Ditto. We are seeing ~65% savings on vmware luns....serving about 60 luns.
no performance impacts during the day slight (~3%) when actually deduping.
Jack
Glenn Dekhayser wrote:
>
> I have a client de-duping ~15 iSCSI LUNs in the same volume (vmware c:
> drives), getting great data reduction, with no perceivable performance
> impact.
>
>
>
> -Glenn (the other one)
>
>
>
> *From:* owner-toasters(a)mathworks.com
> [mailto:owner-toasters@mathworks.com] *On Behalf Of *Willeke, Jochen
> *Sent:* Wednesday, February 13, 2008 8:01 AM
> *To:* Bill Holland; toasters(a)mathworks.com
> *Subject:* RE: De-dup'ing Primary Storage
>
>
>
> Hi Bill,
>
>
>
> we have ASIS on two of our 6070's for some time. We did only few tests
> but could not see any direct impact on the filers performance.
>
> We have not yet used it for LUNs so far, but would be interessted in
> experience with ASIS on LUNs as well.
>
>
>
> Regards
>
>
>
> Jochen
>
>
>
> ------------------------------------------------------------------------
>
> *From:* owner-toasters(a)mathworks.com
> [mailto:owner-toasters@mathworks.com] *On Behalf Of *Bill Holland
> *Sent:* Wednesday, February 13, 2008 12:50 PM
> *To:* toasters(a)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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