Re: Anyone used EMC Timefinder to replicate DB's
> hey guys - > > Working on some replication efforts.. And I haven't used EMC Timefinder > to push data from one DB to another.. Are there any documents with the > details available? I'm working on getting thru the EMC web site as well > as metalink, but wanted to throw this out on the list since everyone is > so helpful:-) > > And I'm also in too much of a hurry to RTFM:-) since I need to get > something done by Wednesday.. > > > Thanks in advance! > Greg Loughmiller > Sr Manager - Enterprise Data Architecture > gloughmiller (IPS) > 678.893.3217 (office) > Aside from the excellent notes on the Oracle piece of it, there are some EMC-side things to remember: -remember that whatever host you want to perform the BCV split/establish actions from needs to be able to see gatekeepers. -The normal methodology is to create BCV groups based on functional purpose if you're not using software RAID and if you're using software RAID, make sure you match the BCV groups to the software RAID groups. -If you're using Veritas or some other software volume manager, make absolutely sure that the BCVs are not exposed to the same host as the STD (source) volumes. -Also, if you're using a software RAID layer atop the EMC devices (i.e. RAID-0 across EMC RAID-1 volumes), make sure you use instant splits rather than traditional splits. With traditional splits, the EMC volumes within the BCV group are separated like a zipper, which can create corruption in software RAID sets - instant splits quiesce all the volumes within the group and then split them at once. -From a performance standpoint, while you leave the BCVs in ESTABLISHED state, the Symmetrix will use them as a third mirror for valid I/Os. Depending on the revision of microcode, I seem to recall that the BCV will be used for reads for all remaining valid tracks. -Incremental establishes are much slower than full establishes - depending on the rate of changed data, it could actually be faster to do a full establish than an incremental. You probably want to time establishes both ways. -Is this on a Sun server? If it is, make sure you never do a reconfigure reboot (touch /reconfigure or reboot -- -r or boot -r) while the BCVs are established. If its a Linux box, you'll need to manually reprobe the SCSI devices if you reboot during an established state. I don't know what to do on windows or any of the other UNIXes, but remember that established BCVs vanish from the SCSI channel, so avoid situations where the host is rescanning or reconfiguring while they're established. Feel free to email me off-list if you have any other questions on any of this or if you run into any problems. Thanks, Matt -- Matthew Zito GridApp Systems Email: [EMAIL PROTECTED] Cell: 646-220-3551 Phone: 212-358-8211 x 359 http://www.gridapp.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Matthew Zito INET: [EMAIL PROTECTED] Fat City Network Services-- 858-538-5051 http://www.fatcity.com San Diego, California-- Mailing list and web hosting services - To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: Anyone used EMC Timefinder to replicate DB's
Its simply a hotbackup snapshot... so just lookup the cloning proceedure from Hotbackup and you are done. Brian Spears -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Loughmil ler, GregSent: Monday, December 01, 2003 1:54 PMTo: Multiple recipients of list ORACLE-LSubject: Anyone used EMC Timefinder to replicate DB's hey guys - Working on some replication efforts.. And I haven't used EMC Timefinder to push data from one DB to another.. Are there any documents with the details available? I'm working on getting thru the EMC web site as well as metalink, but wanted to throw this out on the list since everyone is so helpful:-) And I'm also in too much of a hurry to RTFM:-) since I need to get something done by Wednesday.. Thanks in advance! Greg Loughmiller Sr Manager - Enterprise Data Architecture gloughmiller (IPS) 678.893.3217 (office)
RE: Anyone used EMC Timefinder to replicate DB's
YES. Do you have specific questions??? Dick GouletSenior Oracle DBAOracle Certified 8i DBA -Original Message-From: Loughmiller, Greg [mailto:[EMAIL PROTECTED]Sent: Monday, December 01, 2003 1:54 PMTo: Multiple recipients of list ORACLE-LSubject: Anyone used EMC Timefinder to replicate DB's hey guys - Working on some replication efforts.. And I haven't used EMC Timefinder to push data from one DB to another.. Are there any documents with the details available? I'm working on getting thru the EMC web site as well as metalink, but wanted to throw this out on the list since everyone is so helpful:-) And I'm also in too much of a hurry to RTFM:-) since I need to get something done by Wednesday.. Thanks in advance! Greg Loughmiller Sr Manager - Enterprise Data Architecture gloughmiller (IPS) 678.893.3217 (office)
Anyone used EMC Timefinder to replicate DB's
hey guys - Working on some replication efforts.. And I haven't used EMC Timefinder to push data from one DB to another.. Are there any documents with the details available? I'm working on getting thru the EMC web site as well as metalink, but wanted to throw this out on the list since everyone is so helpful:-) And I'm also in too much of a hurry to RTFM:-) since I need to get something done by Wednesday.. Thanks in advance! Greg Loughmiller Sr Manager - Enterprise Data Architecture gloughmiller (IPS) 678.893.3217 (office)
Re: EMC Timefinder
Srikanth, We used to have BCVs/Symmetrix on somany production databases. But most of the databases are moving from BCVs to RMAN. Infact there are very few BCVs left. With RMAN we can do the hot backups and also do not need another machine to synch up the BCVs. Also instead of using Symmetrix storage for space, Tape is used for backups using EDM software. RMAN allows us to duplicate the database onto another machine (that way production db can copied to test db with a different file structure and DB name) So do some research on what you want, BCV or RMAN for your backup needs. Both have pros and cons... Rama "Valuthur, Srikanth" wrote: > Thank Gary for the reply. I have already implemented BCV on a different > environment. My question was related to BCV/RMAN as what I have done before > was with BCV/SQL BT. > > Thanx for the input > > Srikanth > > -Original Message- > Sent: Wednesday, August 08, 2001 1:18 PM > To: Multiple recipients of list ORACLE-L > > This is a pretty large, complex topic. Which is likely why you didn't get > any replies. Myself not having enough time to go into many details, here are > few key points: > > We run on EMC. We don't use RMAN. > > Biggest pro: > BCV - business continuation volumes. I can afford 5 minutes of downtime > weekly. In that window I get a full cold backup of few hundred gigs of > database files. > > Cons: > Complex beast to setup from EMC side. This translates in very few available > resources who can do so. > Double the disk - for BCV with secondary, online copy of everything. We > learned with our Symmetrix box that its not the amount of disk thats costly, > but the effort to add additional