| From: | sumbry(at)sumbry(dot)com |
|---|---|
| To: | Adam Witney <awitney(at)sghms(dot)ac(dot)uk> |
| Cc: | pgsql-admin <pgsql-admin(at)postgresql(dot)org> |
| Subject: | Re: Postgresql on software RAID |
| Date: | 2003-12-16 20:01:59 |
| Message-ID: | Pine.BSF.4.55.0312161156560.96181@renegade.pfksound.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-admin |
> 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?
I use Postgres w/Vinum setup to mirror 2 9gig SCSI Cheetahs and I have
no complaints. I bang on the db quite a bit (moderately busy site and
tons of data analysis) and performance is great. Ultimately I am going to
slap a hardware RAID card in there (need the immediate failover) but right
now software wise performance is great. I'd probably only recommend
doing mirroring in software though, RAID-5 is going to eat up alot more
CPU and disk writes.
--
"Don't 'kill -9' the SYSVMSG"
sumbry(at)sumbry(dot)com
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