ADSM-L

Re: [ADSM-L] Percent Total Space Saved calculation

2016-05-02 12:08:33
Subject: Re: [ADSM-L] Percent Total Space Saved calculation
From: Maurice van 't Loo <maurice AT BACKITUP DOT NU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 2 May 2016 18:07:03 +0200
Hello Robert,

We are on 7.1.4, so can't be 100% sure, but for what I see from your mail:

Total Space Saved is Deduplication Savings (163G) plus Compression Savings
(339G) = 502G
Space used is 10240G * 3.5% = 358.4G

So a sum of occupancy should be 502+358 = 860G
58.26% of 860G = 501G..... close enough ;-)

Regards,
Maurice van 't Loo

2016-04-21 11:35 GMT+02:00 Robert Ouzen <rouzen AT univ.haifa.ac DOT il>:

> I Guys
>
> I tried to figure with version TSM server 7.1.5 and the compression
> feature is On , on a stg pool of type directory.
>
> How the percent of a Total Space Saved is calculated  in my case 58.26%
>
> The command  Q STG DEDUPCONTAINER f=d   show:
>
> sm: TSMREP>q stg dedup* f=d
>
>                    Storage Pool Name: DEDUPCONTAINER
>                    Storage Pool Type: Primary
>                    Device Class Name:
>                    Storage Type: DIRECTORY
>                    Estimated Capacity: 10,240 G
>                   Space Trigger Util:
>                   Pct Util: 3.5
>                   Description: TSMREP Replication
>                 Delay Period for Container Reuse: 0
>                  Deduplicate Data?: Yes
>                 Processes For Identifying Duplicates:
>                 Compressed: Yes
>                Deduplication Savings: 166,578 M (18.89%)
>               Compression Savings: 339 G (48.54%)
>                Total Space Saved: 502 G (58.26%)
>
> If I run a select * for stgpools got only the SPACE_SAVED_MB and not the
> percent.
>
> Any ideas ???
>
> Best Regards
>
>
> Robert
>

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