Skip to Content

Running ACBGEN

You must run an ACBGEN to build a partitioned DMB for DBB regions and for the DBD on-line. Even though there are no changes to the PSBs in ACBLIB, ACBGEN rebuilds all the PSBs with PCBs for partitioned DBDs.

Rebuilding the DMB

When converting a DMB to partitioned, you can use a BUILD DMB ACBGEN to rebuild the DMB and any PSBs referencing that DMB. Alternatively, you can DELETE the DMB and then BUILD a PSB referencing the DMB.

Warning

Note

DELETE DMB also deletes any PSBs referencing the DMB. It is recommended using this option only when there are few PSBs in the ACB library or when you do not want to rebuild all of the PSBs using that DMB until later.

It is important that you add the partitioned DMB or replace the existing DMB in the ACB library. In addition, if the ACBGEN results in any return code other than zero, be sure there are no messages to indicate that the partitioned DMB was not replaced. Otherwise, BMC AMI Partition Facility for IMS will use a nonpartitioned DMB, which will result in database errors.

Using Partitioned DMBs

Only IMS systems with BMC AMI Partition Facility for IMS installed can use partitioned DMBs built by ACBGEN. After ACBGEN builds a partitioned DMB, install BMC AMI Partition Facility for IMS on all IMS systems using that ACB library.

Making On-Line Changes

After running the ACBGEN to define a partitioned database definition, you must perform an on-line change to introduce the new DMB into the on-line systems without requiring a restart. You must dynamically allocate the database or you will be required to restart the system to get the new DD statements.

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*

BMC AMI Partitioned Database Facility for IMS 9.1.00