CA Dynam for VSE User Guide

DYNINFO Parameter List
28 insufficient length for all volumes
32 syntax error (DYNRQDSN all spaces or DYNRQDVC invalid)
GV
Initiates or continues a scan of the Catalog in volser sequence starting at the
first volume whose volser matches the partial key supplied in DYNRQVOL up to
the first blank.
Required fields:
Optional fields:
DYNRQVOL
DYNRQPSW
Return codes:
6 volume is scratch - no active data sets
16 password protected data set
24 no more volumes
32 syntax error (DYNRQVOL all spaces)
NF
Is used after an SV, GV, DV, or NF call to return the next file on a multifile
tape volume without reaccessing the volume information. It is functionally
equivalent to a DV with the DYNRQFSQ value incremented by one, but is
significantly faster. DYGFILSQ indicates the actual file sequence number
returned.
Required fields:
Optional fields:
None
None
Return codes:
16 password-protected data set
26 no more files for volume
32 syntax error (previous command was not SV, GV, DV, or NF)
NG
Is used after a SD, GD, DD, NX, or NG call to return the next generation for
the data set without reaccessing the data set information. It is functionally
equivalent to a DD call with DYNRQVER incremented by 1, but is significantly
faster. If DYNRQDVC is specified, only data sets and versions of the specified
device class will be returned. If DYNRQVER is nonblank, it will be validated as
a packed field. A valid packed number is assumed to be the number of
versions retrieved for this data set so far, and is incremented by one. It is not
used in any other way. Scratched, test and invalid generations are ignored and
do not count in calculating the relative generation number.
Required fields:
Optional fields:
None
DYNRQDVC, DYNRQVER
Chapter 10: Accessing the Catalog 10–9