If you choose to encrypt your object data, any partially filled non-encrypted tape volumes associated with an object storage group that you want to encrypt, should be marked full and not writable, so they are not selected. This is important because at the volume level all of the data on the tape is either encrypted or non-encrypted, and a mix of the two cannot reside on the same tape.

Because the 3592 Model E07 is downward write compatible only with EFMT3 and EEFMT3 (on MEDIA9 and MEDIA10), customers may need to mark any partially filled tapes "full " or "not writable" as they migrate to the newer 3592 drive technology and no longer have any devices capable of writing in the older formats. This includes partially filled MEDIA9 or MEDIA10 tapes written in EFMT2 or EEFMT2, and MEDIA5 through MEDIA8 tapes written in EFMT1, EFMT2, EEFMT2, EFMT3, or EEFMT3.

These items should be considered when planning to use TS1140 drives:

If the TS1140 devices are in an IBM tape library:

1. Follow the steps listed in OAM library support for OAM Library Support.
2. Add new data classes, specifying EFMT3 and EEFMT3 recording technologies.
3. Review ACS routines for STORE, or CTRANS, or both environments for any changes that may be necessary to ensure proper class assignment.

If the TS1140 devices are not in an IBM tape library, use device esoterics for STORAGEGROUP statements in the CBROAMxx member of PARMLIB for the Object storage groups that are to use the new devices. It is important to segregate in an esoteric the different 3592 devices to prevent allocating an inappropriate device for a volume written in the EFMT4 or EEFMT4 recording technology. Add new TAPEUNITNAME with the new device esoteric to the STORAGEGROUP statements in the CBROAMxx PARMLIB member for object storage groups or object backup storage groups that use the new devices.

All partially filled EFMT2 and EEFMT2 volumes (on MEDIA9 and MEDIA10) belonging to a storage group with TS1140 devices assigned need to be marked "full" or "not writeable", as the TS1140 is not downward write-compatible with these recording formats. This will prevent a TS1140 from being selected.