DCMT DISPLAY CHANGE TRACKING Command

DCMT DISPLAY CHANGE TRACKING displays information on the status of change tracking and on the SYSTRK files currently known to the system.
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DCMT DISPLAY CHANGE TRACKING displays information on the status of change tracking and on the SYSTRK files currently known to the system.
This article describes the following information:
Syntax
►►─ DCMT ─┬───────────────────┬─ Display CHAnge TRAcking ─────────────────────►◄           └─ 
broadcast-parms
 ─┘
Parameter
  • broadcast-parms
    Specifies to execute the DCMT command on all or a list of data sharing group members.
    For more information about broadcasting and
    broadcast-parms
    , see the section How to Broadcast System Tasks.
Usage
CHAnge TRAcking displays the following attributes:
  • Current change tracking status
  • Target number of files to be maintained as active mirrors
  • Current delete option setting
  • Page count in effect for SYSTRK files
  • Summary of file content and space utilization
  • For each known SYSTRK file
    • DSName, filename, initial format date, page size and file size
    • Mirroring and usage status
Example
Output from the DCMT DISPLAY CHANGE TRACKING command shows the amount of space consumed by automatic tuning.
DCMT D CHANGE TRACKING Change Tracking - Status Delete PageCnt Target-FileCnt Actual-FileCnt ACTIVE OFF 21 4 2 SYSTRK contents Size PagCnt Pct Last Updated (time zone: UTC) DMCL + file information 36964 5 24% 2009-12-21-12.25.59.212961 Permanent area statuses 0 0 0% 2009-12-21-12.26.00.543069 Journal status overrides 0 0 0% 2009-12-21-12.25.59.234894 Autotune overrides 1400 1 5% 2009-12-21-15.14.15.539878 Control information 30192 4 19% N/A -------------------------- ------ ------ ---- Total: 68556 10 48% File Name MirrorStat MODE ErrStat PagSize PagCnt Fl-Type DD-Name SYSTRK2 ACTIVE Clos 0 7548 21 non-VSAM SYSTRK2 DSname: DBDC.SYSTEM73.SYSTRK2 DISP=SHR VOLSER:CULL05 FORMAT datetime (time zone: UTC) 2009-12-19-14.06.15.881502 CONTROL datetime (time zone: UTC) 2009-12-21-12.25.56.579801 SYSTRK1 ACTIVE Clos 0 7548 21 non-VSAM SYSTRK1 DSname: DBDC.SYSTEM73.SYSTRK1 DISP=SHR VOLSER:CULL05 FORMAT datetime (time zone: UTC) 2009-12-19-14.06.15.853321 CONTROL datetime (time zone: UTC) 2009-12-21-12.25.56.579801 Next value: 454 Current HWM: 14