Re: Write cache for a SAN

  • From: "Jared Still" <jkstill@xxxxxxxxx>
  • To: dofreeman@xxxxxxxxxxx
  • Date: Mon, 3 Nov 2008 12:09:12 -0700

On Mon, Nov 3, 2008 at 7:19 AM, Freeman, Donald <dofreeman@xxxxxxxxxxx>wrote:

>  We don't disable it.  The SAN manufacturers have made this as bullet
> proof as possible.

Guess what happens when the storage vendor sends out a tech to replace
(the batteries that ensure the write cache stays put), and the tech can't be
to follow instructions?

What do you think might happen to the write cache?

I'm not saying that the write cache should be disabled, but you need to
ensure that
the folks that maintain the HW actually know what they are doing.

Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist

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