We’ve been doing some
VMWare testing with FCP LUNs and A-SIS.
We saw a reduction from
471GB to 21GB with only about a 7% reduction in performance. More than a
fair trade-off in my opinion.
Our testing could have
had impact on the performance more than the de-dupe,
however.
Glenn
From:
owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Bill Holland
Sent: Wednesday, February 13, 2008 6:50
AM
To:
toasters@mathworks.com
Subject:
De-dup'ing Primary Storage
To those of you that have implemented Nearstore and
A-SIS on your primary storage:
1. Have you seen any difference in overall filer
performance?
2. If you have LUNs, how are your space savings on
those volumes?
I know that enabling Nearstore does some system tweaking
in the background to increase the number of concurrent backup streams that can
be running, but I don't know what else it tweaks that may adversely affect
performance of a primary storage system. Afterall, it was originally
designed to run as a secondary storage
platform.
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