About disabled partitions

In a RECON listing, the flag PARTITION DISABLED=YES identifies a partition as disabled. The HALDB Partition Definition utility identifies a disabled partition by showing its status as DISABLED.

In most situations, a disabled partition is not known to IMS and is treated as if it is not registered in the RECON data set. However, you can still view all information about a disabled partition by using either the DBRC LIST command or the HALDB Partition Definition utility (%DFSHALDB). A disabled partition still counts towards the maximum number of partitions that can be defined for a HALDB database.

Disabled partitions are not removed from the DBRC groups CAGROUP, DBDSGRP, DBGROUP and RECOVGRP; however, disabled partitions are generally not processed as part of a group when the group is used in a DBRC command. This is also true of implied groups used in a command. An exception to this is that changes are accumulated for disabled partitions that are members of a change accumulation group when you issue the GENJCL.CA command and execute the IMS Database Change Accumulation utility.

The GENJCL.IC and GENJCL.RECOV commands fail for disabled partitions. If the commands specify a group of any kind, disabled partitions are simply skipped, JCL is not generated and no message is issued.

//CHGPART JOB
...
...
//SYSIN DD *
CHANGE.PART DBD(DB3) PART(PART3) DISABLE
/*