$HASP050 message for resource shortages

JES2 issues message $HASP050 to indicate shortage(s) of one or more of the following resource types:

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 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.

In general, take one or more of the following actions as appropriate for the resource type:

Increase the quantity of the resource on its corresponding JES2 initialization statement.
Increase the quantity of the resource with a $T command.
Decrease demand for the resource (such as purging old held output to relieve a shortage of JOEs).
Monitor temporary or non-impact shortages for possible future action.

Some resources, such as those described later, require specific actions to determine why there is a resource shortage.