The IMS Log Reader Capture will by default use the "current" time as starting point. Capture can also be started or restarted at a point-in-time by explicitly specifying the starting LSN in the IMS Log Reader Capture Agent configuration (.cab) file with JCL similar to sample member SQDCONIM included in the distribution.
sqdconf modify <cab_file_name>
--zlog=<log_stream_name>
[--lsn =<STCK.sequence_number>]| Keyword | Description |
|---|---|
| <cab_file_name> |
Must be specified and must match the name specified in the previous create command. |
| --zlog=<log_stream_name> |
The z/OS System LogStream created earlier. |
| [--lsn =<STCK.sequence_number>] |
Specifies a UTC timestamp and an IMS Log Sequence Number. The timestamp is a 16 hexadecimal digit time of day UTC clock value in IBM Store Clock (STCK) format. The Sequence Number is a 1 to 16 hexadecimal digit IMS log Sequence Number. The lsn 0 or 0.0 specifies "now" which is the default when this parm is not specified. |
-
Set the LSN to 0 (zero means current time) at the capture agent level for all DBD's) with the SQDCONF modify command.
//*---------------------------------------- //*- SET LSN AT GLOBAL LEVEL //*---------------------------------------- //SETLSN EXEC PGM=SQDCONF //SYSPRINT DD SYSOUT=* //SYSOUT DD SYSOUT=* //SQDPARMS DD * modify /home/sqdata/imscdc/imscdc.cab --lsn=0 //* - Set the LSN the first IMS Log Sequence Number for a specific IBM Store Clock (STKC) value with the SQDCONF modify command.
//*---------------------------------------- //*- SET LSN AT GLOBAL LEVEL //*---------------------------------------- //SETLSN EXEC PGM=SQDCONF //SYSPRINT DD SYSOUT=* //SYSOUT DD SYSOUT=* //SQDPARMS DD * modify /home/sqdata/imscdc/imscdc.cab --lsn=d011f1b94eb3e0c0.0 //*