Using checkvob to find and fix internal VOB inconsistencies
A VOB storage directory contains a VOB database and a number of
storage pools. Any operation that modifies VOB data makes changes to the database
and at least one pool. When inconsistencies arise between the contents of
a VOB database and the contents of its pools, VOB data integrity may be damaged.
There are two main causes of inconsistencies between a VOB's database and
pools:
- A VOB is restored from a backup that backed up the database and the pools
at different times. Backups made with the vob_snapshot utility
fall into this category. In the most common case, the pools are backed up
after the database, and may contain data that the database does not reference.
- A system or network failure prevents a Rational® ClearCase® operation
from completing properly, which can leave unreferenced data containers in
the pools.
For more information, see the checkvob reference page.