Re: Filesystem benchmarking for pg 8.3.3 server - Mailing list pgsql-performance

From Ron Mayer
Subject Re: Filesystem benchmarking for pg 8.3.3 server
Date
Msg-id 48A22D72.6030306@cheapcomplexdevices.com
Whole thread Raw
In response to Re: Filesystem benchmarking for pg 8.3.3 server  ("Scott Carey" <scott@richrelevance.com>)
Responses Re: Filesystem benchmarking for pg 8.3.3 server  (david@lang.hm)
List pgsql-performance
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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