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Re: WALL on controller without battery?

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Francisco Reyes <lists(at)stringsutils(dot)com>
Cc: Alan Hodgson <ahodgson(at)simkin(dot)ca>, pgsql-performance(at)postgresql(dot)org
Subject: Re: WALL on controller without battery?
Date: 2007-07-11 19:45:29
Message-ID: 46953359.5060404@commandprompt.com (view raw or flat)
Thread:
Lists: pgsql-performance
Francisco Reyes wrote:
> Alan Hodgson writes:
> 
>> I would spring for a 4-port with a BBU, though, and then put the WAL 
>> on the drives with the OS.
> 
> The machine is already over budget. :-(
> I will check the price difference but unlikely I will get approval.

Without a BBU you are guaranteed at some point to have catastrophic 
failure unless you turn off write cache, which would then destroy your 
performance.

Joshua D. Drake


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