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Integrated catalog facility (ICF) and the tape configuration database z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Tape Libraries SC23-6867-00 |
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The integrated catalog facility (ICF) provides support for the
following tape configuration databases:
Note: The "hlq" and the "x" in the name of the volume catalog, hlq.VOLCAT.Vx, stand for high-level qualifier and reference to
valid character values (A–Z and 0–9) respectively. For information
on changing high-level qualifiers on VOLCATs, see z/OS DFSMS Managing Catalogs.
The following TCDB records are used in association with tape libraries:
Access method services provide users access to catalog entries for tape libraries and tape volumes, allowing them to create, alter, list and delete entries residing in the TCDB. However, access method services is used mainly as a recovery tool to repair damaged catalogs and should be used with caution whenever you create, alter, and delete TCDB entries. Incorrect use of this recovery tool can cause database (host, library manager, and tape management) conflicts. For example, IDCAMS ALTER can be used to change the use attribute of a volume in the TCDB, but it does not change the library manager’s inventory record or the tape management system’s database. When changing a volume’s use attribute, use CBRXLCS FUNC=CUA or ISMF volume ALTER to keep the databases synchronized. For more information concerning recovery of catalog entries, see Establishing recovery procedures. |
Copyright IBM Corporation 1990, 2014
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