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MQSeries.net Forum Index » Mainframe, CICS, TXSeries » Page Dataset increase CSQP017I

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terrir
PostPosted: Tue Jan 17, 2006 5:22 am    Post subject: Page Dataset increase CSQP017I Reply with quote

Novice

Joined: 11 Jan 2006
Posts: 16

We have an application that writes to a queue and causes the page dataset to go into the wonderful world of expansion. This of course causes our threads to be disconnect and basically stops PM4DATA... (in summary)... Right now our page datasets are defined as
DEFINE CLUSTER
(NAME(xxxx.xxxx.PSID01)
RECORDS(10000 500)
LINEAR
VOLUMES(*)
SHAREOPTIONS(2 3) )
DATA
(NAME(xxxx.xxxx.PSID01.DATA)


I want to create a larger page dataset and move this queue to it. What would you guys suggest. Thank you in advance for your help!!!!
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javagate
PostPosted: Tue Jan 17, 2006 5:37 am    Post subject: Reply with quote

Disciple

Joined: 15 Nov 2004
Posts: 159

read the manual on how to exp the pageset. dont make the secondary space alloc too large. have fun.
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Mr Butcher
PostPosted: Tue Jan 17, 2006 7:52 am    Post subject: Reply with quote

Padawan

Joined: 23 May 2005
Posts: 1716

in the manuals there is also a formular so you can calculate how many pages your pageset will need. (planning you rpagesets in concepts and planning guide)
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terrir
PostPosted: Wed Jan 18, 2006 4:49 am    Post subject: Reply with quote

Novice

Joined: 11 Jan 2006
Posts: 16

Thanks for your input.. Time to start formulating!!!!!
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oz1ccg
PostPosted: Sat Feb 11, 2006 4:46 am    Post subject: Reply with quote

Yatiri

Joined: 10 Feb 2002
Posts: 628
Location: Denmark

If you get near to the VSAM expansion limit of 120+ you could consider getting help from HSM. Stop the queue manager and issue a HBACK (to backup the pageset) and a HMIG (to migrate it) and a HRECALL (to get it back on DASD again).

What VSAM does for you is moving all the extents into the primary allocation, and you're ready to expand 100+ times more.

There are one situatione where this don't help you, and that is if the Pageset tried to expand and could not get the space.

Version 6.0 of WMQ have some new features to avoid the space problems......

There is ofcause the official way to, allocate a new pageset, format it and use COPYPACE and rename ... All documented in the WMQ system admin guid for z/os.

--- Lock it or Lose it ---
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terrir
PostPosted: Thu Feb 16, 2006 5:33 am    Post subject: Reply with quote

Novice

Joined: 11 Jan 2006
Posts: 16

Thank you for the tips!! We are also working with the vendor that the queue is set up for. They do admit that there is a "little bug", so in the meantime I have created a page set and storage class just for that queue.

Thanks
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