How the Snapshot Accessory Works

The Snapshot Accessory takes an image of specified data sets in a DMSII database and places the images in host data files (to DISK or TAPE), as follows:

global db linked file template

Note the following when using Snapshot:

  • Each run of Snapshot lets you clone an unlimited number of data sets in a single DMSII database.
  • Snapshot does not support links and will discard any link values it receives.
  • To update the cloned database, you must reclone entire data sets. Alternatively, you can create a fixed-up extraction of the database using Snapshot and then use the Span Accessory to do the updates. See Chapter 6, “Span Accessory.”