Hi Arnaud,
I was having a conversation about this other day. With today's social
media blitz, it can become an overload of information and different people
like to learn about things in different ways. Some people told me they
like something in their InBox. Others said their InBox was too full
already. Others told me Twitter. Others LinkedIn. Some said ADSM-L. You
indicate below that you would like to see information about new releases
in the "IBM my notifications" or the "Technical Support Newsletter". One
option is post it everywhere and it. This is all good feedback.
Thank you,
Del
----------------------------------------------------
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 03/22/2016
05:36:46 AM:
> From: PAC Brion Arnaud <Arnaud.Brion AT PANALPINA DOT COM>
> To: ADSM-L AT VM.MARIST DOT EDU
> Date: 03/22/2016 05:37 AM
> Subject: Re: 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 Del,
>
> Thanks for notifying that new feature : I will test it immediately !
> I'm however sorry to inform you that contrarily to your assumption,
> and despite the fact that I subscribed to "IBM my notifications" as
> well as to " Technical Support Newsletter", both related to Spectrum
> protect, that information did not make its way to me ...
> I assume that lots of TSM admins, all of them being pretty occupied
> by daily business activities, and not mandatorily having enough time
> to seek information are in the same case !
> I incidentally learnt as well thru your link that " Repair damaged
> data on a replication target" feature had been added in TSM 7.1.5,
> which is definitively a good thing, but I find it a shame that such
> information is not pushed to customers thru the means of
> newsletters, and that we have to dig in the depths of IBM's web site
> to get such - important - information.
> I fully understand that TSM / Spectrum protect has been subject to
> numerous bugs fixes and improvements in the latest months ( I never
> lived such an upgrade waltz during 15 years of TSM administration),
> but to my eyes there's still lot of space for communication
> improvement by IBM !
> Of course, only MHO ...
>
> Cheers.
>
> Arnaud
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> Behalf Of Del Hoobler
> Sent: Monday, March 21, 2016 10:53 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Real world deduplication rates with TSM 7.1 and container
pools
>
> 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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