ADSM-L

Cancel process enhancement.

2004-03-10 21:46:05
Subject: Cancel process enhancement.
From: Steve Harris <Steve_Harris AT HEALTH.QLD.GOV DOT AU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 11 Mar 2004 12:44:54 +1000
Hi All,

I'd like to propose a change to the cancel process syntax to allow a select 
statement as a part of it.

The reasoning for this is that there are often situations where we need to 
cancel a process to ensure that there are resources for other scheduled 
processes.  For example I may have a long running reclaim happening that was 
kicked off by changing the reclaim percentage on a storage pool. I know that 
this reclaim will run into my overnight backup window, but, there is no way of 
cancelling the process automatically from within TSM.

Yes, there are many was to do this externally to TSM, but these all involve 
running scripts and exposing powerful passwords to prying eyes.

To address this issue, I suggest the the cancel syntax be modified to allow  
the process number of the processes to be cancelled to be supplied using  a 
select on the process table.  This would also require that the cancel command 
could cancel more than one process at once.

To use the reclaim issue as an example 

The process table contains

PROCESS_NUM: 745
PROCESS: Space Reclamation
START_TIME: 2004-03-11 12:15:27.000000
FILES_PROCESSED: 0
BYTES_PROCESSED: 0
STATUS: Volume R00232 (storage pool TAPEPOOL-B), Moved Files: 0, Moved
                Bytes: 0, Unreadable Files: 0, Unreadable Bytes: 0. Current
                Physical File (bytes): 412,501,966
                Waiting for multiple mount
                points in device class ATL3590E (494 seconds).



cancel process where  process_num in (select process_num from processes where 
process='Space Reclamation' and status like '% TAPEPOOL-B)%')

Does anyone think this is a good idea? Comments?

Steve Harris
AIX and TSM Admin
Queensland Health
Brisbane Australia





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