ARC0756I

Explanation
 While DFSMShsm was recovering a volume, an attempt
was made to recover generation data group (GDG) information in a VSAM
catalog. The data set containing the VSAM catalog data could not be
allocated. The volume serial number of the volume being recovered
is volser.
 The values for reascode are:
 Reascode
Meaning
4
Allocation of the volume failed.
6
No VCAT copy data set exists.
8
An open error occurred.
10
The required backup volumes are not available.
12
A read error occurred.
16
A GETMAIN failure occurred.
20
An MCT read failure occurred.
25
An invalid unit type from MCT (X) record.
26
Unsupported device type.
28
DFSMShsm has
written on this tape volume in single-file format.
31
For DFSMShsm V1R5
or higher, the CDS records for the volume indicate that the data was
written in CAPACITYMODE(EXTENDED), but the input unit that was recorded
in the CDS is not capable of CAPACITYMODE(EXTENDED) operation. For DFSMShsm V1R4,
this release does not support CAPACITYMODE(EXTENDED).

54
Installation-wide exit abnormally ended.
60
Setup of an ESTAE around the open failed.
68
The POINT macro failed while opening a single-file format tape
data set.

System action
 The recovery of the GDG base entries ends. DFSMShsm processing
continues.

Programmer response
 Inspect
the return code and the reason code from the previous DFSMShsm messages.
Make the necessary corrections and retry the recovery operation.
 For
reason code 31 in DFSMShsm V1R5
or higher, use the QUERY SETSYS command (see message ARC0418I on page ARC0418I) to check the CAPACITYMODE setting
of the input unit. The unit should show CAPACITYMODE(COMPATIBILITY)
or CAPACITYMODE(EXTENDED).
 For reason code 31 in DFSMShsm V1R4,
use DFSMShsm V1R5
or higher for the operation.

Source
 DFSMShsm