ARCMVEXT Parameter List

Table 1. ARCMVEXT Parameter List
Offset	Length or Bit Pattern	Description
00 (X'00')	4	The address of a 6-byte volume serial number of the volume that DFSMShsm space management has just processed.
04 (X'04')	4	The address of a 4-byte UCBTYP field at offset X'10' in the UCB of the volume that DFSMShsm space management has just processed. This is the device type.
08 (X'08')	4	The address of a fullword binary fragmentation index of the volume that DFSMShsm has just processed. The value is calculated after data sets are migrated or deleted. The index value is a number between 0 and 1000 where 0 represents an unfragmented volume and 1000 represents a totally fragmented pack.