. Hmmm. Many things to consider. That said, we actually had someone the other day who purged his dumpster as he thought it was counting toward his quota! Richard From: bounce-9036128-8066...@lyris.sunbelt-software.com [mailto:bounce-9036128-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 10:00 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. But that's the point of single item recovery. For example, if you keep backups for 90 days you can set single item recovery on all mailboxes to 90 days; the data is still in Exchange and can be recovered. It just means there's a larger mailbox for each user but this isn't a problem with the Exchange 2010 architecture. From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: 29 July 2010 09:49 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
The two physical sites would be on two different segments of our campus so we have redundant network links as well as power for both. Load would be distributed between the two of them (2 servers per site) with replication between the two. We have also been considering a third non-local site 30 to 40 miles away, but we are still looking at bandwidth at that site. That would be a third copy of our DB's and we would put some latency on the copies (possibly a few days) basically for DR purposes only. We currently have a 30 day deleted item retention period for users. We also have a 6 month Deleted Mailbox Retention period on the servers so we can recover a mailbox up to 6 months. Our Tivoli Backups give us an extra 60 days on top of that. Our current Exchange deployment uses a DS 4800 but with the new Exchange 2010 and expanded quota requirements and DAG, the SAN storage is too expensive of a solution especially if we are breaking up or server location in 2 to 3 sites. Our current Tivoli backups are running about 8 hours to backup 3.2 terabytes for full backups. Our whole backup strategy for Exchange 2010 is being looked at closely. The team still would like to be able to have some off-site backups (currently done with Tivoli) for that extra comfort level. Pete Pfefferkorn University of Cincinnati Systems Engineer/Messaging Administrator (513) 556-9076 pfeff...@ucmail.uc.edu From: Sobey, Richard A [mailto:r.so...@imperial.ac.uk] Sent: Thursday, July 29, 2010 4:49 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. That would be my biggest concern: the absence of a backup to restore someone's mailbox from two to three months ago. There's backup for disaster recovery, then there's backup for user stupidity. From: bounce-9036114-8066...@lyris.sunbelt-software.com [mailto:bounce-9036114-8066...@lyris.sunbelt-software.com] On Behalf Of Neil Hobson Sent: 29 July 2010 09:44 To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. In addition to what has already been said, let's talk a little about your statement "a backup system isn't really required". What you're referring to there is Exchange native data protection and if you go down this route there are some very clear things that you need to consider. For example, the MS recommendation is that you have at least 3 database copies if you implement native data protection; you've said 2 copies per database in your statement. I don't know your environment, and I know it's extremely unlikely to happen, but could your 2 on-site buildings be taken out at the same time? Consider a 3rd copy somewhere completely remote. You say you're worried about database corruption - that's where lagged database copies come in, so you'd need to consider those (which will take your design to 3 database copies anyway). Also, what are you planning to do regarding single item recovery? That affects the users and your ability to restore in the absence of a backup. From: Pfefferkorn, Pete (pfeffepe) [mailto:pfeff...@ucmail.uc.edu] Sent: 28 July 2010 21:02 To: MS-Exchange Admin Issues Subject: Exchange 2010 DAG and backup options/recommendations. We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076
RE: Exchange 2010 DAG and backup options/recommendations.
> http://technet.microsoft.com/en-us/exchange/bb412164.aspx > > Pay particular attention to each vendor's hardware configuration and > compare that to the amount of load (number of mailboxes) they were able > to handle and still provide reasonable disk response times. (I believe > under 20ms is the target). This is a pretty great tool from the Exchange POV. It is also very good advice to the OP to do much research before locking in to a storage vendor. We looked at a number of storage vendors, spending the most time on the perceived market leaders: Equalogic, EMC, and NetApp, but also some smaller or up and comers: GreenBytes, Nexentia, DataCore, Xiotech, LeftHand, and Coraid. Every vendor has their own strengths and weaknesses. Equalogic is certainly a great product and value but we found it was much more expensive when we took the long view in our situation. Here's an example why we didn't go down the Equalogic path: The SAN, in our case, is used by additional services other than Exchange and will grow with time. The distributed style architecture of Equalogic et al (where each disk shelf houses controllers) is great for scaling performance but not so good when you consider the monetary costs of scaling. For example, a higher end Equalogic solution was a little more than $50K for a single shelf of drives (about 3TB). When that isn't enough space, or more likely, we need to add more spindles of performance, there goes another $50K for a shelf of drives. Had we decided that redundant controllers were not a requirement this would have had a smaller, $30K impact. A Lower-mid tier NetApp solution (FAS2040) is, say, around $100K (about 5TB useable primary storage). Each shelf of drives is a bit less than $15K though, so as storage scales the cost is manageable. There are also a lot of software features in that $100K. No doubt these prices will drop down the line for all vendors--if not already--but I think it illustrates why it is important to consider more than current needs only. A point against NetApp is the need to somewhat over-spec to attain the same performance as other more traditional SAN vendors. In the long view that didn't seem to matter. I like everyone's points in the rest of this thread about backup and recovery. Many SAN vendors have solutions in this problem-space as well. They are worth a look. ~JasonG
Re: Exchange 2010 DAG and backup options/recommendations.
