Encrypting full-function OSAM database linear data sets (non-HALDB, or not OLR-capable)

You can use this procedure to convert OSAM data sets to VSAM LDSs offline for all OSAM databases.

To convert OSAM data sets to VSAM LDSs offline:

Procedure

  1. Preallocate the new database data sets as VSAM linear data sets.
  2. Take the database offline, for example: /DBR DB, UPDATE DB STOP(ACCESS)
  3. Run the HD reorganization unload utility (DFSURGU0).
  4. Run the HD reorganization reload utility (DFSURGL0) to reload to the LDS data sets.
  5. Rename the old (original) data sets to a backup name.
  6. Rename the new data sets to the correct database data set names.
  7. Bring the database online, for example: /STA DB, UPDATE DB START(ACCESS)
  8. Preallocate the output data sets to use a key label. See Data set encryption support for IMS for more information.