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Re: Explained by known hardware failures, or keep looking?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Explained by known hardware failures, or keep looking?
Date: 2007-06-18 20:25:24
Message-ID: 4713.1182198324@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-admin
"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
> Could all of this be reasonably explained by the controller failure and/or =
> the subsequent abrupt power loss, or should I be looking for another cause?=
>   Personally, as I look at this, I'm suspicious that either the controller =
> didn't persist dirty pages in the June 14th failure

That's what it looks like to me --- it's hard to tell if the hardware or
the filesystem is at fault, but one way or another some pages that were
supposedly securely down on disk were wiped to zeroes.  You should
probably review whether the hardware is correctly reporting write-complete.

			regards, tom lane

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Subject: Re: Explained by known hardware failures, or keep looking?
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