Using the DSE parameter with the TAPEMNT command

For a Tape Manager catalog, the DSE and NODSE parameters on the TAPEMNT command can be used to set the Data Security Erase (DSE) attribute of the volume being mounted.

  • For read only volume-specific mounts, the parameters are ignored and the DSE setting of the volume is not changed.
  • For read-write volume-specific mounts and for scratch mounts, the parameters are respected regardless of the default DSE setting of the pool.

The table below shows the results for various DSE combinations:

Table 1. Results of DSE combinations
Type of mount TAPEMNT DSE parameter Pool DSE default setting Volume DSE setting before TAPEMNT Volume DSE setting after TAPEMNT
Scratch mounts DSE any NODSE DSE
  NODSE any NODSE NODSE
  not specified DSE NODSE DSE
  not specified NODSE NODSE NODSE
Volume-specific read-write mounts DSE any any DSE
  NODSE any any NODSE
  not specified DSE DSE DSE
  not specified DSE NODSE DSE
  not specified NODSE DSE DSE
  not specified NODSE NODSE NODSE
Volume-specific read only mounts any any DSE DSE
  any any NODSE NODSE
  not specified any DSE DSE
  not specified any NODSE NODSE