On 18/12/03 5:39 am, "Sean Chittenden" <[EMAIL PROTECTED]> wrote:
>> I am experimenting with a few OS's for my new hardware. I plan to have a
>> software RAID5 device for my pgsql data directory.
>>
>> I have been experimenting with FreeBSD and with Linux, does anyone have any
>> thoughts on whether vinum RAID devices are better than Linux software RAID?
>> Or vice versa... Or no difference at all? Any gotchas I should bear in mind?
>
> You have to be more specific than just software RAID... IDE software
> RAID helps with reliability, but it's murder on performance. Only one
> command can be issued at a time with IDE, so your performance of RAID
> 1 is going to be half that of just writing to a single device. SCSI
> on the other hand... SCSI is the only way to go if you're serious
> about databases. -sc
These are Dell Poweredge 1750 and 2650 servers with SCSI disks
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