HP NonStop G-Series - Manual (Page 17)

Chapter Four - Tape Cartridges
The Eject button is disabled and has no effect when pushed. It does not initiate an unload
sequence.
A
LOAD/UNLOAD
command with the LOAD bit set to zero takes the drive off-line and
unthreads the tape but does not eject the cartridge.
The effects of
PREVENT MEDIA REMOVAL
continue until an
ALLOW MEDIA REMOVAL
command is received or the drive is reset.
4.7 Forcing the Ejection of a Cartridge
Caution: You might lose data if you force an eject. The tape can end up invalidly formatted as End
of Data (EOD) might not have been written. Only force ejection as a last resort to recover
a cartridge or if you are not prepared to wait for the normal eject procedure and urgently
need to unload the cartridge, even at the risk of losing data.
Press the Eject button three times within a 5-minute period (or press the Eject button twice within 5
minutes after initiating a SCSI UNLOAD command). Hold the Eject button down for at least 5 seconds.
Following either of these actions, the drive waits 35 seconds from the first time that the Eject button is
pushed to give the normal eject procedure a chance to proceed. Once this period has elapsed, the drive
immediately unthreads the tape and ejects the cartridge, regardless of what operation it was performing..
The drive is then reset as though the power has been switched off and then on again.
Note:
Forced ejection overrides any SCSI
PREVENT MEDIA REMOVAL
command that is in effect can
abort any SCSI operations in process on the drive. If the host has previously sent a
PREVENT
MEDIA REMOVAL
command, the unloading action is different in two ways:
The Eject Button is disabled and has no effect when pushed. It does not initiate an unload
sequence.
A
LOAD/UNLOAD
command with the LOAD bit set to zero takes the drive off-line and
unthreads the tape but does not eject the cartridge.
The effects of
PREVENT MEDIA REMOVAL
continue until an
ALLOW MEDIA REMOVAL
command is received or the drive is reset.
HP StorageWorks DAT 72 (Model 5242-2SE) User's Guide
13 HP Part Number 528297-003 July 2005