Re: RAID card recommendation

Jochen Erwied wrote:
> - Promise Technology Supertrak ES4650 + additional BBU
> - Adaptec RAID 5405 SGL/256 SATA/SAS + additional BBU
> - Adaptec RAID 5405Z SGL/512 SATA/SAS
>
I've never seen a Promise controller that had a Linux driver you would
want to rely on under any circumstances. Adaptec used to have seriously
bad Linux drivers too. I've gotten the impression they've cleaned up
their act considerably the last few years, but they've been on my list
of hardware to shun for so long I haven't bothered investigating.
Easier to just buy from a company that has always cared about good Linux
support, like 3ware. In any case, driver quality is what you want to
research before purchasing any of these; doesn't matter how fast the
cards are if they crash or corrupt your data.

What I like to do is look at what companies who sell high-quality
production servers with Linux preinstalled and see what hardware they
include. You can find a list of vendors people here like at
http://wiki.postgresql.org/wiki/SCSI_vs._IDE/SATA_Disks#Helpful_vendors_of_SATA_RAID_systems

--
Greg Smith 2ndQuadrant Baltimore, MD
PostgreSQL Training, Services and Support
greg(at)2ndQuadrant(dot)com www.2ndQuadrant.com