Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Growing and shrinking a cache
You can use the vxcache command to increase the size of the cache volume that
is associated with a cache object:
# vxcache [-g diskgroup] growcacheto cache_object size
For example, to increase the size of the cache volume associated with the cache
object, mycache, to 2GB, you would use the following command:
# vxcache -g mydg growcacheto mycache 2g
To grow a cache by a specified amount, use the following form of the command
shown here:
# vxcache [-g diskgroup] growcacheby cache_object size
For example, the following command increases the size of mycache by 1GB:
# vxcache -g mydg growcacheby mycache 1g
You can similarly use the shrinkcacheby and shrinkcacheto operations to reduce
the size of a cache.
See the vxcache(1M) manual page.
Removing a cache
To remove a cache completely, including the cache object, its cache volume and all
space-optimized snapshots that use the cache:
1
Run the following command to find out the names of the top-level snapshot
volumes that are configured on the cache object:
# vxprint -g diskgroup -vne \
"v_plex.pl_subdisk.sd_dm_name ~ /cache_object/"
where cache_object is the name of the cache object.
2
Remove all the top-level snapshots and their dependent snapshots (this can
be done with a single command):
# vxedit -g diskgroup -r rm snapvol ...
where snapvol is the name of a top-level snapshot volume.
395Administering volume snapshots
Creating instant snapshots