JES2 resource have 15 different buffers which serves specific functionality..Following are the buffer which i came across.... In future post will update more about each buffers....
- BERT - Block Extension reuse tables
- BSCB - Bisynchronous buffers
- BUFX - Extended logical buffers
- CKVR - Checkpoint versions
- CMBS - Console message buffers
- CMDS - Console message buffers used for JES2 commands
- ICES - VTAM® sessions
- LBUF - Logical buffers
- JNUM - Job numbers
- JQES - Job queue elements
- JOES - Job output elements
- NHBS - NJE header/trailer buffers
- SMFB - System management facility buffers
- TGS - SPOOL space/track groups
- TTAB - Trace tables
- VTMB - VTAM buffers
JES2 issues message
$HASP050 to indicate shortage(s) of one or more of the above mentioned buffers.
JES2 resource shortages
might be temporary and occur during periods of heavy utilization or the
shortages might be permanent and impact JES2 processing. Typically, a resource
shortage is the result of not specifying a large enough value for a resource in
your JES2 initialization statements.
$JDHISTORY - Command to display history of resource usage.
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