IBM OS/370, MVS, OS/390, Linux, TPF, VM/CMS, VM/ESA, VSE/ESA, z/VM, z/VSE, z/OS, z/OS.e etc...
We have DB2 Image copy backup job is there. It took more than 10 hours to excute completely(Total number of DB2 datasets are more than 10K). For that, we coded REGION=0M. Still it is failling with S878 and Reason=10 sometimes. Is it possible to run without the abend(We have one recommmendation to spilit the job and run. But other than this).
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I would suggest you discuss this matter with the program's vendor. The vendor will probably require a storage dump to allow them to try to locate whatever program element is not releasing storage after each dump.
Your system is probably writing one or two messages to the JES2 job log; these messages will most likely be requested by the program's vendor. The real problem may be the program is damaging a free space chain. There is nearly nothing people on this board can do to assist you.
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