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Date: Mon, 30 Mar 2009 10:51:07 -0700
From: Andrew Sharp <andy.sharp@onstor.com>
To: John Keiffer <John.Keiffer@onstor.com>
Cc: John Rogers <john.rogers@onstor.com>, dl-Leopard <dl-Leopard@onstor.com>
Subject: Re: Compression question
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I really don't know the answer, but I have another question to throw
into the mix.

Probably the biggest target application for both de-dupe and compression
is exchange.  The question is, can compression be used for an iSCSI
volume?  It would be very interesting to customers if we could tell
them that they could expect in the neighborhood of X% compression of
their exchange data.

Cheers,

a

On Mon, 30 Mar 2009 08:24:25 -0700 John Keiffer
<John.Keiffer@onstor.com> wrote:

> It's my understanding that it would only apply to new data coming in. However, over time you would see a decrease in size since when existing data is accessed and re-written, it is written in a new place and would probably then have the compression applied. (Please correct me if I'm wrong.)
> 
> -John
> 
> ________________________________
> From: John Rogers
> Sent: Friday, March 27, 2009 5:08 PM
> To: dl-Leopard
> Subject: Compression question
> 
> Can I turn compression on, on an existing data set and expect that it will be compressed or does compression only apply to incoming data?
> 
> John
