| From: | Steve Wampler <swampler(at)noao(dot)edu> |
|---|---|
| To: | Ketema Harris <ketema(at)gmail(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Running on an NFS Mounted Directory |
| Date: | 2006-04-27 02:35:42 |
| Message-ID: | 20060427023542.GA14672@weaver.tuc.noao.edu |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
On Wed, Apr 26, 2006 at 10:06:58PM -0400, Ketema Harris wrote:
> I was wondering if there were any performance issues with having a data
> directory that was an nfs mounted drive? Say like a SAN or NAS device? Has
> anyone done this before?
My understanding is that NFS is pretty poor in performance in general,
so I would expect it to be particularly bad for a DB. You might run
some (non-DB) performance tests to get a feel for how bad it might me.
(Someone once told me that NFS topped out at around 12MB/s, but I don't
know if that's really true [they were trying to sell a competitive
networked filesystem]).
In any event, you're at least limited by ethernet speeds, if not more.
--
Steve Wampler -- swampler(at)noao(dot)edu
The gods that smiled on your birth are now laughing out loud.
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