| TCB Pool |
DSGTCBPN |
The name of the CICS TCB
pool, either OPEN, SSL, THRD, or XP. Reset characteristic: not
reset
|
| Current TCBs attached in this TCB Pool |
DSGCNUAT |
The current number of TCBs attached in the TCB
modes that are in this TCB pool. Reset characteristic: not
reset
|
| Peak TCBs attached in this TCB Pool |
DSGPNUAT |
The peak number of TCBs attached in the TCB modes
that are in this TCB pool. Reset characteristic: reset to
current
|
| Current TCBs in use in this TCB Pool |
DSGCNUUS |
The current number of CICS TCBs
attached in this TCB pool and being used. Reset characteristic:
not reset
|
| Peak TCBs in use in this TCB Pool |
DSGPNUUS |
The peak number of CICS TCBs
used that were attached in this TCB pool. Reset characteristic:
reset to current value
|
| Max TCB Pool limit |
DSGMXTCB |
The value for the maximum number of TCBs allowed
in this pool:
- The MAXOPENTCBS system initialization parameter,
if specified, sets the value for the open TCB pool. If the MAXOPENTCBS
system initialization is not specified, CICS sets the limit for the
L8 and L9 mode open TCB pool automatically based on the maximum number
of tasks specified for the CICS region (the MXT value), using the
following formula:
(2 * MXT Value) + 32.
- The MAXSSLTCBS system initialization parameter
specifies the value for the SSL TCB pool.
- The MAXTHRDTCBS system initialization parameter
specifies the value for the JVM server THRD TCB pool. The number of
threads reserved for each JVM server is the THREADLIMIT value on the
JVMSERVER resource, plus 1, up to a limit of 2000.
- The MAXXPTCBS system initialization parameter,
if specified, sets the value for the XP TCB pool. If the MAXXPTCBS system
initialization is not specified, CICS sets the limit for the X8 and
X9 mode XP TCB pool automatically to a value equal to the maximum
number of tasks specified for the CICS region (the MXT value)
You can change the maximum value by overriding the appropriate
system initialization parameter or by using the SET DISPATCHER command.
To change the maximum value of the JVM server, use the SET JVMSERVER
command.
Reset characteristic: not reset
|
 Time Max TCB Pool Limit last reached |
DSGLTCBL |
The time at which the pool reached the maximum
TCB limit. If the DFHSTUP report shows the time as --:--:--:----
then that indicates that the pool limit has not been reached since
the statistics were last reset.
Reset characteristic: reset
to zero
|
| Times at Max TCB Pool Limit |
DSGNTCBL |
The number of times the system reached the limit
for the number of TCBs allowed in this pool:
- OPEN TCB pool
- SSL TCB pool
- THRD TCB pool
- XP TCB pool
Reset characteristic: reset to zero
|
| Total Requests delayed by Max TCB Pool Limit |
DSGTOTNW |
The total number of TCB requests delayed because
the system reached the limit for the number of TCBs allowed in this
pool. Reset characteristic: reset to zero
|
| Total Max TCB Pool Limit delay time |
DSGTOTWL |
The total time that TCB requests were delayed
because the system had reached the limit for the number of TCBs allowed
in this pool. Reset characteristic: reset to zero
|
| Current Requests delayed by Max TCB Pool Limit |
DSGCURNW |
The number of TCB requests that are currently
delayed because the system has reached the limit for the number of
TCBs allowed in this pool. Reset characteristic: not reset
|
| Current Max TCB Pool Limit delay time |
DSGCURWT |
The current delay time for the TCB requests that
are currently delayed because the system has reached the limit for
the number of TCBs allowed in this pool. Reset characteristic:
not reset
|
| Peak Requests delayed by Max TCB Pool Limit |
DSGPEANW |
The peak number of TCB requests that were delayed
because the system had reached the limit for the number of TCBs allowed
in this pool. Reset characteristic: not reset
|
| Total Number of TCB Mismatch waits |
DSGMMWTS |
The total number of TCB mismatch waits; that
is, TCB requests that waited because no TCB was available that matched
the request, but at least one non-matching TCB was free. Reset
characteristic: reset to zero
|
| Total TCB Mismatch wait time |
DSGMMWTM |
The total time spent in TCB mismatch waits by
TCB requests using this pool. Reset characteristic: reset
to zero
|
| Current TCB Mismatch waits |
DSGCMMWS |
The current number of TCB mismatch waits by
TCB requests using this pool. Reset characteristic: not
reset
|
| Current TCB Mismatch wait time |
DSGCMMWT |
The current wait time for current TCB mismatch
waits by TCB requests using this pool. Reset characteristic: not
reset
|
| Peak TCB mismatch waits |
DSGPMMWS |
The peak number of TCB mismatch waits by TCB
requests using this pool. Reset characteristic: reset to
current value
|
| Requests delayed by MVS™ storage
constraint |
DSGTOTMW |
The total number of MVS storage
requests that have waited because no TCB was available, and none was
created because of MVS storage constraints. Reset
characteristic: reset to zero
|
| Total MVS storage constraint delay time |
DSGTOTMT |
The total time spent in MVS storage
waits by TCB requests using this pool. Reset characteristic: reset
to zero
|