ADSM-L

Re: Copypool Occupancy Question

2004-03-17 14:52:17
Subject: Re: Copypool Occupancy Question
From: Dwight Cook <cookde AT US.IBM DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 17 Mar 2004 13:49:48 -0600



could it be that aggregates in the primary pool have gone through
reclamation processing and thus purged expired space out of the aggregate
thus reducing the data in the primary pool but not the copy pool ?????????

Try looking at the percent logical of each pool, doesn't the percent
logical indicate how much data could be reclaimed through the rebuild of
aggregates (in an inverse sort of way...)


Dwight E. Cook
Systems Management Integration Professional, Advanced
Integrated Storage Management
TSM Administration
(918) 925-8045




                      Andy Carlson
                      <andyc AT ANDYC DOT CARE        To:       ADSM-L AT 
VM.MARIST DOT EDU
                      NET.ORG>                 cc:
                      Sent by: "ADSM:          Subject:  Copypool Occupancy 
Question
                      Dist Stor
                      Manager"
                      <[email protected]
                      .EDU>


                      03/17/2004 11:08
                      AM
                      Please respond to
                      "ADSM: Dist Stor
                      Manager"






I created a little script to compare the occupancy of the onsite tape
pool (backcart) and copy pool (copy3592).  Here is the script:

select sum(physical_mb)/1024 as "BACKCART GB" from occupancy where
stgpool_name='BACKCART'
select sum(physical_mb)/1024 as "COPY3592 GB" from occupancy where
stgpool_name='COPY3592'

Pretty simple, but I get these results:

tsm: TSMI>run stgcomp

                      BACKCART GB
---------------------------------
                         16254.37

                      COPY3592 GB
---------------------------------
                         16296.24

I cannot figure out why the copypool would ever have more data in it
than the primary pool.  Any ideas?  It's not really a big thing, but I
was trying to figure out how to get an estimate of how much needs to be
copied.

Thanks for any information.


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