On Tue, Apr 13, 2010 at 1:14 PM, Ryan Manikowski <ryan@xxxxxxxxxxx> wrote:
Chassis - CSE-836A-R1200B Supermicro SC836 A-R1200B - Rack-mountable - 3U - SATA/SAS - hot-swap - power supply 1200 WattOn 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 list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos
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@xxxxxxxxxxx | 716.771.2282
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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
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