disks. > > Process to setup? > 1. Identify your availability requirements. > 2. Overestimate storage requirements. Multiply by two. > 3. You do have a fail-over machine? It will have to support entire > production load if primary fails, plus local apps - don't undersize. > 4. Train some one onsite in EMC ways. > 5. Fail-over box, in our case, drives the BCV process - go from there. > > Gary Weber > Senior DBA > Charles Jones, LLC > 609-530-1144, ext 5529 > > -Original Message- > Srikanth > Sent: Wednesday, August 08, 2001 1:17 PM > To: Multiple recipients of list ORACLE-L > > I did posted this yesterday. I am posting it again for any valuable > responses from the gurus. > > Thanx > > Srikanth > > -Original Message- > Sent: Tuesday, August 07, 2001 10:32 AM > To: Multiple recipients of list ORACLE-L > > Hi Folks, > > Good Morning. I am very new to this forum, So Please bear with me for any > mistakes. I am also relatively new to the oracle 8 front(I am coming back > to oracle after a gap of 4 years). So the question may be stupid. > > We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder > and RMAN. While there are no documents to describe how to do the setup on > this, We did find some notes. But those are with oracle 7.0. > > Is someone on the group has this kind of setup? If so, Can you update me on > the process?? Any Pros and Cons to go with this? > > Thanx for all responses > > Srikanth VS > [EMAIL PROTECTED] > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Valuthur, Srikanth > INET: [EMAIL PROTECTED] > > Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California-- Public Internet access / Mailing Lists > > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Gary Weber > INET: [EMAIL PROTECTED] > > Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California-- Public Internet access / Mailing Lists > > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Valuthur, Sri
RE: EMC Timefinder
Wow, This reply is little bit different. I thought BCV and RMAN go hand in hand. I never thought BCV or RMAN. I do understand the power of RMAN, But considering the time it takes to do the BAckups/REstores as supposed to BCV, Its defeated. BAck in my previous environment, I used SQL B/T, Backup the volumes, Do a Split and REstore those volumes to the failover machine. Since SQL B/T handles most of the issues, I am fine with that. Here Rman throws me out saying that DBID is already registered in another source and so cannot backup. The real question is 1. What steps to follow? 2. What Order to follow? I am very new to RMAN and so these procedures confuse me.. Thanx Srikanth -Original Message- Sent: Wednesday, August 08, 2001 4:16 PM To: Multiple recipients of list ORACLE-L Srikanth, We used to have BCVs/Symmetrix on somany production databases. But most of the databases are moving from BCVs to RMAN. Infact there are very few BCVs left. With RMAN we can do the hot backups and also do not need another machine to synch up the BCVs. Also instead of using Symmetrix storage for space, Tape is used for backups using EDM software. RMAN allows us to duplicate the database onto another machine (that way production db can copied to test db with a different file structure and DB name) So do some research on what you want, BCV or RMAN for your backup needs. Both have pros and cons... Rama "Valuthur, Srikanth" wrote: > Thank Gary for the reply. I have already implemented BCV on a different > environment. My question was related to BCV/RMAN as what I have done before > was with BCV/SQL BT. > > Thanx for the input > > Srikanth > > -Original Message- > Sent: Wednesday, August 08, 2001 1:18 PM > To: Multiple recipients of list ORACLE-L > > This is a pretty large, complex topic. Which is likely why you didn't get > any replies. Myself not having enough time to go into many details, here are > few key points: > > We run on EMC. We don't use RMAN. > > Biggest pro: > BCV - business continuation volumes. I can afford 5 minutes of downtime > weekly. In that window I get a full cold backup of few hundred gigs of > database files. > > Cons: > Complex beast to setup from EMC side. This translates in very few available > resources who can do so. > Double the disk - for BCV with secondary, online copy of everything. We > learned with our Symmetrix box that its not the amount of disk thats costly, > but the effort to add additional disks. > > Process to setup? > 1. Identify your availability requirements. > 2. Overestimate storage requirements. Multiply by two. > 3. You do have a fail-over machine? It will have to support entire > production load if primary fails, plus local apps - don't undersize. > 4. Train some one onsite in EMC ways. > 5. Fail-over box, in our case, drives the BCV process - go from there. > > Gary Weber > Senior DBA > Charles Jones, LLC > 609-530-1144, ext 5529 > > -Original Message- > Srikanth > Sent: Wednesday, August 08, 2001 1:17 PM > To: Multiple recipients of list ORACLE-L > > I did posted this yesterday. I am posting it again for any valuable > responses from the gurus. > > Thanx > > Srikanth > > -Original Message- > Sent: Tuesday, August 07, 2001 10:32 AM > To: Multiple recipients of list ORACLE-L > > Hi Folks, > > Good Morning. I am very new to this forum, So Please bear with me for any > mistakes. I am also relatively new to the oracle 8 front(I am coming back > to oracle after a gap of 4 years). So the question may be stupid. > > We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder > and RMAN. While there are no documents to describe how to do the setup on > this, We did find some notes. But those are with oracle 7.0. > > Is someone on the group has this kind of setup? If so, Can you update me on > the process?? Any Pros and Cons to go with this? > > Thanx for all responses > > Srikanth VS > [EMAIL PROTECTED] > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Valuthur, Srikanth > INET: [EMAIL PROTECTED] > > Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California-- Public Internet access / Mailing Lists > > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > > -- > Please see the of
RE: EMC Timefinder
Title: RE: EMC Timefinder Srikanth, There should be some documentation provided by EMC. What tape management software are you using? They should have some specific doco as well. Oracle does not provide the specific documentation. I researched this last year and found that EMC and HP OmniBack had some detailed doco on install/configuration - however, then I found out we didn't even purchase the license for EMC/Oracle/OmniBack to talk :) cheapskates Hope this helps. Lisa Koivu Dog Babysitter (and DBA) Ft. lauderdale, FL, USA -Original Message- From: Valuthur, Srikanth [SMTP:[EMAIL PROTECTED]] Sent: Wednesday, August 08, 2001 1:17 PM To: Multiple recipients of list ORACLE-L Subject: RE: EMC Timefinder I did posted this yesterday. I am posting it again for any valuable responses from the gurus. Thanx Srikanth -Original Message- Sent: Tuesday, August 07, 2001 10:32 AM To: Multiple recipients of list ORACLE-L Hi Folks, Good Morning. I am very new to this forum, So Please bear with me for any mistakes. I am also relatively new to the oracle 8 front(I am coming back to oracle after a gap of 4 years). So the question may be stupid. We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder and RMAN. While there are no documents to describe how to do the setup on this, We did find some notes. But those are with oracle 7.0. Is someone on the group has this kind of setup? If so, Can you update me on the process?? Any Pros and Cons to go with this? Thanx for all responses Srikanth VS [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Valuthur, Srikanth INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC Timefinder
