VERITAS Storage Foundation 4.1 Release Notes

VERITAS Storage Foundation Release Notes
New and Enhanced Features
15
Note To use storage checkpoint file system restore, a VxFS license is required to enable storage
checkpoints.
File Change Log
The VxFS File Change Log (FCL) tracks changes to files and directories in a file system. The FCL
can be used by applications, such as backup products, webcrawlers, search engines, indexing
engines, and replication software that typically scan an entire file system searching for
modifications since a previous scan.
There is one new command associated with this feature:
There are three new tunable parameters associated with this feature:
See the vxtunefs(1M) online manual page for more information on tunable parameters.
The FCL feature includes the following function in the API:
Note FCL functionality is available with the Online JFS 4.1 license.
Reverse Name Lookup
The reverse path name lookup feature obtains the full path name of a file or directory by providing
an inode number as an argument to the vxlsino administrative command. Reverse path name
lookup can be useful in a variety of applications, such as for clients of the VxFS File Change Log
feature, in backup and restore utilities, and in replication products.
There is one new command associated with this feature:
fcladm VxFS File Change Log administration utility.
fcl_keeptime Specifies the minimum amount of time that the VxFS File Change Log
(FCL) keeps records in the log.
fcl_maxalloc Specifies the maximum amount of space that can be allocated to the
FCL.
fcl_winterval Specifies the interval that must elapse before the FCL records
subsequent writes to a file.
vxfs_fcl_sync Sets a synchronization point in the VxFS File Change Log.
vxlsino VxFS reverse path name lookup utility.