Resolving recording technology conflicts for TS1140

3592 Model E05 (TS1120) devices, 3592 Model E06 (TS1130) devices, and 3592 Model E07 (TS1140) devices can all write to MEDIA9 and MEDIA10 media types. However, conflicts occur when an EFMT4 or EEFMT4 formatted cartridge is mounted on a 3592 Model E05 or 3592 Model E06 and is being relabelled or reused.

The OPEN and EOV routines can resolve these recording technology conflicts if you meet these conditions:

Set OPEN for output to the first file
Specify VOLNSNS=YES in the DEVSUPxx member of PARMLIB
Position the tape cartridge at the load point.

If these conditions are met and if the cartridge has an internal volser recorded in its volume control region, OPEN and EOV routines rewrite the VOL1 label with the volume identifier in the sense data.

Note: To enable this support, make sure that the 3592 Model E05 and 3592 Model E06 devices are at the appropriate microcode level, so that an up-level (MEDIA9 and MEDIA10) volume can have its volume identifier returned in the sense data.

For additional information about resolving recording technology conflicts, see z/OS DFSMS Using Magnetic Tapes and z/OS DFSMS Installation Exits.