Thank Gary for the reply. I have already implemented BCV on a different environment. My question was related to BCV/RMAN as what I have done before was with BCV/SQL BT. Thanx for the input Srikanth -Original Message- Sent: Wednesday, August 08, 2001 1:18 PM To: Multiple recipients of list ORACLE-L This is a pretty large, complex topic. Which is likely why you didn't get any replies. Myself not having enough time to go into many details, here are few key points: We run on EMC. We don't use RMAN. Biggest pro: BCV - business continuation volumes. I can afford 5 minutes of downtime weekly. In that window I get a full cold backup of few hundred gigs of database files. Cons: Complex beast to setup from EMC side. This translates in very few available resources who can do so. Double the disk - for BCV with secondary, online copy of everything. We learned with our Symmetrix box that its not the amount of disk thats costly, but the effort to add additional disks. Process to setup? 1. Identify your availability requirements. 2. Overestimate storage requirements. Multiply by two. 3. You do have a fail-over machine? It will have to support entire production load if primary fails, plus local apps - don't undersize. 4. Train some one onsite in EMC ways. 5. Fail-over box, in our case, drives the BCV process - go from there. Gary Weber Senior DBA Charles Jones, LLC 609-530-1144, ext 5529 -Original Message- Srikanth Sent: Wednesday, August 08, 2001 1:17 PM To: Multiple recipients of list ORACLE-L I did posted this yesterday. I am posting it again for any valuable responses from the gurus. Thanx Srikanth -Original Message- Sent: Tuesday, August 07, 2001 10:32 AM To: Multiple recipients of list ORACLE-L Hi Folks, Good Morning. I am very new to this forum, So Please bear with me for any mistakes. I am also relatively new to the oracle 8 front(I am coming back to oracle after a gap of 4 years). So the question may be stupid. We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder and RMAN. While there are no documents to describe how to do the setup on this, We did find some notes. But those are with oracle 7.0. Is someone on the group has this kind of setup? If so, Can you update me on the process?? Any Pros and Cons to go with this? Thanx for all responses Srikanth VS [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Valuthur, Srikanth INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gary Weber INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Valuthur, Srikanth INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC Timefinder
This is a pretty large, complex topic. Which is likely why you didn't get any replies. Myself not having enough time to go into many details, here are few key points: We run on EMC. We don't use RMAN. Biggest pro: BCV - business continuation volumes. I can afford 5 minutes of downtime weekly. In that window I get a full cold backup of few hundred gigs of database files. Cons: Complex beast to setup from EMC side. This translates in very few available resources who can do so. Double the disk - for BCV with secondary, online copy of everything. We learned with our Symmetrix box that its not the amount of disk thats costly, but the effort to add additional disks. Process to setup? 1. Identify your availability requirements. 2. Overestimate storage requirements. Multiply by two. 3. You do have a fail-over machine? It will have to support entire production load if primary fails, plus local apps - don't undersize. 4. Train some one onsite in EMC ways. 5. Fail-over box, in our case, drives the BCV process - go from there. Gary Weber Senior DBA Charles Jones, LLC 609-530-1144, ext 5529 -Original Message- Srikanth Sent: Wednesday, August 08, 2001 1:17 PM To: Multiple recipients of list ORACLE-L I did posted this yesterday. I am posting it again for any valuable responses from the gurus. Thanx Srikanth -Original Message- Sent: Tuesday, August 07, 2001 10:32 AM To: Multiple recipients of list ORACLE-L Hi Folks, Good Morning. I am very new to this forum, So Please bear with me for any mistakes. I am also relatively new to the oracle 8 front(I am coming back to oracle after a gap of 4 years). So the question may be stupid. We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder and RMAN. While there are no documents to describe how to do the setup on this, We did find some notes. But those are with oracle 7.0. Is someone on the group has this kind of setup? If so, Can you update me on the process?? Any Pros and Cons to go with this? Thanx for all responses Srikanth VS [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Valuthur, Srikanth INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gary Weber INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC Timefinder
I did posted this yesterday. I am posting it again for any valuable responses from the gurus. Thanx Srikanth -Original Message- Sent: Tuesday, August 07, 2001 10:32 AM To: Multiple recipients of list ORACLE-L Hi Folks, Good Morning. I am very new to this forum, So Please bear with me for any mistakes. I am also relatively new to the oracle 8 front(I am coming back to oracle after a gap of 4 years). So the question may be stupid. We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder and RMAN. While there are no documents to describe how to do the setup on this, We did find some notes. But those are with oracle 7.0. Is someone on the group has this kind of setup? If so, Can you update me on the process?? Any Pros and Cons to go with this? Thanx for all responses Srikanth VS [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Valuthur, Srikanth INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
EMC Timefinder
Hi Folks, Good Morning. I am very new to this forum, So Please bear with me for any mistakes. I am also relatively new to the oracle 8 front(I am coming back to oracle after a gap of 4 years). So the question may be stupid. We are trying to set up an environment using Oracle 8.1.7, Emc Timefinder and RMAN. While there are no documents to describe how to do the setup on this, We did find some notes. But those are with oracle 7.0. Is someone on the group has this kind of setup? If so, Can you update me on the process?? Any Pros and Cons to go with this? Thanx for all responses Srikanth VS [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Valuthur, Srikanth INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
-Original Message-
> What do we want to know?
