Inactive files in volumes in an active-data pool are deleted by reclamation processing. The rate at which reclaimable space accumulates in active-data pool volumes is typically faster than the rate for volumes in non-active-data pools.
If reclamation of volumes in an active-data pool is occurring too frequently, requiring extra resources such as tape drives and libraries to mount and dismount volumes, you can adjust the reclamation threshold until the rate of reclamation is acceptable. The default reclamation threshold for active-data pools is 60 percent, which means that reclamation begins when the storage pool reaches 60 percent of capacity. Accelerated reclamation of volumes has more of an effect on active-data pools that use removable media and, in particular, on removable media that is taken off-site.