On Tue, Apr 13, 2010 at 1:14 PM, Ryan Manikowski <ryan at devision.us> wrote: > On 4/13/2010 1:05 PM, Boris Epstein wrote: > > Hello listmates, > > I would like to build a 12-15 TB RAID 5 data server to run under > ContOS. Any recommendations as far as hardware, configuration, etc? > > Thanks. > > Boris. > _______________________________________________ > CentOS mailing listCentOS at centos.orghttp://lists.centos.org/mailman/listinfo/centos > > > Chassis - CSE-836A-R1200B Supermicro SC836 A-R1200B - Rack-mountable - 3U - > SATA/SAS - hot-swap - power supply 1200 Watt > > RAID Card - 3ware 9650SE-16ML-SGL 9650SE-16ML-SGL RAID 0/1/5/6/10/50 16CH > SATA II PCIE 256MB ECC DDR2 - PCI Express x8 - Up to 300MBps - 4 x SATA x4 > Serial ATA/300 - Serial ATA > > BBU Module for RAID card - 3ware BBU-MODULE-03 > > > Pick the cpu(s) and motherboard to fit the chassis. Obviously go with ECC > ram and ONLY enterprise grade hard drives. To ensure compatibility check > with 3ware to see which drives they recommend. Areca RAID cards will get you > a little better performance but the module for the 9650SE series of 3ware > cards is included with the Centos kernel. Getting the Areca driver going is > a bit more work, but nothing that would be considered a huge hurdle for a > competent sysadmin. Also, if you're looking for advice on Areca products > call their Tekram contact in the USA. Their other distributors have been > less than stellar on answering pre-sales questions. > > > -- > Ryan Manikowski > > > ]] Devision Media Services LLC [[ > www.devision.us > ryan at devision.us | 716.771.2282 > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > Ryan's hardware recommendations are good. But I wouldn't run a RAID5 volume that large, software or hardware. It's just too risky as rebuilds will take days and the chances of hitting a non recoverable read error would be near 100% on a volume that size. Either run multiple smaller RAID5's and use LVM to manage the volumes which the OS will use or choose a better RAID layout. RAID6 or RAID10 are much better choices these days. -- David -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100413/96314217/attachment-0005.html>