Here's the ESRP for 2010. I provided the link for 2007 because a lot more vendors have participated. http://technet.microsoft.com/en-us/exchange/ff182054.aspx Jason, you make some interesting points. I need to remember that when providing my opinion, ommitting important information can sometimes be hazardous. Performance is the number one consideration in my environment. When looking at the Equalogics, I liked the grid architecture that allows for linear scalability of both capacity and performance. I was also impressed with the effeciency of the unit in terms of disk IOPS. Its as if they can pull 2-3 times the IOPS off a SATA disk over other vendors. Anyway, the important thing is to understand your objectives and requirements and then determine which vendor best meets those. - Sean On Thu, Jul 29, 2010 at 6:57 AM, Jason Gurtz wrote: > > http://technet.microsoft.com/en-us/exchange/bb412164.aspx > > > > Pay particular attention to each vendor's hardware configuration and > > compare that to the amount of load (number of mailboxes) they were able > > to handle and still provide reasonable disk response times. (I believe > > under 20ms is the target). > > This is a pretty great tool from the Exchange POV. It is also very good > advice to the OP to do much research before locking in to a storage > vendor. We looked at a number of storage vendors, spending the most time > on the perceived market leaders: Equalogic, EMC, and NetApp, but also some > smaller or up and comers: GreenBytes, Nexentia, DataCore, Xiotech, > LeftHand, and Coraid. Every vendor has their own strengths and > weaknesses. Equalogic is certainly a great product and value but we found > it was much more expensive when we took the long view in our situation. > Here's an example why we didn't go down the Equalogic path: > > The SAN, in our case, is used by additional services other than Exchange > and will grow with time. The distributed style architecture of Equalogic > et al (where each disk shelf houses controllers) is great for scaling > performance but not so good when you consider the monetary costs of > scaling. > > For example, a higher end Equalogic solution was a little more than $50K > for a single shelf of drives (about 3TB). When that isn't enough space, > or more likely, we need to add more spindles of performance, there goes > another $50K for a shelf of drives. Had we decided that redundant > controllers were not a requirement this would have had a smaller, $30K > impact. A Lower-mid tier NetApp solution (FAS2040) is, say, around $100K > (about 5TB useable primary storage). Each shelf of drives is a bit less > than $15K though, so as storage scales the cost is manageable. There are > also a lot of software features in that $100K. No doubt these prices will > drop down the line for all vendors--if not already--but I think it > illustrates why it is important to consider more than current needs only. > > A point against NetApp is the need to somewhat over-spec to attain the > same performance as other more traditional SAN vendors. In the long view > that didn't seem to matter. > > I like everyone's points in the rest of this thread about backup and > recovery. Many SAN vendors have solutions in this problem-space as well. > They are worth a look. > > ~JasonG > > > > >
RE: Exchange 2010 DAG and backup options/recommendations.
Major +1 on Equallogic...contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you're done. No more SAN for you. Hope this helps... Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200's andMD1200's. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I've heard with the DAG deployment, a backup system isn't really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it's a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm
Re: Exchange 2010 DAG and backup options/recommendations.
I believe the connections max is 16 IIRC John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:22:21 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. Major +1 on Equallogic…contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you’re done. No more SAN for you. Hope this helps… Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200’s andMD1200’s. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I’ve heard with the DAG deployment, a backup system isn’t really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it’s a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. This email and any attached files are confidential and intended solely for the intended recipient(s). If you are not the named recipient you should not read, distribute, copy or alter this email. Any views or opinions expressed in this email are those of the author and do not represent those of the company. Warning: Although precautions have been taken to make sure no viruses are present in this email, the company cannot accept responsibility for any loss or damage that arise from the use of this email or attachments.
