Installation Guide

26 Troubleshooting and Diagnostics
Warning Signals
The drive used in the AIT-70D/100D employs three LEDs on the front panel to indicate SCSI activity,
cassette status, and drive fault conditions through a pattern of codes. The LCD also displays error messages
as described in the following section.
LCD Error Messages
Whenever an error occurs, perform the actions listed in the following table. If the error message reappears,
call the ATAC or you reseller for assistance.
LCD Error Message Actions to Take
aa = error status 0, reported by drive
bb = error status 1, reported by drive
cc = error status 2, reported by drive
Data Cartridge Problem:
• Clean the Drive Head using new cleaning
cartridge.
• Use new data cartridge and retry operation.
• Power-cycle the AIT-70D/100D and retry
operation.
aa = error status 0, reported by drive
bb = error status 1, reported by drive
cc = error status 2, reported by drive
Hardware Problem:
• Use new data cartridge and retry operation.
Power-cycle the AIT-70D/100D and retry
operation.
Drive LED Status
The drive in the AIT-70D/100D employs its front panel LEDs to indicate SCSI activity, drive fault
conditions, and cassette status. Refer to the following tables and figures for locations of the LEDs and
descriptions of the status and error codes displayed by the drive.
Media Warning Message
If an excessive number of read-after-write errors are detected during normal operation of the AIT-70D/100D,
a Media Warning message will be displayed by the Tape LED.
Usually, the Media Warning message is displayed by the drive because of dirty heads, so the heads should be
cleaned (see Cleaning the Tape Head in Chapter 4 of this manual) and the operation tried again.
If the Media Warning message reappears, repeat the operation with a different (preferably new) tape. If this
clears the Media Warning message, the first tape is nearing the end of its life. Copy all the data on that
cassette to a new cassette and discard the old one.
If it does not clear the Media Warning message, and you are unsure of the problem source, call the ATAC
(for more information see When You Need Assistance later in this chapter).