DFS4593E ACBSHR=Y IS SPECIFIED, BUT THE DIRECTORY DATA SET IS FOR A NON SHARED IMS SYSTEM.
Explanation
This IMS system is configured to share application control blocks (ACBs) with other IMS systems
in an IMSplex, by a specification of ACBSHR=Y in either the
DFSCGxxx member or the DFSDFxxx member of the
IMS.PROCLIB data set. However, the sharing attribute indicators in the IMS
directory data set member DFSIMSL indicate that the IMS directory is set up for exclusive use by
another IMS system.
System action
IMS terminates abnormally with abend U0071.
System programmer response
Confirm that the ACBSHR parameter is correctly specified in the restarting IMS system. The ACBSHR
parameter might be specified in either the DFSCGxxx member or the
DFSDFxxx member of the IMS.PROCLIB data set.
If the ACBSHR specification in the PROCLIB member is incorrect, change the specification to ACBSHR=N.
If the ACBSHR specification in the PROCLIB member is correct, either the restarting IMS system is referencing the wrong IMS catalog, or the IMS catalog was not set up with the correct ACBSHR specification.
If the IMS system is referencing the wrong IMS catalog, specify the alias name of the correct IMS catalog on the ALIAS parameter in the <CATALOG> section of the DFSDFxxx member of the restarting IMS system.
The IMS directory sharing attributes are maintained in the DFSIMSL member in the IMS directory and were initially set by the first IMS system that used the IMS directory. The sharing attributes were set based on the conditions that existed when the first IMS that was using the directory data sets was started. If the first IMS had specified ACBSHR=Y, had a COMMON_SERVICE_LAYER section in the DFSDFxxx member, and had specified RMENV=Y in that section, then the directory sharing attributes were set to allow the directory to be shared by other IMS systems. Only IMS systems specifying ACBSHR=Y are allowed to use such a directory.
If the first IMS did not meet all of those conditions, either by specifying ACBSHR=N or did not have a COMMON_SERVICE_LAYER section in the DFSDFxxx member or had specified RMENV=N, then the directory sharing attributes were set to allow only use by the first IMS. No other IMS is allowed to share the directory.
If the directory sharing attributes need to be changed, the first IMS system that set the sharing attributes in the DFSIMSL member must be configured to satisfy the conditions for sharing the directory and then that IMS system must be restarted.