ARC0860E

Explanation
 An error occurred in either accessing the multiple-host
processor control record (MHCR) in the migration control data set
or in initially setting up space monitoring that disabled space monitoring
of the specified data set. The return code retcode describes
the error condition. For retcode values, see Table 6. 

System action
 DFSMShsm space monitoring of the migration
control data set, backup control data set, offline control data set,
or journal is disabled. The DFSMShsm functions of migration, backup, fast replication backup, dump, and recycle are
held.

Operator response
 When the problem has been corrected or the
message is no longer needed, take the following action to delete the
message:  If the message identifier is not available, issue the DISPLAY
R,I command to get the ID.
To delete the message, issue the following command using the message
identifier obtained from the above DISPLAY R,I command for the id:
 CONTROL C,I,id

Programmer response
 The problem with the multiple-host processor
control record (MHCR) in the migration control data set should be
corrected through the VSAM recovery process that is required. Note
that while space monitoring is disabled, the multiple-host processor
control record (MHCR) is not accumulating space use statistics. The
record must be brought up to date by deleting it (DFSMShsm creates a new one).
In this case, DFSMShsm obtains space use data
from the VSAM catalog. For a return code of 28, you might have to
reallocate the data set using the IDCAMS EXPORT and IMPORT commands
or copy it using the IDCAMS REPRO command. Note that in a multiple
processing unit environment, the only way to ensure that the catalog
space use statistics are accurate is to reallocate or copy the data
set by using IDCAMS EXPORT and IMPORT commands or the REPRO command.

Source
 DFSMShsm