Preventive methods for avoiding data loss

This topic presents methods for avoiding data loss.

Steps for preventing a full journal (damaged CDS)
Preventing a full journal (undamaged CDS)
Preventing structural damage to CDS and missing journal records
Preventing time sequence gaps in CDS records (journal records also missing)
Preventing overwritten migration tape or overwritten backup tape
Prepare for recovery of a head crash on an ML1 volume
Reestablishing access to previously deleted, migrated data sets (no backup exists, ML2 only)

Parent topic: DFSMShsm Storage Administration Guide