Convert the BSDS, Db2 catalog, and directory to 10-byte RBA and LRSN format

Start of change If the bootstrap data set (BSDS) is not already converted to use the 10-byte RBA and LRSN fields, you must convert it before you start Db2 in Db2 12. By default, the BSDS of a Db2 11 subsystem is initialized to use 6-byte RBA and LRSN fields. End of change It is strongly recommended that you convert the catalog and directory to the 10-byte format before or soon after you convert the BSDS to the 10-byte format.

Before you begin

Attention: In Db2 subsystems that are not data sharing members, if Db2 is already at risk of reaching the 6-byte RBA limit, it is strongly recommended that you first convert all catalog and directory objects, then convert all user objects to the 10-byte RBA format, before migrating to Db2 12.

Procedure

Complete the following steps:

Run job DSNTIJCV to convert the Db2 catalog and directory table spaces and indexes to the 10-byte RBA or LRSN format.
If you run job DSNTIJCV in Db2 11, ensure that it allocates the Db2 11 SDSNLOAD module.

Do not rearrange the processing sequence and the table space groupings. The COPY and REORG steps use LISTDEF filtering to exclude table spaces that are already in extended format.
Job DSTNIJCV is customized when you run the Db2 installation CLIST for migration, as described in Generating tailored Db2 12 installation, migration, or function level activation jobs.
Convert the BSDS to use the extended 10-byte RBA and LRSN fields, as described in Convert BSDS records to the extended 10-byte format: DSNTIJCB.