If the cache area spans more than one device, you can remove one of the devices from the cache area.
To remove a device from a cache area
If you shrink a VxFS cache area, all of the cached data (including statistics) might be evicted.
# sfcache resize newsize cachearea_name
For example, suppose the current cache area sfcachearea_1 has a maximum size of 5G. You want to remove an SSD ssd0_0 that is 2G. First, resize the cache area to 2.5G:
# sfcache resize 2.5g sfcachearea_1
# sfcache rmdev [daname ...]
For example, to remove the SSD ssd0_0:
# sfcache rmdev ssd0_0
# sfcache resize maxsize cachearea_name
# sfcache resize maxsize sfcachearea_1