CTCBS view
This view displays a list of the attributes and status of the MVS task control blocks (TCBs) in a CICS region.
To display the view, issue the following command:
CTCBS [target]
where target is the specific or generic name of a target CICS region.
The following figure is displayed:
CTCBS view
COMMAND ===>
CURR WIN ===> 1 ALT WIN ===>
W1 =CTCBS============(ALL======*=======)ddmmmyyyy==hh:mm:ss====MVCICS===D==641==============
Target TCB TCB CPU PK TCB RB RB Initial Entry PSW
Address Status Usage Name Type Address Program Point Address
BCVCB660 005EE1A0 WAITING 5.16995 80 PRB 005EE3A8 DFHSIP B895C8A0 B896168C
BCVCB660 005C8C88 WAITING 0.00271 80 PRB 005C8C00 DFHTRTCB B8A6DD22 B8A6DD46
BCVCB660 005C4E88 WAITING 0.07369 80 FO_SUBD PRB 005C8A80 DFHKETCB B895FAE4 B891474E
BCVCB660 005C4C58 WAITING 0.99358 80 RO_SUBD PRB 005C89F8 DFHKETCB B895FAE4 B891474E
BCVCB660 005C4A28 WAITING 12.31897 80 QR_SUBD PRB 005C8970 DFHKETCB B895FAE4 B8914512
BCVCB660 005C47F8 WAITING 0.72099 80 CO_SUBD PRB 005C8798 DFHKETCB B895FAE4 B891474E
BCVCB660 005C8040 WAITING 0.08918 80 CQ_SUBD PRB 005B4F98 DFHKETCB B895FAE4 B9676BC4
BCVCB660 005B4688 WAITING 0.00510 80 SL_SUBD PRB 005B45E8 DFHKETCB B895FAE4 B891474E
BCVCB660 005B4288 WAITING 0.03666 80 SO_SUBD PRB 005B4560 DFHKETCB B895FAE4 B891474E
BCVCB660 005B2E88 WAITING 0.00017 80 SP_SUBD PRB 005B4098 DFHKETCB B895FAE4 B891474E
BCVCB660 005B2B88 WAITING 0.00294 80 PRB 005B2B00 DFHKEATT B89623E0 80FF6D36
BCVCB660 005B2788 WAITING 0.00010 80 EP_SUBD PRB 005B2A78 DFHKETCB B895FAE4 B891474E
BCVCB660 005B2488 WAITING 1.15955 80 SZ_SUBD PRB 005B23E8 DFHKETCB B895FAE4 B891474E
BCVCB660 005AAAE8 WAITING 0.00614 80 L8_SUBD PRB 005ACE88 DFHKETCB B895FAE4 B891474E
BCVCB661 005EE1A0 WAITING 5.39603 80 PRB 005EE3A8 DFHSIP B895C8A0 B896168C
BCVCB661 005C8C88 WAITING 0.00305 80 PRB 005C8C00 DFHTRTCB B8A6DD22 B8A6DD46
BCVCB661 005C4E88 WAITING 0.06739 80 FO_SUBD PRB 005C8A80 DFHKETCB B895FAE4 B891474E
BCVCB661 005C4C58 WAITING 0.98617 80 RO_SUBD PRB 005C89F8 DFHKETCB B895FAE4 B891474E
BCVCB661 005C4A28 WAITING 12.40678 80 QR_SUBD PRB 005C8970 DFHKETCB B895FAE4 B8914512 3390
Usage notes
The CTCBS view shows the MVS TCBs in use, which can have a significant influence on CICS performance.
You can identify the number of TCBs generated for use by specific software products, such as DB2. You can then determine whether there is an over- or under-allocation of TCBs for this region.
Related views
The following views provide additional TCB information.
View | Description |
|---|---|
CTCBSZ | To display summarized information about the TCBs in CICS region, enter the SUM command on the CTCBS view. The data is summarized by Region name. The Count field shows how many TCBs are represented by each line of summary data. You can also hyperlink from the Count field to the CTCBS view to expand a line of summary data. |
CTCBSD | To display a detailed view of a specific TCB, hyperlink from the TCB Status field. |
CTCBSQ | To display a quick-menu of a specific TCB, hyperlink from the CPU Usage field. |