you might be having problems with these settings: # run expire if there are under this number of inodes in the cache partition minFilesFreePercent 90 # expire if there are under this number of blocks free in the cache partition minBlocksFreePercent 90 it is named badly. it means that if the disk goes over 90% usage (on blocks or inodes), it will immediately expire until that value is satisfied. i think the default is too low (30), so if your disk is more than 30% used it will always trigger an expire.
