| From: | Bruno Wolff III <bruno(at)wolff(dot)to> |
|---|---|
| To: | Shane Ambler <pgsql(at)Sheeky(dot)Biz> |
| Cc: | Peter Kovacs <maxottovonstirlitz(at)gmail(dot)com>, Jeff Davis <pgsql(at)j-davis(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Carlos Moreno <moreno_pg(at)mochima(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Two hard drives --- what to do with them? |
| Date: | 2007-03-01 03:35:21 |
| Message-ID: | 20070301033521.GC14102@wolff.to |
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| Thread: | |
| Lists: | pgsql-performance |
On Wed, Feb 28, 2007 at 05:21:41 +1030,
Shane Ambler <pgsql(at)Sheeky(dot)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.
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