> 1. Are we on the write way, (do you have any other idea)?
Yes, you're on the right track.
> 2. Does that concept have some misses?
This concept does not give you the fault tolerance. It will only make
it easy for you to have an up-to-date reporting database. For the fault
tolerance,
you will have to use parallel server option.
> 3. What is your opinion and experience on that subject?
> 4. What is your experience with implementing and administering of such
> configuration?
> 5. Could you explain us basic concept of starting up of target database
> through SRDF and
> Time Finder. Sales people from EMC2 told us that some APIs are used for
> this purpose.
> Do we have to customize it, or write some programs or scripts?
> 6. Do you use some special monitoring tools?
SRDF is, essentially, a very fast backup facility which copies "disk->disk".
We don't
use the so called "media layer" with SRDF, which means that we put the
database in the
backup mode ("alter tablespace ... begin backup;"), SRDF it to another
array and do the
full database recovery. It is an automated script and the database
synchronization (copy &
recovery) is done in 1.5 hours. We don't use time finder. As for the
monitoring tools,
our sysadmins use a tool from EMC that shows them potentially "hot" disk
drives.
Data loss never happens, because of the configuration (redundant
everything).
> 7. Could you describe us your step-by-step scenario for starting up target
> system in case of primary sitefailure, and specially if your
target
> site at the time of the failure is open for reporting.
> 8. What if:
> - primary site server fails (loosig data in cache)?
You MUST use Oracle Parallel Server if you want to protect yourself from
thedata loss.
> - EMC storrage system fails ?
Hot swappable, redundant everything system which can tolerate any single
point of failure,
combined with the under 2 hours of response time 24x7, 365 days a year will
take care of that.
> - Network fails?
Redundant network connections with steep penalties if the provider does not
meet it's
obligations.
> - Corrupted blocks (Oracle side)?
You have to do database recovery, but that does not happen very frequently.
> 9. Have you ever experienced failure and downtime?
Yes, the cause was the application software, and in one case a bad oracle
bug which
allowed duplicate data in the primary key (under special conditions and on
OPS)
> 10. After all, do you recommend us such configuration?
Yes, I would, but keep in mind that prices for such configurations
are very high (> $5,000,000)
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Gogala, Mladen
INET: [EMAIL PROTECTED]
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San Diego, California-- Public Internet access / Mailing Lists
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to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
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also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
BCV = Business Continuation Volume Geez, this was obviously the work of some marketing drone so it would sound impressive to clueless clients. I know the concept, but have never heard it called by his acronym. Thanks all fro the explanations. Jared On Thu, 22 Mar 2001, Tim Sawmiller wrote: > So, Jared, are you auditioning for Louis Rukeyser's job? 8-) > > Lisa can probably explain better, but as I recall, BCV is something Backup Control >Volumes. It's a third mirror that can be split off from the other two and used for a >cold backup (e.g. shutdown Oracle database, split BCVs from the mirror set, restart >Oracle (this takes like 5 minutes or less); run cold backup at your leisure). Then >they can be re-attached to the mirrored disks at any time and the BCVs are >synchronized with the mirrored disks automagically. Right Lisa? > > >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> > > Ok, does someone one to define SRDF and BCV for > those of us that don't have any idea what you're > talking about? > > Jared > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Just make sure you have a mirror on each side of the fault line... >>> [EMAIL PROTECTED] 03/22/01 10:56AM >>> I believe fiber channel makes this possible because it allow drives to be separated by about 60 kilometers (or is it 100?) without having any latency problems. I read somewhere that some shops have been able to roll their own SRDF/BCV-like triple mirror solution without having to buy huge, expensive 3rd party "boxed" solutions. Has anyone done this or know of anyone else who has? I'd like to have some mirrored drives on opposite sides of the San Francisco Bay... of course this won't help me in a massive earthquake where the entire state of California slips into the Pacific Ocean. ;-) Steve Orr -Original Message- Carmichael Sent: Thursday, March 22, 2001 5:36 AM To: Multiple recipients of list ORACLE-L Tim, That sounds about right. SRDF is something like Symmetrix Remote Data Facility and is basically mirrored disks at a remote site. Rachel >From: "Tim Sawmiller" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> >Subject: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby >Date: Thu, 22 Mar 2001 04:30:26 -0800 > >So, Jared, are you auditioning for Louis Rukeyser's job? 8-) > >Lisa can probably explain better, but as I recall, BCV is something Backup >Control Volumes. It's a third mirror that can be split off from the other >two and used for a cold backup (e.g. shutdown Oracle database, split BCVs >from the mirror set, restart Oracle (this takes like 5 minutes or less); >run cold backup at your leisure). Then they can be re-attached to the >mirrored disks at any time and the BCVs are synchronized with the mirrored >disks automagically. Right Lisa? > > >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> > >Ok, does someone one to define SRDF and BCV for >those of us that don't have any idea what you're >talking about? > >Jared > >On Wed, 21 Mar 2001, Koivu, Lisa wrote: > > > Hi Yosi, how are you? > > > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > > question but I can tell you that we have BCV's implemented here. We use > > them for backup and recovery (and it's extremely slick and fast, let me >tell > > you! Worth every penny we paid) However you can also mount the BCV's >and > > access the data. Honestly I don't see any reason why I wouldn't be able >to > > install Oracle on this server and open up a read-only database on the >BCV's. > > Except for maybe the fact that my employer practically chokes when >Oracle > > quotes pricing. > > > > We are running HP/UX. If you want more specific info, email me directly >and > > I'll be glad to answer questions. > > > > Have a great day... > > > > Lisa Rutland Koivu > > Oracle Database Administrator > >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- >Author: > INET: [EMAIL PROTECTED] > >Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 >San Diego, California-- Public Internet access / Mailing Lists > >To REMOVE yourself from this mailing list, send an E-Mail message >to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in >the message BODY, include a line containing: UNSUB ORACLE-L >(or the name of mailing list you want to be removed from). You may >also send the HELP command for other information (like subscribing). > >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- >Author: Tim Sawmiller > INET: [EMAIL PROTECTED] > >Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 >San Diego, California-- Public Internet access / Mailing Lists > >To REMOVE yourself from this mailing list, send an E-Mail message >to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in >the message BODY, include a line containing: UNSUB ORACLE-L >(or the name of mailing list you want to be removed from). You may >also send the HELP command for other information (like subscribing). _ Get your FREE download of MSN Explorer at http://explorer.msn.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists -
