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Appendix C Automatic Drive Cleaning

Supervising the Drive Cleaning Operation

ATL P2000 Series Automated Tape Library User’s Guide 103

Supervising the Drive Cleaning Operation

When a cleaning cartridge is placed into a drive, the drive loads

the cartridge and initiates the cleaning operation. The library is still

available to service host-initiated commands during the drive

cleaning operation.

If the host attempts to move a cartridge into the drive that is being

cleaned, a check condition is set in the returned status byte and a

subsequent Request Sense returns a Cleaning Cartridge Installed

status (SK=5 ASC=30 ASCQ=03).

Upon completion of the cleaning operation, the drive rewinds and

unloads the cleaning cartridge.

If a drive does not complete the cleaning operation and unload the

cleaning cartridge within five minutes, the library classifies the

cartridge as defective.

The library monitors the drive “HANDLE_OK” flag to determine

when the cleaning cartridge has been unloaded.

Media Movement from the Drive

Whether a cleaning operation is successful or unsuccessful, the

library increments the cleaning cartridge’s “use count” and

attempts to move the cleaning cartridge back to its home location.

If an export or movement operation cannot be completed due to

unrecoverable errors, the library attempts to return the cleaning

cartridge to its original storage element to clear the transport

element. If an unrecoverable error occurs during the movement of

a cleaning cartridge that prevents a subsequent host-initiated

command from completing, a check condition is set in the returned

Note:

Unsuccessful drive cleaning operations may not rewind

and unload the cartridge, especially if it is a data

cartridge incorrectly labeled as a cleaning cartridge.

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Quantum P2000 Betriebsanweisung Seite 123