These are scratch data sets for SMP/E and the utilities it calls.
They can be used instead of the following data sets when certain utilities
are called:
SYSIN
For invocations of the copy utility
For some invocations of update utility
For some invocations of the x37 RETRY COMPRESS
utility
SYSLIN for invocations of the link-edit utility
SYSUT2 for invocations of the assembler utility
SYSUT1 and SYSUT2 are also used by the GIMDTS service routine:
SYSUT1 points to the data set containing the input in its original
format.
SYSUT2 points to the data set containing the transformed output.
Attributes
Sequential; DISP=(NEW,DELETE)
Device
Direct access only.
Note:
BLKSIZE must not exceed 32760.
Do not specify BLKSIZE=0. SMP/E does not support system-determined
block size (SDB) for this data set.
If the BLKSIZE value is omitted or invalid, SMP/E uses a default
of 3200.
When processing partitioned data sets, GIMUNZIP dynamically
allocates SYSUT1 as a large format sequential data set (DSNTYPE=LARGE).