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
I believe fiber channel makes this possible because it allow drives to be separated by about 60 kilometers (or is it 100?) without having any latency problems. I read somewhere that some shops have been able to roll their own SRDF/BCV-like triple mirror solution without having to buy huge, expensive 3rd party "boxed" solutions. Has anyone done this or know of anyone else who has? I'd like to have some mirrored drives on opposite sides of the San Francisco Bay... of course this won't help me in a massive earthquake where the entire state of California slips into the Pacific Ocean. ;-) Steve Orr -Original Message- Carmichael Sent: Thursday, March 22, 2001 5:36 AM To: Multiple recipients of list ORACLE-L Tim, That sounds about right. SRDF is something like Symmetrix Remote Data Facility and is basically mirrored disks at a remote site. Rachel >From: "Tim Sawmiller" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> >Subject: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby >Date: Thu, 22 Mar 2001 04:30:26 -0800 > >So, Jared, are you auditioning for Louis Rukeyser's job? 8-) > >Lisa can probably explain better, but as I recall, BCV is something Backup >Control Volumes. It's a third mirror that can be split off from the other >two and used for a cold backup (e.g. shutdown Oracle database, split BCVs >from the mirror set, restart Oracle (this takes like 5 minutes or less); >run cold backup at your leisure). Then they can be re-attached to the >mirrored disks at any time and the BCVs are synchronized with the mirrored >disks automagically. Right Lisa? > > >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> > >Ok, does someone one to define SRDF and BCV for >those of us that don't have any idea what you're >talking about? > >Jared > >On Wed, 21 Mar 2001, Koivu, Lisa wrote: > > > Hi Yosi, how are you? > > > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > > question but I can tell you that we have BCV's implemented here. We use > > them for backup and recovery (and it's extremely slick and fast, let me >tell > > you! Worth every penny we paid) However you can also mount the BCV's >and > > access the data. Honestly I don't see any reason why I wouldn't be able >to > > install Oracle on this server and open up a read-only database on the >BCV's. > > Except for maybe the fact that my employer practically chokes when >Oracle > > quotes pricing. > > > > We are running HP/UX. If you want more specific info, email me directly >and > > I'll be glad to answer questions. > > > > Have a great day... > > > > Lisa Rutland Koivu > > Oracle Database Administrator > >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- >Author: > INET: [EMAIL PROTECTED] > >Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 >San Diego, California-- Public Internet access / Mailing Lists > >To REMOVE yourself from this mailing list, send an E-Mail message >to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in >the message BODY, include a line containing: UNSUB ORACLE-L >(or the name of mailing list you want to be removed from). You may >also send the HELP command for other information (like subscribing). > >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- >Author: Tim Sawmiller > INET: [EMAIL PROTECTED] > >Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 >San Diego, California-- Public Internet access / Mailing Lists > >To REMOVE yourself from this mailing list, send an E-Mail message >to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in >the message BODY, include a line containing: UNSUB ORACLE-L >(or the name of mailing list you want to be removed from). You may >also send the HELP command for other information (like subscribing). _ Get your FREE download of MSN Explorer at http://explorer.msn.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PR
Re: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Yeah, that's it, Business Continuation Volume. The client site I was at was going to use that for a daily cold backup, and leave it disconnected for use as a "reporting" database. It was going to be a poor man's data warehouse. Not the best idea, but a method to at least get started. The plan was to re-synch in the early evening, then do the whole shutdown, detach, startup, backup process again. I do remember one flaw in the plan was that you couldn't have a second database instance on the same server accessing the BCVs because the disk addressing would conflict with the mirrored disks, so they needed a second, smaller server to mount the BCVs to for handling the second reporting database. The server involved was IBM AIX. I believe HP has the same limitation. Dunno if the limitation is server based or if it's a general disk addressing issue. >>> [EMAIL PROTECTED] 03/22/01 08:15AM >>> [EMAIL PROTECTED] wrote: > > Ok, does someone one to define SRDF and BCV for > those of us that don't have any idea what you're > talking about? > > Jared BCV stands for Business Continuation Volume, in essence an extra mirror of a volume that can be snapped off to use for backup or reporting uses when mounted on another server. [eeep... i just answered a question from the List God(tm);-)] -- Bill Thater Certifiable ORACLE DBA Telergy, Inc [EMAIL PROTECTED] You gotta program like you don't need the money, You gotta compile like you'll never get hurt, You gotta run like there's nobody watching, It's gotta come from the heart if you want it to work! -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Thater, William INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tim Sawmiller INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Title: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby In not so many words, you are right, Tim... 