Re: ZFS & disk cache

From: Jasen Betts <jasen(at)xnet(dot)co(dot)nz>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: ZFS & disk cache
Date: 2009-06-01 11:06:24
Message-ID: h00cng$pao$1@reversiblemaps.ath.cx
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On 2009-06-01, Scara Maccai <m_lists(at)yahoo(dot)it> wrote:
>
> "The Solaris ZFS file system is safe with disk write-cache enabled because it issues its own disk cache flush commands"

> Could someone explain?

this means ZFS cofigured as described is suitable for the postgres
data (and *log) directories

> would that mean that I checking the disk cache with "format -e" on Solaris is not needed if I use ZFS????

you'd have to ask SUN about how well ZFS wouls handle that.

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