SMP/E SYSMOD:
Component:
Operating System:
Publish Date:
APAR & Description:
RI35001
SLC
z/OS
2024/12/04
For SLC, a change in RECFM, BLKSIZE and LRECL may occur when writing to an existing data set which was allocated NEW with EATTR=OPT and resides in the Extended Adressing Space (EAS) of an EAV volume.
Caused by a failure to obtain the data set's VTOC format-8 DSCB when attempting to ascertain the allocated RECFM, BLKSIZE and LRECL, this meant that SLC used default dataset geometry values.