'cept we don't shut down, we do hot backup. -Original Message- From: Tim Sawmiller [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 22, 2001 7:30 AM To: Multiple recipients of list ORACLE-L Subject: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby So, Jared, are you auditioning for Louis Rukeyser's job? 8-) Lisa can probably explain better, but as I recall, BCV is something Backup Control Volumes. It's a third mirror that can be split off from the other two and used for a cold backup (e.g. shutdown Oracle database, split BCVs from the mirror set, restart Oracle (this takes like 5 minutes or less); run cold backup at your leisure). Then they can be re-attached to the mirrored disks at any time and the BCVs are synchronized with the mirrored disks automagically. Right Lisa? >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> Ok, does someone one to define SRDF and BCV for those of us that don't have any idea what you're talking about? Jared On Wed, 21 Mar 2001, Koivu, Lisa wrote: > Hi Yosi, how are you? > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > question but I can tell you that we have BCV's implemented here. We use > them for backup and recovery (and it's extremely slick and fast, let me tell > you! Worth every penny we paid) However you can also mount the BCV's and > access the data. Honestly I don't see any reason why I wouldn't be able to > install Oracle on this server and open up a read-only database on the BCV's. > Except for maybe the fact that my employer practically chokes when Oracle > quotes pricing. > > We are running HP/UX. If you want more specific info, email me directly and > I'll be glad to answer questions. > > Have a great day... > > Lisa Rutland Koivu > Oracle Database Administrator -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tim Sawmiller INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
[EMAIL PROTECTED] wrote: > > Ok, does someone one to define SRDF and BCV for > those of us that don't have any idea what you're > talking about? > > Jared BCV stands for Business Continuation Volume, in essence an extra mirror of a volume that can be snapped off to use for backup or reporting uses when mounted on another server. [eeep... i just answered a question from the List God(tm);-)] -- Bill Thater Certifiable ORACLE DBA Telergy, Inc [EMAIL PROTECTED] You gotta program like you don't need the money, You gotta compile like you'll never get hurt, You gotta run like there's nobody watching, It's gotta come from the heart if you want it to work! -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Thater, William INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
List hi! I have a "few" questions on thet subject: What we need: Primary site - 24x7 OLTP database access Backup site - a. Failover site b. Disaster & Recovery site c. Reporting database - In case of loosing funcionality one of the site takes the production on itself - The Hardware and Software at the Bakup site should be used for production a. Aplication servers on all sites work in load balancing (end users should not be aware that they are working at the other site). b. Database server on backup site should be used for reporting - REPORTS are created through our applications (possibilly writing records in some temporary tables) - Stopping of production because of all types of changes (upgrade of RDBMS, changes in structure of the tables, ...) must be minimal, preferable none! Idea: Through the combination of Symmetrix EMC2 disks, SRDF (Symmetrix Remote Data Facilities) and Time Finder (EMC2 software) make up-to-date reporting Oracle instance on target (backup) site. What do we want to know? 1. Are we on the write way, (do you have any other idea)? 2. Does that concept have some misses? 3. What is your opinion and experience on that subject? 4. What is your experience with implementing and administering of such configuration? 5. Could you explain us basic concept of starting up of target database through SRDF and Time Finder. Sales people from EMC2 told us that some APIs are used for this purpose. Do we have to customize it, or write some programs or scripts? 6. Do you use some special monitoring tools? 7. Could you describe us your step-by-step scenario for starting up target system in case of primary sitefailure, and specially if your target site at the time of the failure is open for reporting. 8. What if: - primary site server fails (loosig data in cache)? - EMC storrage system fails ? - Network fails? - Corrupted blocks (Oracle side)? 9. Have you ever experienced failure and downtime? 10. After all, do you recommend us such configuration? TIA, Sonja -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?windows-1250?Q?Sonja_=8Aehovi=E6?= INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
FYI - SRDF: http://www.emc.com/products/networking/srdf.jsp BCV: Business Continuance Volumes uses Timefinder Software, a must for every EMC installation! http://www.emc.com/products/software/timefinder.jsp +++ Gene Sais Database/Systems Administrator COCC Automation Services Department 205 North Dixie Highway, Room 2.2209 West Palm Beach, FL 33401 C: 561.662.2018 [#3] F: 561.355.2600 P: 561.355.3467 E: [EMAIL PROTECTED] +++ >>> [EMAIL PROTECTED] 03/22/01 07:30AM >>> So, Jared, are you auditioning for Louis Rukeyser's job? 8-) Lisa can probably explain better, but as I recall, BCV is something Backup Control Volumes. It's a third mirror that can be split off from the other two and used for a cold backup (e.g. shutdown Oracle database, split BCVs from the mirror set, restart Oracle (this takes like 5 minutes or less); run cold backup at your leisure). Then they can be re-attached to the mirrored disks at any time and the BCVs are synchronized with the mirrored disks automagically. Right Lisa? >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> Ok, does someone one to define SRDF and BCV for those of us that don't have any idea what you're talking about? Jared On Wed, 21 Mar 2001, Koivu, Lisa wrote: > Hi Yosi, how are you? > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > question but I can tell you that we have BCV's implemented here. We use > them for backup and recovery (and it's extremely slick and fast, let me tell > you! Worth every penny we paid) However you can also mount the BCV's and > access the data. Honestly I don't see any reason why I wouldn't be able to > install Oracle on this server and open up a read-only database on the BCV's. > Except for maybe the fact that my employer practically chokes when Oracle > quotes pricing. > > We are running HP/UX. If you want more specific info, email me directly and > I'll be glad to answer questions. > > Have a great day... > > Lisa Rutland Koivu > Oracle Database Administrator -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tim Sawmiller INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gene Sais INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Tim, That sounds about right. SRDF is something like Symmetrix Remote Data Facility and is basically mirrored disks at a remote site. Rachel >From: "Tim Sawmiller" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> >Subject: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby >Date: Thu, 22 Mar 2001 04:30:26 -0800 > >So, Jared, are you auditioning for Louis Rukeyser's job? 8-) > >Lisa can probably explain better, but as I