The save file of a long-term archive for node files of BS2000-UFS can be automatically duplicated if the long-term archive concerned was assigned a shadow archive. For HSMS administrators the automatic duplication mechanism must also be activated. I.e. in the OPERATION-CONTROL operand of the HSMS statement ARCHIVE-NODE-FILES, the value *ALLOWED must be specified for SHADOW-COPY (default setting).
The save file is copied into the assigned shadow archive at the end of the archival run. The copy in the shadow archive is given the same save version ID and save file ID as the original, i.e. it receives the same time stamp.
If a save file in a long-term archive is to be extended, the automatic duplication mechanism also attempts to extend the save file with the same SFID in the assigned shadow archive.
If the tape copy is placed in a specially protected room immediately after the shadow archive has been backed up a new save file must always be generated in the shadow archive, also when the save file in the main archive is updated. This mode is set using the archive attribute SHADOW-COPY=*ALLOWED-AND-NEW-SFID.