HP LTO 4 SCSI, LTO 4 FC, LTO 4 SAS manual

	Flag	Type	Set	Recommended Host Message		Cause
19	Nearing media	I		The tape cartridge is nearing the end		The tape may have
	life			of its calculated life. It is		exceeded its specified
				recommended that you:		number of passes.
				1.	Use another tape cartridge for
					your next backup.
				2.	Store this tape cartridge in a safe
					place in case you need to restore
					data from it.
Flags for Cleaning Management
20	Clean now	C		The tape drive needs cleaning:		The tape drive has detected
				If the operation has stopped, eject		that it needs cleaning. The
						flag is cleared internally
				the tape and clean the drive.
						when the drive is cleaned
				•	If the operation has not stopped,	successfully.
					wait for it to finish and then clean
					the drive.
				•	Check the tape drive user’s
					manual for cleaning instructions.
21	Clean periodic	W		The tape drive is due for routine		The drive is ready for a
				cleaning:		periodic cleaning.
				1.	Wait for the current operation to
					finish.
				2.	Use a cleaning cartridge.
				3.	Check the tape drive user’s
					manual for cleaning instructions.
22	Expired	C		The last cleaning cartridge used in		The cleaning tape has
	cleaning media			the tape drive has worn out:		expired.
				1.	Discard the worn-out cleaning	The flag is set when the tape
					cartridge.	drive detects a cleaning
				2.	Wait for the current operation to	cycle was attempted but was
					finish.	not successful. It is cleared
				3.	Use a new cleaning cartridge.	internally when the next
						cleaning cycle is attempted.
23	Invalid cleaning	C		The last cleaning cartridge used in		An invalid cleaning tape
	cartridge			the tape drive was an invalid type:		type was used.
				1.	Do not use this cleaning cartridge
					in this drive.
				2.	Wait for the current operation to
					finish.
				3.	Use a valid cleaning cartridge.

82 Exception handling

HP restricted