recall, BCV is something Backup >Control Volumes. It's a third mirror that can be split off from the other >two and used for a cold backup (e.g. shutdown Oracle database, split BCVs >from the mirror set, restart Oracle (this takes like 5 minutes or less); >run cold backup at your leisure). Then they can be re-attached to the >mirrored disks at any time and the BCVs are synchronized with the mirrored >disks automagically. Right Lisa? > > >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> > >Ok, does someone one to define SRDF and BCV for >those of us that don't have any idea what you're >talking about? > >Jared > >On Wed, 21 Mar 2001, Koivu, Lisa wrote: > > > Hi Yosi, how are you? > > > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > > question but I can tell you that we have BCV's implemented here. We use > > them for backup and recovery (and it's extremely slick and fast, let me >tell > > you! Worth every penny we paid) However you can also mount the BCV's >and > > access the data. Honestly I don't see any reason why I wouldn't be able >to > > install Oracle on this server and open up a read-only database on the >BCV's. > > Except for maybe the fact that my employer practically chokes when >Oracle > > quotes pricing. > > > > We are running HP/UX. If you want more specific info, email me directly >and > > I'll be glad to answer questions. > > > > Have a great day... > > > > Lisa Rutland Koivu > > Oracle Database Administrator > >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- >Author: > INET: [EMAIL PROTECTED] > >Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 >San Diego, California-- Public Internet access / Mailing Lists > >To REMOVE yourself from this mailing list, send an E-Mail message >to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in >the message BODY, include a line containing: UNSUB ORACLE-L >(or the name of mailing list you want to be removed from). You may >also send the HELP command for other information (like subscribing). > >-- >Please see the official ORACLE-L FAQ: http://www.orafaq.com >-- >Author: Tim Sawmiller > INET: [EMAIL PROTECTED] > >Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 >San Diego, California-- Public Internet access / Mailing Lists > >To REMOVE yourself from this mailing list, send an E-Mail message >to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in >the message BODY, include a line containing: UNSUB ORACLE-L >(or the name of mailing list you want to be removed from). You may >also send the HELP command for other information (like subscribing). _ Get your FREE download of MSN Explorer at http://explorer.msn.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Rachel Carmichael INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Title: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby I am sorry Jared... BCV = Business Continuous Volume. Basically a third mirror that can be split off and manipulated. This means you will never, ever, ever lose a disk. Ever, ever. EMC knows about any problems long before it gets to the point where you lose a disk, and their support is fantastic. BCVs are NOT a hot standby database. Recovering utilizing BCV's is more like recovering from a hot backup to the point in time when the backup was taken. I suppose you could manipulate them so they are like a hot standby (always re-syncing) but I don't know what kind of overhead that would impose. SRDF = Symmetrix Remote Data Facility. Remote mirroring for disaster recovery. I cannot sing the praises of EMC enough... Lisa -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 21, 2001 11:20 PM To: Koivu, Lisa Cc: Multiple recipients of list ORACLE-L Subject: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby Ok, does someone one to define SRDF and BCV for those of us that don't have any idea what you're talking about? Jared On Wed, 21 Mar 2001, Koivu, Lisa wrote: > Hi Yosi, how are you? > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > question but I can tell you that we have BCV's implemented here. We use > them for backup and recovery (and it's extremely slick and fast, let me tell > you! Worth every penny we paid) However you can also mount the BCV's and > access the data. Honestly I don't see any reason why I wouldn't be able to > install Oracle on this server and open up a read-only database on the BCV's. > Except for maybe the fact that my employer practically chokes when Oracle > quotes pricing. > > We are running HP/UX. If you want more specific info, email me directly and > I'll be glad to answer questions. > > Have a great day... > > Lisa Rutland Koivu > Oracle Database Administrator
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
So, Jared, are you auditioning for Louis Rukeyser's job? 8-) Lisa can probably explain better, but as I recall, BCV is something Backup Control Volumes. It's a third mirror that can be split off from the other two and used for a cold backup (e.g. shutdown Oracle database, split BCVs from the mirror set, restart Oracle (this takes like 5 minutes or less); run cold backup at your leisure). Then they can be re-attached to the mirrored disks at any time and the BCVs are synchronized with the mirrored disks automagically. Right Lisa? >>> [EMAIL PROTECTED] 03/21/01 11:17PM >>> Ok, does someone one to define SRDF and BCV for those of us that don't have any idea what you're talking about? Jared On Wed, 21 Mar 2001, Koivu, Lisa wrote: > Hi Yosi, how are you? > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > question but I can tell you that we have BCV's implemented here. We use > them for backup and recovery (and it's extremely slick and fast, let me tell > you! Worth every penny we paid) However you can also mount the BCV's and > access the data. Honestly I don't see any reason why I wouldn't be able to > install Oracle on this server and open up a read-only database on the BCV's. > Except for maybe the fact that my employer practically chokes when Oracle > quotes pricing. > > We are running HP/UX. If you want more specific info, email me directly and > I'll be glad to answer questions. > > Have a great day... > > Lisa Rutland Koivu > Oracle Database Administrator -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tim Sawmiller INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Ok, does someone one to define SRDF and BCV for those of us that don't have any idea what you're talking about? Jared On Wed, 21 Mar 2001, Koivu, Lisa wrote: > Hi Yosi, how are you? > > I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF > question but I can tell you that we have BCV's implemented here. We use > them for backup and recovery (and it's extremely slick and fast, let me tell > you! Worth every penny we paid) However you can also mount the BCV's and > access the data. Honestly I don't see any reason why I wouldn't be able to > install Oracle on this server and open up a read-only database on the BCV's. > Except for maybe the fact that my employer practically chokes when Oracle > quotes pricing. > > We are running HP/UX. If