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Re: Two hard drives --- what to do with them?

Bruno Wolff III <bruno@wolff.to>

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From: Bruno Wolff III <bruno@wolff.to>
To: Shane Ambler <pgsql@Sheeky.Biz>
Cc: Peter Kovacs <maxottovonstirlitz@gmail.com>, Jeff Davis <pgsql@j-davis.com>, Tom Lane <tgl@sss.pgh.pa.us>, Carlos Moreno <moreno_pg@mochima.com>, pgsql-performance@postgresql.org
Date: 2007-03-01T03:35:21Z
Lists: pgsql-performance 
On Wed, Feb 28, 2007 at 05:21:41 +1030,
  Shane Ambler <pgsql@Sheeky.Biz> wrote:
> 
> The difference between SCSI and IDE/SATA in this case is a lot if not 
> all IDE/SATA drives tell you that the cache is disabled when you ask it 
> to but they either don't actually disable it or they don't retain the 
> setting so you get caught later. SCSI disks can be trusted when you set 
> this option.

I have some Western Digital Caviars and they don't lie about disabling
write caching.