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.

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