Diagnostic and Maintenance Functions
The drive can:
v Run diagnostics
v Test write and read functions
v Test a suspect tape cartridge
v Update firmware
v Perform other diagnostic and maintenance functions
The drive must be in maintenance mode to perform these functions.
Attention: Maintenance functions cannot be performed concurrently with read or
write operations. While in maintenance mode, the tape drive does not accept SCSI
commands from the server.
Note: During normal operation the fan only runs when cooling is required. The
fan will be turned on/off during the POST and Run Drive Diagnostics to
demonstrate the fan is operational.
Entering Maintenance Mode
The drive must be in maintenance mode to run drive diagnostics or maintenance
functions. To place the unit in maintenance mode:
1. Make sure that no cartridge is in the drive.
2. Press and hold the Unload Button for 6 seconds. A 0 appears in the
Single-character Display (SCD), and the Fault LED turns amber.
Note: If a cartridge is in the tape drive, it will eject the first time that you press
the Unload Button and the drive will not be placed in maintenance mode.
To continue placing the drive in maintenance mode, perform the preceding
step. While in Maintenance Mode, the drive will not accept a cartridge
unless the drive requests it. The SCD will display a flashing C to indicate a
cartridge needs to be inserted.
Maintenance functions cannot be performed concurrently with read or write
operations. While in maintenance mode, the drive does not receive commands
from the server.
Exiting Maintenance Mode
The drive must be in maintenance mode to run drive diagnostics or maintenance
functions. To exit maintenance mode:
1. Press and hold the Unload Button for 3 or more seconds then release the button
to take the drive out of maintenance mode. If no error is detected, 0
temporarily appears in the SCD, then goes blank. The drive then exits
maintenance mode and the Status LED will return to Green.
2. If an error is detected, the SCD shows an error code but still exits maintenance
mode. To determine the error, locate the code in “Error Codes and Messages”
on page 81. To clear the error, turn the power off, then on again.
Note: The drive also exits maintenance mode automatically after it completes a
maintenance function or after 10 minutes if no action has occurred.
72 7226 Storage Device Enclosure Setup, Operator and Service Guide
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