NFS Services Administrator's Guide (5900-1632, August 2011)

cachefslog /cfs_mnt1
If logging has been enabled, the logfile is displayed.
Disabling Logging in CacheFS
You can use the cachefslog command to halt or disable logging for a CacheFS mount-point.
To disable CacheFS logging, follow these steps:
1. Log in as superuser.
2. To halt or disable logging for the same CacheFS mount-point, /cfs_mnt1, enter the following
command:
cachefslog -h /cfs_mnt1
NOTE: When multiple mount-points use the same cache directory, disabling logging for one
CacheFS mount-point automatically disables logging for all the other mount-points.
3. To verify if logging has been halted or disabled for /cfs_mnt1, enter the following command:
cachefslog /cfs_mnt1
If logging has not been enabled or if it has been halted, the following message is displayed:
not logged: /cfs_mnt1
Caching a Complete Binary
CacheFS is designed to work best with NFS filesystems that contain stable read-only data. One of
the most common uses of CacheFS is managing application binaries. These are typically read-only
and are rarely ever modified. They are modified when new versions of the application are installed
or a patch containing a modified binary is installed. The rpages mount option enables you to
cache a complete binary file.
When an application in a cached NFS filesystem is executed, CacheFS checks if the binary file is
cached. If it is not cached, then the client reads the entire binary file and automatically caches it.
If the rpages mount option is not used, only the accessed portion of the binary is cached. Using
the rpages mount option causes slower initial load times, but subsequent executions of the
application binary are significantly faster.
For example, to load the netscape binary, do the following:
1. To create a cache, if it does not exist, enter the following command:
cfsadmin -c /cachedir
2. To mount the cache filesystem, enter the following command:
mount -F cachefs -o backfstype=nfs,rpages,cachedir=/cachedir \
nfsserver:/opt/netscape /opt/netscape
3. To run the netscape binary in /opt/netscape, enter the following command:
/opt/netscape/netscape
The netscape binary and the files that netscape needs are cached and populated in the cache
directory /cachedir.
For more information on the rpages mount option, see mount_cachefs(1M).
Packing a Cached Filesystem
Starting with HP-UX 11i v3, the cachefspack command is introduced to provide greater control
over the cache. This command enables you to specify files and directories to be loaded, or packed,
in the cache. It also ensures that the current copies are always available in the cache.
Configuring and Administering CacheFS 85