To be sure that a tape cartridge is format-ready, this section introduces a new option,  -E , to  the  ltfsee pool remove  command. When run, this command checks whether the tape  cartridge contains any active data. If all the files in the tape cartridge have already been  deleted in GPFS, the command determines that the tape cartridge is effectively empty and  removes the tape cartridge from the pool. If the tape cartridge still has active data, the  command will not remove it. No  reconciliation  command is necessary before this  command. When  -E is run, the command performs the following steps: Example 7-45 shows the output of the  active file check -E command with three tape  cartridges. VTAPE3L5 is an empty tape cartridge. VTAPE4L5 and VTAPE5L5 have files  migrated to them and all corresponding GPFS stub files deleted, but reconciliation has not  yet been performed. In Example 7-46, VTAPE7L5 has files migrated to the tape cartridge, but all corresponding  GPFS stub files have been deleted. VTAPE8L5 has active renamed data whereas  VTAPE9L5 has active data. Upon running the  -E  command, only VTAPE7L5 is removed.  VTAPE8L5 and VTAPE9L5 will not be removed. 1. Determine whether the specified tape cartridge is in the specified pool and is not mounted. 2. Reserve the tape cartridge so that no migration will occur to the tape. 3. Read the volume cache (GPFS file) for the tape cartridge. If any file entries exist in the  volume cache, check whether the corresponding GPFS stub file exists, as-is or renamed.  This is the same check routine as the current reclaim  -q  (quick reconcile) command. 4. If the tape cartridge is empty or has files but all of them have already been deleted in  GPFS (not renamed), remove the tape cartridge from the pool. 5. If the tape cartridge has a valid, active file, the check routine aborts on the first hit and  goes on to the next specified tape cartridge. The command will not remove the tape  cartridge from the pool. Example 7-45 Removing tape cartridges from pool with active file check Example 7-46 Tape cartridges containing active data are removed from the pool [root@io0 src]# /opt/ibm/ltfsee/bin/ltfsee pool remove -p pool1 -l lib1 -t  VTAPE3L5 -t VTAPE4L5 -t VTAPE5L5 -E GLESL584I(00820): Reserving tapes. GLESS135I(00851): Reserved tapes: VTAPE3L5 VTAPE4L5 VTAPE5L5 . GLESL043I(00881): Removing tape VTAPE3L5 from storage pool pool1. Removed tape VTAPE3L5 from pool pool1 successfully. GLESL043I(00881): Removing tape VTAPE4L5 from storage pool pool1. GLESL575I(00907): Tape VTAPE4L5 contains files but all of them have been  deleted in GPFS. GLESL572I(00938): Removed tape VTAPE4L5 from pool pool1 successfully. Format  the tape when adding back to a pool. GLESL043I(00881): Removing tape VTAPE5L5 from storage pool pool1. GLESL575I(00907): Tape VTAPE5L5 contains files but all of them have been  deleted in GPFS. GLESL572I(00938): Removed tape VTAPE5L5 from pool pool1 successfully. Format  the tape when adding back to a pool. GLESS137I(00980): Removing tape reservations. [root@io0 archive]# ltfsee pool remove -p pool1 -t VTAPE7L5 -t VTAPE8L5 -t  VTAPE9L5 -E GLESL584I(00820): Reserving tapes. 152  IBM Spectrum Archive Enterprise Edition V1.2.6: Installation and Configuration Guide