Re: [CentOS] Dell Equallogic
We use a pair for production and DR. Email me off list and I would be glad to discuss. Andrew --Original Message-- From: Eugene Vilensky Sender: centos-boun...@centos.org To: CentOS mailing list ReplyTo: CentOS mailing list Subject: [CentOS] Dell Equallogic Sent: Oct 12, 2009 8:04 PM Hi List, Does anyone here use Dell Equallogic IP SAN? If so, do you have any immediate high points / low points you wouldn't mind discussing on- or off-list ? Thanks. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: Web "Project" type software
> -Original Message- > Subject: [CentOS] OT: Web "Project" type software > > Sorry for the OT... I'm looking for some software to fill a > fairly specific set of requirements. I'm not necessarily > looking for project software, but it seems like the closest > to match what I need. I'm also not tied into open source or > free. If anyone knows of any software that might fill these > requirements I would appreciate it. > > Here's what I'm looking for: > > 1) Web enabled application > 2) File storage > - need to stare a large amount of large cad files > - be able to categorize file storage (not one large list) > - keep different revisions of files with some kind of notes > - be able to search files (at least include names in a search) > 3) Task - assign and keep track of tasks (searchable) > 4) Store meeting notes and minutes (searchable) > 5) Would like to support LDAP > 6) Extension on file storage - since we'll be storing a large > files and many of our users are across a WAN we'd like to > sync/mirror the files to a few different servers. I'm not > sure how we'd control how the users get the "closest" server but > > I found dotproject on sourceforge. It fills some of the > needs, but it's file storage appears to be one large list, > doesn't appear to support LDAP, and I don't see much for searching. > > Anyone know of software that might do these things? > > Thanks, > James > Have you looked at something like Alfresco? Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] need trouble ticket system
> -Original Message- > From: centos-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of Eduardo Grosclaude > Sent: Sunday, March 29, 2009 2:54 PM > To: CentOS mailing list > Subject: Re: [CentOS] need trouble ticket system > > On Sun, Mar 29, 2009 at 3:45 AM, Dhaval Thakar > wrote: > > Hi, > > > > I need to implement trouble tracking system, > GLPI may be worth a look > > -- > Eduardo Grosclaude > Universidad Nacional del Comahue > Neuquen, Argentina We use GLPI and it works fairly well. Beyond simple trouble ticket tracking we use the asset piece to track hardware, software tracking has some difficult points, and we are starting to use the contract and financial tracking as well. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Suggestion for Server Room monitoring
> -Original Message- > From: centos-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of Sam > Sent: Monday, February 16, 2009 8:17 AM > To: CentOS mailing list > Subject: Re: [CentOS] Suggestion for Server Room monitoring > > David Hrbác wrote: > > Fajar Priyanto napsal(a): > >> Hi all, > >> I have a situation like this: > >> Our little server room is always on. It has an air > conditioning unit, > >> but barely enough. > >> So sometimes during weekend, the temperature could reach unhealthy > >> level, like 29 degree Celsius. > >> Currently, there's no personnel to monitor it 24 hours a day. > >> I'm thinking of using a tool to monitor the temperature, and then > >> send sms/email when it reaches certain threshold. > >> Anyone has an idea? Could be software based or hardware one. > >> Thank you. > > > > Hi, > > I'm successfully monitoring a lot of server rooms with serial > > thermometer like this: > > http://www.papouch.com/en/products.asp?dir=thermometers > > I had my own script to read and send alert. A few years ago > I swap to > > Cacti where is easy to read serial thermometer too. > > Regards, > > David Hrbác > > > I thought about doing something like that > > http://forums.debian.net/viewtopic.php?t=32915 > > Sam We use the WeatherGoose by IT Watchdogs and it has saved my butt two times now over 3 or 4 years. http://www.itwatchdogs.com/ We have added a couple extra external sensors (temp + airflow on the building AC, and multiple temp in various locations) to get better coverage. Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Cron daemon with better precision?
