ARCRDEXT Parameter List

Table 1. ARCRDEXT Parameter List
Offset	Length or Bit Pattern	Description
00 (X'00')	4	The address of the MCD record. This is a copy of the MCD record that contains information about the data set being recalled. See z/OS DFSMShsm Diagnosis for the content of this record.
04 (X'04')	4	The address of a candidate list containing the number of volume serial numbers with like attributes or the eligible volumes in a user-defined pool.
08 (X'08')	4	The address of a fullword binary area containing the approximate allocated size of the data sets in units of 1024 bytes. The size is the amount of space required to recall the data set.
12 (X'0C')	4	The address of the choice list (see Figure 1). The choice list is a set of numbers that represent the position of volume serials in the target volume candidate list to which DFSMShsm can recall data sets. The installation exit places the choice of volumes on the list. The format of the list is an array of fullword binary fields.