Specifying the MVSLOG command with the CA keyword

Specifying the MVSLOG command with the CA keyword indicates to CICS® VR that the VSAM spheres are to be recovered entirely from change accumulation data sets. The names of the change accumulation data sets that CICS VR uses during forward recovery must be specified in the DWWLOG DD statement of the recovery job JCL. Only change accumulation data sets listed in the DWWLOG DD statement are used during forward recovery processing when the MVSLOG command is specified with the CA keyword.

In general, specify in the DWWLOG DD statement all change accumulation data sets that:

contain information about the VSAM spheres being recovered.
were created after the backups that were used to restore the VSAM spheres at the remote recovery site were taken.

If you are performing CICS VR SHADOW processing, specify in the DWWLOG DD statement all change accumulation data sets that:

Contain information about the VSAM spheres being recovered.
Were created after the last SHADOW job for the spheres was run.

The change accumulation data sets are listed in ascending order with the CA data set that contains the earliest time stamp listed first. For example, the following change accumulation data sets for a CA group were created on the dates shown here:

SAMPLE.CA.DATASET.ONE        03.145 09:15:2003                 
SAMPLE.CA.DATASET.TWO        03.146 10:12:2003                     
SAMPLE.CA.DATASET.THREE      03.147 11:14:2003

Those CA data sets are displayed in the DWWLOG DD statement in ascending order, as follows:

 //DWWLOG   DD DSN=SAMPLE.CA.DATASET.ONE,DISP=SHR                         
 //         DD DSN=SAMPLE.CA.DATASET.TWO,DISP=SHR      
 //         DD DSN=SAMPLE.CA.DATASET.THREE,DISP=SHR

Note: When the MVSLOG command is specified with the CA keyword, the APPLYCA keyword is ignored by CICS VR. Do not specify the APPLYCA keyword when the MVSLOG command is specified with the CA keyword.