> Greetings list- > > I'm on the hunt for a cron scheduler that supports definitions to the > second. Obviously, every cron daemon supports minute/hour/etc but I have a > special application that requires finer granularity. > > I know I know... someone will say "The load will be horrendous on your > system" or "Why don't you simply schedule your cron every minute and make > up the higher precision in your application?". Unfortunately, this will > not work. I really need a cron daemon that can schedule to the second. > > All ideas/thoughts/suggestions/etc welcome. Thank you! > > Tim Nelson > Systems/Network Support > Rockbochs Inc. > (218)727-4332 x105 > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > Does the task really have to run every second or can it get kicked off and run 60 times within the minute? Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Email/GroupWare Suite
> > Hm. Zimbra does _that_ very well IMO. Supports IE+FF+Safari, > at least for the webmail-stuff. > > I'm not sure if the Open-Source version actually supports the > Outlook-stuff (we use the commercial version and I don't use > Outlook anyway...). > > I'd give Zimbra a try. It's relatively easy to setup, at > least for a demo-case where you are not interested in > customizing all the logos. > > > > > Rainer > One thing I have found interesting with Zimbra is that you can use their open source community edition and then get the outlook connector as an add-on for the users you want/need. We have a full licensed version due to the request to keep using outlook from most people. I would say their web based client is very good, but others are good too. We looked at Scalix and found it a little more complicated and complex than we were comfortable with going with. Having components that I was familiar with from prior experience in the linux world was a big help vs learning new. Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Email/GroupWare Suite
> -Original Message- > From: centos-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of Rainer Duffner > Sent: Wednesday, January 07, 2009 5:32 PM > To: CentOS mailing list > Subject: Re: [CentOS] Email/GroupWare Suite > > > Am 07.01.2009 um 22:24 schrieb Adam Tauno Williams: > > >>> You'll definitely want to look at a multi-server setup for that. > >>> Put your > >>> mail/web services on one box and database/LDAP on > another. Also, for > >>> such a large installation you may even want to look at their > >>> commercially supported editions. Last time I checked (admittedly > >>> quite a while > >>> ago) the > >>> pricing wasn't too horrendous and I've heard good things > about their > >>> support staff. > >>> We've always opted to go with the pure open source aka self- > >>> supported version but then again we're running installations with > >>> fewer than 300 users. I believe our largest installation > to date is > >>> ~100 users or so. > > > >> I would have thought that this was a small install:) > > > > Agree. If you need multi-servers for 300 hundred users something is > > just designed wrong. Unless you've got 300 intense power users. > > > > > Even then... > 300 users should fit on a desktop-class machine (provided > you've got enough RAM). > Zimbra uses Java / Jetty and thus likes to have enough RAM. > On a single server, I'd go with at least 8 GB of RAM. > Go with 64bit Linux (AMD64). > CentOS is not supported, but it seems to work nicely or now... > > > Rainer > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos My problem would be that a single machine is a single point of failure. We are looking at zimbra and using at least two machines utilizing GFS and our SAN so we can withstand a failure. We have around 75 users but I am not willing to have email down due to a single machine failing. (Btw, these would be virtual machines running on xenserver) Seeing as you are in education, if you are looking to actually pay for licensing a product and are actually interested in Zimbra, take a look at their hosted model. It is only for educational institutions right now (not that I know if they will make the offering more widely available) and may fit the bill even more by not having to manage the hardware. My biggest concern is the long term viability of zimbra with the possibility of MicroHoo or someone else picking up Yahoo in the future. I don't want to start something with that one, but for a business this is definitely a concern. I believe some of this has been addressed in their licensing language and there is always the the GPL version which would probably survive for at least a short while. Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Email/GroupWare Suite
> -Original Message- > From: centos-boun...@centos.org > [mailto:centos-boun...@centos.org] On Behalf Of Bo Lynch > Sent: Wednesday, January 07, 2009 2:56 PM > To: centos@centos.org > Subject: [CentOS] Email/GroupWare Suite > > Just wanted to get some thoughts from the list. > > We are a public k-12 school and are looking to migrate to a > groupware style system for out staff to collaborate better. > Currently we are using Squirrelmail/postfix for email. Does > anyone have any recommendations/opinions. Any input would be > greatly appreciated. > Thank you > -- > Bo Lynch > Systems Administrator > RedHat Academy Instructor > Energy Manager > Amelia County Public Schools > It depends on what features you are looking to give your users, but you may want to look at Zimbra (Zimbra.com). They have a free version and paid versions. Nice web interface, sharing of address books, calendars, and documents, etc. Please report back your findings as it may be helpful to others. Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
RE: [CentOS] HA Storage Cookbook?
