OAM attempts to keep collection name catalog entries current. However, OAM cannot keep the catalog entries current if the catalog entries do not exist or if the catalog is unusable (for example, because of I/O errors). Recovery of the catalog might be required. Standard catalog recovery procedures apply to recovering catalog entries for collection names. Those procedures usually involve making an image copy (for example, IDCAMS EXPORT) at certain intervals and restoring that copy (for example, IDCAMS IMPORT) to recover an unusable catalog.
If collection name catalog entries were added after the image copy was made, restoring an image copy does not complete the recovery; you must also recreate those added entries. When a collection name entry from the collection name table is lost, objects in that collection will not be processed in a storage management cycle. If you do not have a program or program product to apply a journal of those additions, you can use IDCAMS to recatalog those individual entries.
For further information on using IDCAMS with collection name entries in the catalog, see the z/OS DFSMS Access Method Services Commands.