Getting SHRPOOL Pool to Work

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I have added SHRPOOL1 to the pool definitions for one of my subsystems. I also changed all the routing entries to use this memory pool as well. I've been watching the memory pool with WRKSHRPOOL for most of the day and it appears that nothing is running in that pool. Some jobs have been running in the subsytem since I made the change. It was my understanding that any new jobs entering the subsystem after the changes were made would run in the newly assigned pool. Is this not correct? My goal is to make better use of the automatic performance adjuster on our model 810. I was going to move all my batch work into their own memory pools away from *BASE. Any help you can provide will be greatly appreciated.
ASKED: November 11, 2005  3:51 PM
UPDATED: November 19, 2009  2:48 AM

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It’s not mentioned so I presume it hasn’t been done……Aren’t pools/subsystems allocated at the time the SBSD is started? If you haven’t recycled then the change is not implemented. Also, ar eyou 100% sure that your RTGEs have the same POOLID as specified on Option 2 of DSPSBSD (rather than the pool number shown on WRKSYSSTS)

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  • Sully35
    I didn't restart the susbsystem but this weekend I performed a scheduled IPL. I did notice the message "0KB of 0KB for shared pool *SHRPOOL1 allocated." in my qsysopr message queue during the IPL when it was starting a couple of subsystems that I updated to use SHRPOOL1. Do I need to manually set some amount of memory first to the pool? I have changed its paging option to use *CALC. Paul, I also verified that my routing entries do match the pool ID in my subsystem and not WRKSYSSTS. Thanks for any other help you may be able to provide.
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  • Sully35
    I didn't restart the susbsystem but this weekend I performed a scheduled IPL. I did notice the message "0KB of 0KB for shared pool *SHRPOOL1 allocated." in my qsysopr message queue during the IPL when it was starting a couple of subsystems that I updated to use SHRPOOL1. Do I need to manually set some amount of memory first to the pool? I have changed its paging option to use *CALC. Paul, I also verified that my routing entries do match the pool ID in my subsystem and not WRKSYSSTS. Thanks for any other help you may be able to provide.
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  • TomLiotta
    You might want to read the <help> for items on the WRKSHRPOOL display before making changes. 0MB for a pool doesn't accomplish much, nor does a zero activity level. Also, be aware that if you are using QBASE as the controlling SBS instead of QCTL (or your own SBS) and/or if you're still running all of TCP/IP including all of its servers as well as all host servers and communications jobs and just about everything else, other than jobs in *SPOOL and *INTERACT pools, in *BASE, then there's as much chance of making things worse as making things better. When significant active job work is running in *BASE, the auto adjust will mostly waste CPU for you. Especially if the *BASE activity is higher run-priority than what you want in *SHRPOOL1, but still mostly true even if lower run-priority. Also, changing pool assignments doesn't require ENDSBS/STRSBS and hasn't required it since... hmmm... mid-V4? Earlier? Tom
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