RE: Exchange 2010 DAG and backup options/recommendations.
You know what Cookiemonster? You’re wrong! Don’t make me hop in the truck and come to Florida… Shook From: John Cook [mailto:john.c...@pfsf.org] Sent: Monday, August 02, 2010 9:27 AM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I believe the connections max is 16 IIRC John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:22:21 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. Major +1 on Equallogic…contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you’re done. No more SAN for you. Hope this helps… Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200’s andMD1200’s. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I’ve heard with the DAG deployment, a backup system isn’t really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it’s a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. This email and any attached files are confidential and intended solely for the intended recipient(s). If you are not the named recipient you should not read, distribute, copy or alter this email. Any views or opinions expressed in this email are those of the author and do not represent those of the company. Warning: Although precautions have been taken to make sure no viruses are present in this email, the company cannot accept responsibility for any loss or damage that arise from the use of this email or attachments.
Re: Exchange 2010 DAG and backup options/recommendations.
You're gonna have to take the hog slop barrels out first, they won't let you across the state line otherwise. John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:46:14 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. You know what Cookiemonster? You’re wrong! Don’t make me hop in the truck and come to Florida… Shook From: John Cook [mailto:john.c...@pfsf.org] Sent: Monday, August 02, 2010 9:27 AM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I believe the connections max is 16 IIRC John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:22:21 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. Major +1 on Equallogic…contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you’re done. No more SAN for you. Hope this helps… Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200’s andMD1200’s. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I’ve heard with the DAG deployment, a backup system isn’t really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it’s a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. This email and any attached files are confidential and intended solely for the intended recipient(s). If you are not the named recipient you should not read, distribute, copy or alter this email. Any views or opinions expressed in this email are those of the author and do not represent those of the company. Warning: Although precautions have been taken to make sure no viruses are present in this email, the company cannot accept responsibility for any loss or damage that arise from the use of this email or attachments. CONFIDENTIALITY STATEMENT: The information transmitted, or contained or
RE: Exchange 2010 DAG and backup options/recommendations.
And I think you are both right. The theoretical number available is 16. You can’t use 0 and you can’t use 15 (similar to the limitation in IP). That takes you down to 14. Then each controller uses one. With dual controllers, that takes you down to 12. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: Andy Shook [mailto:andy.sh...@peak10.com] Sent: Monday, August 02, 2010 9:46 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. You know what Cookiemonster? You’re wrong! Don’t make me hop in the truck and come to Florida… Shook From: John Cook [mailto:john.c...@pfsf.org] Sent: Monday, August 02, 2010 9:27 AM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I believe the connections max is 16 IIRC John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:22:21 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. Major +1 on Equallogic…contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you’re done. No more SAN for you. Hope this helps… Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200’s andMD1200’s. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I’ve heard with the DAG deployment, a backup system isn’t really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it’s a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. This email and any attached files are confidential and intended solely for the intended recipient(s). If you are not the named recipient you should not read, distribute, copy or alter this email. Any views or opinions expressed in this email are those of the author and do not represent those of the company. Warning: Although precautions have been taken to make sure no viruses are present in this email, the company cannot accept responsibility for any loss or damage that
RE: Exchange 2010 DAG and backup options/recommendations.
Actually, the number is 12, that means I’m right. Shook From: Michael B. Smith [mailto:mich...@smithcons.com] Sent: Monday, August 02, 2010 1:16 PM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. And I think you are both right. The theoretical number available is 16. You can’t use 0 and you can’t use 15 (similar to the limitation in IP). That takes you down to 14. Then each controller uses one. With dual controllers, that takes you down to 12. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: Andy Shook [mailto:andy.sh...@peak10.com] Sent: Monday, August 02, 2010 9:46 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. You know what Cookiemonster? You’re wrong! Don’t make me hop in the truck and come to Florida… Shook From: John Cook [mailto:john.c...@pfsf.org] Sent: Monday, August 02, 2010 9:27 AM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I believe the connections max is 16 IIRC John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:22:21 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. Major +1 on Equallogic…contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you’re done. No more SAN for you. Hope this helps… Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200’s andMD1200’s. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I’ve heard with the DAG deployment, a backup system isn’t really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it’s a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be protected by the Health Insurance Portability and Accountability Act of 1996 (HIPAA), and other Federal and Florida laws. Improper or unauthorized use or disclosure of this information could result in civil and/or criminal penalties. Consider the environment. Please don't print this e-mail unless you really need to. This email and any attached files are confidential and intended solely for the intended recipient(s). If you are not the named recipient you should not read, distribute, copy or alter this email. Any views or opinions expressed in
RE: Exchange 2010 DAG and backup options/recommendations.
