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https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.3.0/com.ibm.zos.v2r3.ceea200/ceea200267.htm
CICS short-on-storage condition. The CICS® short-on-storage condition might be raised under Language Environment if functions in your application attempt to acquire storage by using language facilities and not enough storage is available to satisfy the request. CICS places the transaction on a queue until the storage request can be satisfied.
https://www.ibm.com/support/knowledgecenter/en/SSAL2T_9.1.0/com.ibm.cics.tx.doc/tasks/t_tb_perf_iss_1.html
ERZ048002I CICS Is Under Stress - Short on Runtime Support storage. If you see a repeating pattern of messages telling you that CICS is short on storage, then it is not short on storage, a transaction might well contain a GETMAIN/FREEMAIN loop.
https://www.ibm.com/support/knowledgecenter/en/SSGMCP_5.4.0/tuning/dfht3_dsa_sos.html
Use CICS messages and statistics to monitor when a short-on-storage (SOS) condition is entered, and when it is relieved. CICS attempts to resolve pressures on storage before entering a short-on-storage condition. When CICS starts to become short on space in a DSA, the situation is known as a storage stress condition.
http://www-01.ibm.com/support/docview.wss?uid=swg1PI67032
The storage actually used by the Java code will be 31 or 64 bit. The JCICS GET CONTAINER call issues an EXEC CICS GET CONTAINER SET call. This will return the SET area using the program's DATALOCATION and so that gives 24 bit storage.
http://ibmmainframes.com/about47494.html
Short answer (which is always true for S-O-S problems): figure out what's eating up the storage and change the program(s) to resolve it -- or add more memory to the region. Run a STAT in the region and find out which storage pool is having the problem.
http://www-01.ibm.com/support/docview.wss?uid=swg27022204&aid=1
What is short on storage? When a getmain request for CICS DSA storage cannot be satisfied. CICS will issue one of the following messages when it goes short on storage: DFHSM0131 - applid CICS is under stress (short on storage below 16MB). DFHSM0133 - applid CICS is …
https://www.ibm.com/support/knowledgecenter/en/SSGMCP_5.1.0/com.ibm.cics.ts.whatsnew.doc/64_general/dfhe4_overview.html
Jun 27, 2019 · The CICS runtime environment is improved in the following ways: The need for additional CICS regions to resolve demands on 31-bit storage is reduced. Problems caused by short-on-storage conditions in 31-bit storage are avoided. CICS regions can carry out simultaneous processing of a greater number of tasks that use these CICS facilities.
http://ibmmainframes.com/about58352.html
The S-O-S may be happening in test but not QA or production because the test region has a smaller EDSA size. You need to raise this as an issue to your site CICS support person/group since if the EDSA size is the same across all regions, your transaction could have a problem once moved into production.
http://www-01.ibm.com/support/docview.wss?uid=swg21197278
The system will soon have numerous 6M extents until CICS can no longer find six contiguous 1M extents, leading to a short on storage condition. Resolving the problem Turn off AUTODST if you have a system with a variety of transaction types.
https://searchdatacenter.techtarget.com/answer/Questions-about-CICS-Short-on-Storage-processing
May 10, 2002 · I would like to know, how would the CICS release storage when it is in SOS? How CICS controls all the VSAM files I/O buffer? Is there any relationship between the "short on storage" and the corruption of online VSAM files? First let me say that CICS Short-on-Storage processing should not, under any circumstances, cause loss of data integrity.
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