Use job DSNTIJIN to define the VSAM and non-VSAM data sets
for Db2.
Before you begin
Before you define
the system data sets, ensure that you have defined an SMS environment
for data sets that are associated with the Db2 catalog
and directory. Data sets for the Db2 catalog
and directory are managed by Db2 and must
be SMS-managed. The SMS environment that you use for Db2 catalog
and directory data sets must be established before you begin installation
or migration to Db2 12. The
SMS environment must include a data class for allocating the data
sets in extended format and using extended addressability.
Procedure
To define system data sets:
- Check the DEFINE CLUSTER statements in job DSNTIJIN
to ensure that they allocate adequate disk space for your system.
Recommendation: For recovery purposes,
place system data sets such as the Db2 recovery
log and the VSAM catalog on different disk volumes. Because these
data sets are used frequently, do not migrate them by using DFSMShsm.
- Run job DSNTIJIN.
If DSNTIJIN
runs successfully, it produces return codes of 0 for all DEFINE statements
and steps. Check any VSAM messages carefully.
- If job DSNTIJIN fails or abends, complete the
following steps:
- Remove the z/OS® catalog
delete statements from job DSNTIJDE.
- Run job DSNTIJDE. This job deletes the previously created
data sets for the Db2 directory
and Db2 catalog.
- Run DSNTIJIN again.