EXPERT RESPONSE
I suggest that you alter your logic and use XC DOC INSERT to add in this BLOB into the document. This can cope with a full words worth of data. However I cannot say how much internal CICS storage will be used by this operation. If you have got back a pointer from the DB2 operation, then you can just use it in the command and all should be well (please get rid of the DB2 area as soon as possible, if it's that large!).
I confess to being slightly surprised that you want to use CICS to service such a large item but it should work OK. Raise an APAR if it doesn't but do ensure that the CICS storage definitions in the SIT are big enough to cope.
Robert Harris
Inventor
CICS Technical Strategist -- CICS expert at Search390.com
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