If you are using node replication, you could re-replicate the data and get
it compressed (both ways). It may be a bit much work, feasible perhaps for
selected nodes.

Joerg Pohlmann

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Del
Hoobler
Sent: March 22, 2016 07:11
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Real world deduplication rates with TSM 7.1 and
container pools

Hi David,

No. Only newly stored data will be compressed.


Del

----------------------------------------------------


"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 03/22/2016
09:41:27 AM:

> From: David Ehresman <david.ehresman AT LOUISVILLE DOT EDU>
> To: ADSM-L AT VM.MARIST DOT EDU
> Date: 03/22/2016 09:42 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>
>
> Del,
>
> After upgrading to 7.1.5 is there a way to get pre-existing container
> data compressed?
>
> David
>
> -----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 5:53 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] 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:
>
>
> https://urldefense.proofpoint.com/v2/url?
> u=http-3A__www.ibm.com_support_knowledgecenter_SSGSG7-5F7.1.
>
5_srv.common_r-5Ftechchg-5Fsrv-5Fcompress-5F715.html&d=AwIFAg&c=SgMrq23dbjbG
X6e0ZsSHgEZX6A4IAf1SO3AJ2bNrHlk&r=dOGCMY197NTNH1k_wcsrWS3_fxedKW4rpKJ8cHCD2L
8&m=OMHhA4Nmsv9Buo24T83zOFo8w4mvoMyvC_nagZn36T0&s=C4shp8VD_EyXjruT5Lu2v68tMV
pfpzHcluAuRJfaIK0&e=
>
> 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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> > Basel/CH
> > Phone: +41 (61) 226 11 11, FAX: +41 (61) 226 17 01
> > Direct: +41 (61) 226 19 78
> > e-mail:
> > arnaud.brion AT panalpina DOT com<mailto:arnaud.brion AT panalpina DOT com>
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