@Del,
Additional question : if replicating compressed data, will the data be
transmitted compressed or uncompressed ?
Cheers.
Arnaud
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Alexander Heindl
Sent: Tuesday, March 22, 2016 3:19 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Real world deduplication rates with TSM 7.1 and container pools
Hi,
but already client side compressed data isn't affected, isn't it?
what if data is replicated. Is that data then compressed?
Regards,
Alex
Von: Del Hoobler <hoobler AT US.IBM DOT COM>
An: ADSM-L AT VM.MARIST DOT EDU,
Datum: 22.03.2016 15:14
Betreff: Re: [ADSM-L] Real world deduplication rates with TSM 7.1
and container pools
Gesendet von: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
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=SgMrq23dbjbGX6e0ZsSHgEZX6A4IAf1SO3AJ2bNrHlk&r=dOGCMY197NTNH1k_wcsrWS3_fxedKW4rpKJ8cHCD2L8&m=OMHhA4Nmsv9Buo24T83zOFo8w4mvoMyvC_nagZn36T0&s=C4shp8VD_EyXjruT5Lu2v68tMVpfpzHcluAuRJfaIK0&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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> > Panalpina Management Ltd., Basle, Switzerland,
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> > Phone: +41 (61) 226 11 11, FAX: +41 (61) 226 17 01
> > Direct: +41 (61) 226 19 78
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