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rainer Duffner Sent: Friday, November 07, 2008 4:34 AM To: CentOS mailing list Subject: Re: [CentOS] HA Storage Cookbook? Rudi Ahlers schrieb: > On Thu, Nov 6, 2008 at 9:27 PM, nate <[EMAIL PROTECTED]> wrote: > >> Gordon McLellan wrote: >> >>> Hello List, >>> >>> Can anyone recommend some sites regarding building high-availability >>> storage networks using centos (or the upstream providers brand name)? >>> I need to have approx 2-3 tb of storage available via iscsi and smb, >>> but worry about having it all on a single server. Most of the HA >>> articles I'm reading deal with application high availability, but >>> not storage. >>> >> Check out openfiler? >> >> http://www.openfiler.com/products >> >> For me I would just buy a real storage array, better reliability >> generally. Though entry level pricing is around $20k. >> >> nate >> >> ___ >> > > Hi Nate, > > In some countries those storage arrays are about 3 more expensive, so > it's cheaper to build it yourself with PC / server components. I'm > actually interested in such a setup as well, and would like to cluster > 2x machines to give a network RAID setup. What would you recommend > using? The idea is to serve to servers which will be clustered as > well, hosting web hosting Virtual Private Servers. > > If you are going the route of building your own systems vs. buying a true filer you may want to look at something like cleversafe.org. It is intended for globally diverse storage, but I don't see why you couldn't put together a system in-house. I think the minimum number of systems is 4. Andrew ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
RE: [CentOS] 10+ TB RAID experiences?
>Agreed. > >http://www.equallogic.com/products/view.aspx?id=1791 > >10.5 TB raw capasity, and can be expanded online by adding new arrays to the group. > >Linear scalability for both capasity and performance.. with automatic load balancing. just add arrays. really nice. > >-- Pasi > I believe they (EqualLogic boxes) do snapshots, replication, etc. And one of their selling points is that a lot of the features and functionality are included, not an add-on product/feature/cost. We have done the price comparisons on a number of these (about half the capacity) and they are very reasonably priced. Andrew -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
RE: [CentOS] 10+ TB RAID experiences?
We have been looking at iSCSI SANs lately and with the names you mentioned, I would recommend also looking at Equallogic. The PS400E I think gets you to about the right level of storage. DAS/NAS is a different ballgame. We are looking at SAN for virtualization purposes. Andrew -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Ehrlich Sent: Wednesday, August 22, 2007 9:56 AM To: centos@centos.org Subject: [CentOS] 10+ TB RAID experiences? I'm looking for RAID options for at least 10 TB to attach to a Dell PowerEdge 2950 running RHEL 5 64-bit Server. The system will act as a single sign-on server for XP and Linux, thus storing user's data from mounted home directories exported from the server to various workstations. It may also house a database.I'll need a storage solution starting at least 10 TB. Most of the SAS devices I've seen go up to 2 TB. Looking at the IBM System Storage devices, for example, they offer 12 TB and up. I'm not sure of the budget, so I'll discount cost for now. How good are IBM's rack RAID devices? I'm just looking at their System Storage DS4xxx line. How about EMC? Network Appliance?Clariion? Quality of unit, reliability of unit andservice and support, overall cost of ownership?Expandability? Thanks for any and all insights. Scott ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
RE: [CentOS] Multiple WAN link -- CentOS Suitability
If you are open to not using CentOS (which is wonderful), I would suggest something like pfsense. http://www.pfsense.com/ Based on M0n0wall and I think it will do what you are looking for. This would mean you would need a seperate set of hardware however. As for hardware, if you have an old machine around, it would probably work. We use WRAP boards from PC Engines and they do a great job. http://www.pcengines.ch/wrap.htm The WRAP board is being discontinued, but the new versions will be out shortly. You can still get them at Wisp-Router (http://www.wisp-router.com/itemdesc.asp?ic=WRAP%2E1E23%2F1) Hope that helps! Andrew From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Raymond M. Subasic Sent: Thursday, July 19, 2007 1:03 AM To: 'CentOS mailing list' Subject: [CentOS] Multiple WAN link -- CentOS Suitability --> My situation: I have a cable modem (COMCAST 6Mbit d/l) and am about to also have DSL (Verizon 3 Mbit d/l). I was thinking of using CentOS (4.4, 4.5, or 5??) as a router/dhcp server/firewall for my home network consisting of 3 to 6 computers at any given time. I seek the wisdom of the members of this list on the following issues: -- Is CENTOS a good direction to go? I do not mind manually configuring things or installing lots of packages, and am doing this as both a learning experience for myself and proof of concept for a customer. -- Is it possible/hard/easy/trivial to share the load between the two connections? Have either link fail and things still work correctly? -- I plan to build a box for this job - looking for general recommendations of how much horsepower (mem/disk space, etc) is required -- What are the implications of two pipes for incoming connections such as DynDNS based remote desktop or VNC, or web server, FTP, etc The basic hardware layout I see is 3 nics, 1 GB RAM, 60 GB disk space. 1 NIC for each WAN port, 1 NIC for my local net, some recent CPU. I have been browsing through the "Linux Advanced Routing & Traffic Control HOWTO," but am still not on top of how to get done what I'm looking for. I understand that there are probably products that I could buy to do this, but my preference is to do it myself. Sorry if my questions are too basic. Please feel free to tell me off if so. Thanks. rsubasic ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
