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Appendix C Automatic Drive Cleaning

Media Movement to the Drive

102 ATL P2000 Series Automated Tape Library User’s Guide

Media Movement to the Drive

When a cleaning cartridge is selected, the library moves it to the

drive requiring cleaning. If the movement operation is not

completed due to an unrecoverable error, the drive cleaning

operation does not proceed, and the library returns the cleaning

cartridge to its original storage element. If an unrecoverable error

occurs when moving a cleaning cartridge that prevents a

subsequent host initiated command from completing, a check

condition is set in the returned status byte and a subsequent

Request Sense returns the appropriate error (such as Transfer

Element Full). Since the drive still indicates that it needs cleaning, a

new drive cleaning operation is attempted.

If a library-initiated cleaning cartridge movement is in progress

and the host issues a command that requires the use of the

transport, the host-initiated command is held until the library-

initiated movement is completed. If an error occurs with the

library-initiated movement, the host initiated command is

processed following the error. If a subsequent error occurs, a check

condition will be set in the returned status byte and a subsequent

Request Sense will return the appropriate error code.

If the host attempts to move a cartridge to a cleaning cartridge’s

home location while the cleaning cartridge is being used in a

cleaning operation, the Move Medium command fails, 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). The cleaning cartridge’s original location is

not available until either the library determines that the cleaning

cartridge’s location is empty (with an Initialize Element Status) or

the library moves the cleaning cartridge to a different storage

element.

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Quantum P2000 Guia do Utilizador Página 122