I think most of you know Spectrum Protect just added in-line compression
to the container and cloud deduplicated pools in version 7.1.5:
http://www.ibm.com/support/knowledgecenter/SSGSG7_7.1.5/srv.common/r_techchg_srv_compress_715.html
Adding incremental forever, the new in-line deduplication - client or
server-based (7.1.3), new in-line compression (7.1.5) I think you will
find that Protect continues to drive overall data reduction. This is being
done in the software, so you can choose what disk you want to use.
I encourage folks to try out the the new deduplication along with the new
compression to see how it helps with the overall data reduction.
Thank you,
Del
----------------------------------------------------
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 03/18/2016
10:41:06 AM:
> From: PAC Brion Arnaud <Arnaud.Brion AT PANALPINA DOT COM>
> To: ADSM-L AT VM.MARIST DOT EDU
> Date: 03/18/2016 10:41 AM
> Subject: Real world deduplication rates with TSM 7.1 and container pools
> Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
>
> Hi All,
>
> We are currently testing TSM 7.1 deduplication feature, in
> conjunction with container based storage pools.
> So far, my test TSM instances, installed with such a setup are
> reporting dedup percentage of 45 %, means dedup factor around 1.81,
> using a sample of clients which are representative of our production
> environment.
> This is unfortunately pretty far from what was promised by IBM
> (dedup factor of 4) ...
>
> I'm wondering if anybody making use of container based storage pools
> and deduplication would be sharing his deduplication factor, so that
> I could have a better appreciation of real world figures.
> If you would be so kind to share your information (possibly with the
> kind of backed-up data i.e. VM, DB, NAS, Exchange, and retention
> values ...) I would be very grateful !
>
> Thanks in advance for appreciated feedback.
>
> Cheers.
>
> Arnaud
>
>
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