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264 VLDB 2012 Track All DB2 Address Spaces Real and Virtual Storage in IFCID 225
With DB2 Ver 10 ECSA consumption has shifted from DB2 DIST address space to the DB2 MSTR address space. This is thread related storage and increases as the number of active DBAT connections increases. There is a need to track this for each individual DB2 member as we scale up DB2 with more data base connections and yet try to fit within the defined ECSA of an LPAR.
We also need to track the occurrence of memory leaks in DB2 MSTR ECSA in such a way that we can have DB2 PM or some other interface to automation alert us. We have already experienced a DB2 MSTR ECSA leak in V10.
Today only DB2 DIST and DB2 DBM1 have their ECSA consumption recorded in IFCID 225. So to begin with we need DB2 MSTR ECSA usage tracked in IFCID 225.
Carrying this request to it's logical conclusion we need the real and virtual storage of all DB2 address spaces including DBM1, MSTR, DIST, IRLM, WLM Stored Procedure MSTR and Servers, and those yet to be invented tracked in IFCID 225.
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