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24 Ultrium Drives in Libraries
If the cleaning cartridge ejects immediately, it has expired or it is not an
Ultrium cleaning cartridge (or is an older Ultrium Generation 1 cleaning
cartridge manufactured by a vendor other than HP). In this case, discard
the cleaning cartridge and repeat the operation with a new one.
The cleaning cycle can take up to 3 minutes. During it the orange ‘Clean’
LED will be on and the green ‘Ready’ LED will flash. When it has finished,
the drive ejects the cartridge.
2 Remove the cleaning cartridge from the drive.
Resetting Drives
The tape drive can be reset by the automation controller via the ACI Reset
command or by pulling the ACI_RST_L line low (see page 101).
There are two levels of reset via the ACI interface:
3
ACI reset—resets the ACI port and all SCSI parallel ports
3
Drive reset—equivalent to a power-on reset
Either reset method will interrupt the interface between the drive and host. An
ACI reset may result in no End of Data mark being written. As a result, it is
strongly recommended that an ACI reset command is not sent unless all other
recovery methods have failed. Note that certain ACI commands (Load,
Unload, Set Drive Configuration, Reset and Set Baud Rate) can be queued
behind outstanding SCSI commands giving the impression that the drive has
stopped responding over the ACI bus. (All command packages will be still be
ack’ed even though the command will be queued.)
Following an ACI Reset command with reset control set to Drive Reset or after
pulling the ACI_RST_L line low, the drive will behave as if it has powered up
and will go off bus and lose all ACI configurations.
A SCSI interface reset will not affect the ACI interface.
Note that following an upgrade of the drive firmware either via tape or SCSI
the drive will be reset as if it had been powered up.