From: Ron Mayer <rm_pg@cheapcomplexdevices.com>
To: Scott Carey <scott@richrelevance.com>
Cc: Ron Mayer <rm_pg@cheapcomplexdevices.com>
Cc: Greg Smith <gsmith@gregsmith.com>
Cc: Henrik <henke@mac.se>
Cc: pgsql-performance@postgresql.org
Subject: Re: Filesystem benchmarking for pg 8.3.3 server
Date: Tue, 12 Aug 2008 17:40:18 -0700
Message-ID: <48A22D72.6030306@cheapcomplexdevices.com> (raw)
In-Reply-To: <a1ec7d000808121723m19b33fdk281a09434ecd5309@mail.gmail.com>
References: <32A7A76B-16CA-4CDB-AD43-973AD6A3FC7B@mac.se>
<Pine.GSO.4.64.0808081835320.21924@westnet.com>
<48A2050D.4050803@cheapcomplexdevices.com>
<a1ec7d000808121723m19b33fdk281a09434ecd5309@mail.gmail.com>
Scott Carey wrote:
> Some SATA drives were known to not flush their cache when told to.
Can you name one? The ATA commands seem pretty clear on the matter,
and ISTM most of the reports of these issues came from before
Linux had write-barrier support.
I've yet to hear of a drive with the problem; though no doubt there
are some cheap RAID controllers somewhere that expect you to disable
the drive caches.
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To: pgsql-performance@postgresql.org
Cc: rm_pg@cheapcomplexdevices.com, scott@richrelevance.com, gsmith@gregsmith.com, henke@mac.se
Subject: Re: Filesystem benchmarking for pg 8.3.3 server
In-Reply-To: <48A22D72.6030306@cheapcomplexdevices.com>
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