The VOB storage directory
This topic describes the contents of a VOB storage directory. An understanding of these contents can be useful to anyone responsible for VOB storage maintenance.
A VOB storage directory and all of its contents are created as part of the VOB creation process. It can reside on a VOB host or on a supported network-attached storage device. The directory structure is visible when you use native operating system utilities to list the VOB storage directory and its subdirectories and files, which include the following:
- .pid
- A one-line text file that lists the process ID of the VOB’s associated vob_server process.
- admin
- A directory that contains administrative data related to the amount of disk space the VOB is using. Use cleartool space –vob or the DevOps Code ClearCase® Administration Console to display this data.
- vob_oid
- A one-line text file that lists the VOB’s object identifier (OID) expressed as a universal unique identifier (UUID). This UUID is the same for all the replicas in a VOB family. This value is also stored in the VOB’s database; do not change it.
- replica_uuid
- A one-line text file that lists the replica UUID of this particular replica of the VOB. Different replicas created with DevOps Code ClearCase® MultiSite have different replica UUIDs.
- .identity
- On hosts running Linux or the UNIX system, a subdirectory whose files establish the VOB’s owner and group memberships. See Access control for VOBs and objects they contain.
- identity.sd
- On Windows® hosts, a binary data file that contains the security descriptor for the VOB storage directory.
- groups.sd
- On Windows®, security descriptors of the VOB’s supplementary groups.
- s
- A subdirectory in which the VOB’s source storage pools reside.
- d
- A subdirectory in which the VOB’s derived object storage pools reside.
- c
- A subdirectory in which the VOB’s cleartext storage pools reside.
- db
- A subdirectory containing the files that implement the VOB’s embedded database.
- vob_server.conf
- A text file read by the vob_server at startup. It contains the setting for deferred deletion of source containers; deferred deletion is activated if you have turned on semi-live backup. See the vob_snapshot_setup reference page for more information.
- .hostname
- A text file that records the name of the VOB’s server host.
- .msadm_acls
- Stores the DevOps Code ClearCase® MultiSite administration server’s ACL