NFS Services Administrator Guide (5900-3045, March 2013)

mount | grep -w "cachedir=/disk2/cache" | awk '{print $1}'
An output similar to the following is displayed if CacheFS mount-points are using the cache
directory:
/mnt
/mnt1
3. To unmount the CacheFS mount-points, /_mnt, and /_mnt1, enter the following commands:
umount /mnt
umount /mnt1
4. To delete the CacheFS filesystem corresponding to the Cache ID from the specified cache
directory, enter the following command:
cfsadmin -d CacheID cache-directory
5. To verify if the CacheFS filesystem is deleted, enter the following command:
cfsadmin -l cache-directory
An output similar to the following is displayed:
cfsadmin: list cache FS information
maxblocks 90%
minblocks 0%
threshblocks 85%
maxfiles 91%
minfiles 0%
threshfiles 85%
maxfilesize 3MB
srv01:_tmp:_mnt1
In this example, the filesystem with CacheID srv01:_tmp:_mnt filesystem has been deleted.
To delete a cache directory and all the CacheFS filesystems in that directory, enter the following
command:
cfsadmin -d all cache-directory
Using CacheFS
After the administrator has configured a cache directory and mounted or automounted the CacheFS
filesystem, you can use CacheFS as you would any other filesystem.
The first time you access data through CacheFS, an over-the-wire call is made to the NFS server
and the data is copied to your local cache. The first request is slow. However, all subsequent
accesses are faster as they are served from the local cache.
Displaying CacheFS Statistics
The cachefsstat command displays statistical information about the mounted cache filesystem.
This includes the number of cache hits, cache misses, consistency checks, and modification
operations, such as writes and creates. The cachefswssize command displays the working set
size. The working set size includes information on the amount of cache space that each filesystem
in a cache directory uses. It can also be used to display the contents of the logfile. The logfile
created when you enable logging is used as an input to calculate the working set size.
Viewing the CacheFS Statistics
In the following example, /home/smh is the CacheFS mount-point. To view the CacheFS statistics,
enter the following command:
cachefsstat /home/smh
An output similar to the following is displayed:
/home/smh
cache hit rate: 20% (2543 hits, 9774 misses)
consistency checks: 47842 (47825 pass, 17 fail)
90 Configuring and Administering a Cache Filesystem