you want more specific info, email me directly and > I'll be glad to answer questions. > > Have a great day... > > Lisa Rutland Koivu > Oracle Database Administrator -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Yosi, Hot standby db protects you from the data corruption. Any kind of mirroring does not - it's just a copy. HTH, Michael Netrusov, www.atelo.com - Original Message - To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Wednesday, March 21, 2001 06:10 > Hi All, > > Can anyone give me a quick (free!) lesson on the concepts > behind timefinder? How does this differ from their standard > SRDF which (to my understanding) is to split the mirror and > back it up. > > Or is it that they add their BCV stuff to SRDF so you can > access the data while the mirror is split? Then, is it like > a Hot Standby DB? > > (We used to get something in high school that was some sort > of mixture between fish and potatoes, and we could never > figure out if it was fish or if it was potatoes, or both, > or neither. Somehow, this is reminding me of that.) > > Thanks loads, > > Yosi > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: > INET: [EMAIL PROTECTED] > > Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California-- Public Internet access / Mailing Lists > > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Michael Netrusov INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Re: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Hi For each physical device a BCV is associated. This is at a physical level rather than at logical level. Timefinder is the product which synchronizes these devices and bcvs. Each of these devices and BCVs has a bit map track table to keep track of the disk tracks. This bit map indicates whether a particular disk track has changed or not after the last BCV synchronization operation. During BCV synchronization, timefinder doesn't do dumb copy all the data from primary to BCV. Instead it uses the bit map of disk tracks and copies only the disk tracks that are changed. In a typical VLDB only few percentage of the database changes every day and hence the number of tracks changed are very minimal between backups. Hence the synch process is much faster than regular OS based synchronization mechanism. Not only the backup is faster, also the recovery is faster since only the tracks changed need to be copied from the BCVs to the primary disks. SRDF is the product to keep the primary and secondary symmetrix unit in synch using SRDF links, mostly for disaster/site recovery operations. If you set up two sym units to be primary and secondary then all the writes to the primary are propagated to the secondary (synchronously or asynchronously depending upon the setup) and they are kept in synch. For example, if you have primary database in one symmetrix unit and the secondary database in the second symmetrix unit, then since every write to the redo log files are propagated, you could activate the standby database without any data loss (or very minimal loss in rare cases). All these operations are done without any host involvement. You could set up this SRDF writes such that host write system calls will succeed only after the secondary SRDF write confirms the receipt of the data to the primary. But that means performance hit. Hope this helps!! Thanks Riyaj "Re-yas" Shamsudeen Certified Oracle DBA i2 technologies www.i2.com " These are my opinions. Use at your risk" Yosi@comhill. com To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Sent by: cc: root@fatcity.Subject: EMC TimeFinder, and EMC TimeFinder vs Hot Standby com 03/21/01 05:10 AM Please respond to ORACLE-L Hi All, Can anyone give me a quick (free!) lesson on the concepts behind timefinder? How does this differ from their standard SRDF which (to my understanding) is to split the mirror and back it up. Or is it that they add their BCV stuff to SRDF so you can access the data while the mirror is split? Then, is it like a Hot Standby DB? (We used to get something in high school that was some sort of mixture between fish and potatoes, and we could never figure out if it was fish or if it was potatoes, or both, or neither. Somehow, this is reminding me of that.) Thanks loads, Yosi -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACL
RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Title: RE: EMC TimeFinder, and EMC TimeFinder vs Hot Standby Hi Yosi, how are you? I can't exactly clarify your fish vs. potatoes, er, timefinder vs. SRDF question but I can tell you that we have BCV's implemented here. We use them for backup and recovery (and it's extremely slick and fast, let me tell you! Worth every penny we paid) However you can also mount the BCV's and access the data. Honestly I don't see any reason why I wouldn't be able to install Oracle on this server and open up a read-only database on the BCV's. Except for maybe the fact that my employer practically chokes when Oracle quotes pricing. We are running HP/UX. If you want more specific info, email me directly and I'll be glad to answer questions. Have a great day... Lisa Rutland Koivu Oracle Database Administrator Qode.com 4850 North State Road 7 Suite G104 Fort Lauderdale, FL 33319 V: 954.484.3191, x174 F: 954.484.2933 C: 954.658.5849 http://www.qode.com "The information contained herein does not express the opinion or position of Qode.com and cannot be attributed to or made binding upon Qode.com." -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 21, 2001 6:10 AM To: Multiple recipients of list ORACLE-L Subject: EMC TimeFinder, and EMC TimeFinder vs Hot Standby Hi All, Can anyone give me a quick (free!) lesson on the concepts behind timefinder? How does this differ from their standard SRDF which (to my understanding) is to split the mirror and back it up. Or is it that they add their BCV stuff to SRDF so you can access the data while the mirror is split? Then, is it like a Hot Standby DB? (We used to get something in high school that was some sort of mixture between fish and potatoes, and we could never figure out if it was fish or if it was potatoes, or both, or neither. Somehow, this is reminding me of that.) Thanks loads, Yosi -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
EMC TimeFinder, and EMC TimeFinder vs Hot Standby
Hi All, Can anyone give me a quick (free!) lesson on the concepts behind timefinder? How does this differ from their standard SRDF which (to my understanding) is to split the mirror and back it up. Or is it that they add their BCV stuff to SRDF so you can access the data while the mirror is split? Then, is it like a Hot Standby DB? (We used to get something in high school that was some sort of mixture between fish and potatoes, and we could never figure out if it was fish or if it was potatoes, or both, or neither. Somehow, this is reminding me of that.) Thanks loads, Yosi -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051 San Diego, California-- Public Internet access / Mailing Lists To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
