I would think software raid would be quite inappropriate considering
postgres when it is working is taking a fair amount of CPU as would
software RAID. Does anyone know if this is really the case ?
Dave
On 25-Sep-05, at 6:17 AM, Michael Ben-Nes wrote:
I would consider Software Raid
PFC wrote:
Hello fellow Postgresql'ers.
I've been stumbled on this RAID card which looks nice. It is a
PCI-X SATA Raid card with 6 channels, and does RAID 0,1,5,10,50.
It is a HP card with an Adaptec chip on it, and 64 MB cache.
HP Part # : 372953-B21
Adaptec Part # : AAR-2610SA/64MB/HP
There' even a picture :
http://megbytes.free.fr/Sata/DSC05970.JPG
I know it isn't as good as a full SCSI system. I just want to
know if some of you have had experiences with these, and if this
cards belong to the "slower than no RAID" camp, like some DELL
card we often see mentioned here, or to the "decent performance
for the price" camp. It is to run on a Linux.
Thanks in advance for your time and information.
---------------------------(end of
broadcast)---------------------------
TIP 4: Have you searched our list archives?
http://archives.postgresql.org
--
--------------------------
Canaan Surfing Ltd.
Internet Service Providers
Ben-Nes Michael - Manager
Tel: 972-4-6991122
Cel: 972-52-8555757
Fax: 972-4-6990098
http://www.canaan.net.il
--------------------------
---------------------------(end of
broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
---------------------------(end of broadcast)---------------------------
TIP 2: Don't 'kill -9' the postmaster