ARCRPEXT—Input Data Structure

The first word of ARCRPEXT Parameter List points to the area described in Table 1.

Table 1. ARCRPEXT Input Data Structure
Offset	Length or Bit Pattern	Description
00 (X'00')	8	An identifier ('RPEXT001') of the level of interface to ARCRPEXT.
08 (X'08')	2	Type of request in the MWE: 1 (Recall) 2 (Delete) 3 (Recover)
10 (X'0A')	00.. ....	Request issued by the operator or generated by DFSMShsm.
	01.. ....	Request issued from batch environment.
	10.. ....	Request issued from interactive (TSO) environment.
	11.. ....	Request issued from TMP (TSO background job) environment.
	..00 ....	Reserved value.
	..01 ....	Recovering a data set.
	..10 ....	Restoring a volume from a dump (no incremental backups involved).
	..11 ....	Recovering a volume from incremental backups (possibly involving a volume restore).
	.... 1...	Issuer is waiting for results.
	.... 0...	Nonwait request.
	.... .1..	Data coming from tape.
	.... .0..	Data coming from DASD.
	.... ..1.	Device-type flag (above) is valid.
	.... ..0.	Device-type flag (above) is not applicable.
	.... ...1	Data set recovery is initiated by volume command processing.
	.... ...0	Data set recovery is initiated by data set command processing.
11 (X'0B')	1	Reserved.
12 (X'0C')	8	User ID from the MWE. (An ‘*’ in the first or second character identifies an internal user ID generated by DFSMShsm.)
20 (X'14')	44	Data set name, if the request is for a data set; otherwise, first byte is binary 0.
64 (X'40')	6	Volume serial number, if the request is (1) to recover or restore a volume, or (2) a data set recover initiated by a command to recover this volume (bit 7 of offset 10 is 1). Otherwise, first byte is binary 0.