Grab a couple of your relatives and use everyone’s teeth so you can count that high…. Complete. Total. Burn. Shook From: John Cook [mailto:john.c...@pfsf.org] Sent: Monday, August 02, 2010 2:05 PM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. 12 useable, 16 total, take your shoes off so you can count that high…….. From: Andy Shook [mailto:andy.sh...@peak10.com] Sent: Monday, August 02, 2010 2:02 PM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. Actually, the number is 12, that means I’m right. Shook From: Michael B. Smith [mailto:mich...@smithcons.com] Sent: Monday, August 02, 2010 1:16 PM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. And I think you are both right. The theoretical number available is 16. You can’t use 0 and you can’t use 15 (similar to the limitation in IP). That takes you down to 14. Then each controller uses one. With dual controllers, that takes you down to 12. Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: Andy Shook [mailto:andy.sh...@peak10.com] Sent: Monday, August 02, 2010 9:46 AM To: MS-Exchange Admin Issues Subject: RE: Exchange 2010 DAG and backup options/recommendations. You know what Cookiemonster? You’re wrong! Don’t make me hop in the truck and come to Florida… Shook From: John Cook [mailto:john.c...@pfsf.org] Sent: Monday, August 02, 2010 9:27 AM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I believe the connections max is 16 IIRC John W. Cook Systems Administrator Partnership for Strong Families From: Andy Shook To: MS-Exchange Admin Issues Sent: Mon Aug 02 09:22:21 2010 Subject: RE: Exchange 2010 DAG and backup options/recommendations. Major +1 on Equallogic…contact me offlist is you have any specific questions. Also, watch out for the Dell arrays they both have a max number of connection limits (12, me thinks). So..if you have six servers with each with two connections for redundancy to the SAN, you’re done. No more SAN for you. Hope this helps… Shook From: Sean Martin [mailto:seanmarti...@gmail.com] Sent: Wednesday, July 28, 2010 5:48 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. I would also look at the Dell/Equalogics. I keep hearing talk about them being one of the best performing iSCSI units out there, even compared to the big dogs like EMC and IBM. - Sean On Wed, Jul 28, 2010 at 12:30 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We were looking at going with Dells Powervault MD3200’s andMD1200’s. But we are open to other vendors/options. Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 From: sms adm [mailto:sms...@gmail.com<mailto:sms...@gmail.com>] Sent: Wednesday, July 28, 2010 4:10 PM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 DAG and backup options/recommendations. Who is your storage provider? I just attended an EMC presentation at the Netherlands Hotel in downtown Cinci for 2010, DAGs, and storage. Your storage provider SHOULD have a solution. On Wed, Jul 28, 2010 at 4:01 PM, Pfefferkorn, Pete (pfeffepe) mailto:pfeff...@ucmail.uc.edu>> wrote: We are going to be moving to Exchange 2010. Basically we will have 14,000 users and will allow users to go up to 4 gig mailboxes. We will have 4 backends distributed between 2 on-site buildings for redundancy (power/network). We will also be deploying a DAG configuration with 2 copies per database. We are talking a ton of storage and the question keeps arising about backups. I’ve heard with the DAG deployment, a backup system isn’t really required because of the database replication, but my mind keeps going back to the possibility of database corruption. Total data to be backed up could be 192 terabytes, so it’s a large amount of data. I was wondering what other large shops are using for that type of data. Comments on backup strategies for 2010? Pete Pfefferkorn University of Cincinnati Email Services-Systems Engineer pete.pfefferk...@uc.edu<mailto:pete.pfefferk...@uc.edu> (513)556-9076 -- smsadm CONFIDENTIALITY STATEMENT: The information transmitted, or contained or attached to or with this Notice is intended only for the person or entity to which it is addressed and may contain Protected Health Information (PHI), confidential and/or privileged material. Any review, transmission, dissemination, or other use of, and taking any action in reliance upon this information by persons or entities other than the intended recipient without the express written consent of the sender are prohibited. This information may be pro
