Serialization of DFSMShsm functional processing

Serialization is required to ensure that only one processor at a time can process DFSMShsm-owned data. There is no cross-system protection without GRS-type processing.

Table 1 describes the resource names for DFSMShsm processing when it is protected by GRS.

Table 1. DFSMShsm Resource Names
Major (qname) Resource Name	Minor (rname) Resource Name	Serialization result
ARCENQG	ARCL1L2	This enqueue allows only one DFSMShsm host to perform level 1 to level 2 migration.
	ARCMCLN	This enqueue allows only one DFSMShsm host to perform migration cleanup.
	ARCBMBC	This enqueue allows only one DFSMShsm host to move backup versions.
	RECYC-L2	This enqueue allows only one DFSMShsm host to perform recycle on ML2 tape volumes.
	RECYC-SP	This enqueue allows only one DFSMShsm host to perform recycle on spill tape volumes.
	RECYC-DA	This enqueue allows only one DFSMShsm host to perform recycle on daily tape volumes.
	EXPIREBV	There is a limit of one instance of the EXPIREBV command in an HSMplex.