6.2 Operation Failures
The problems in this section occur during normal operation.
6.2.1 During operation, a key on the key pad works intermittently, or
completely fails to operate.
Possible cause:
A switch on the Control Panel PCBA has failed. It is possible to pry the cap off the
switch and clean the contacts. If you try this, pry the cap off using a thin knife blade
and be careful not to lose the “X” shaped contact spring inside. Clean the contact
spring and the two contacts inside the switch by wiping with a plastic safe contact
cleaner or with alcohol. If this fails, replace the entire front panel FRU.
6.2.2 The library tries to insert a tape into a tape drive that is already
occupied.
When the library attempts to put a tape into an occupied drive, it is not a failure. For
example, if the library takes an inventory after a tape is inserted into a drive, then
the library does not know if a tape is in the drive. If commanded to do so, the library
will attempt to put a tape into the occupied drive. After it fails to insert the tape into
the occupied drive, the library will put the tape back where it came from, and update
the inventory information to show that the drive is occupied.
6.2.3 The Barcode Reader does not read any bar code labels.
The library uses the Code 3 of 9 (also know as code 39) barcode format for the car-
tridge labels. In the default configuration, a check character is expected. This can be
altered in the configuration. If the library is configured for a check character, and
none is present on the labels, then the library will be unable to read the labels. If the
library is configured for no check character, and there are check characters on the la-
bel, the library will interpret the check character as an additional character, and you
will see one extra character in the element label reported on the SCSI bus or in the
menus.
Possible causes:
1.
The barcode labels are printed in a code that the library configuration does not
understand.
2.
The configuration is set to the wrong type of barcode reader.
3.
The
Configuration\Advanced\Changer\LabelCheckChar
(label check
character) option is not set correctly.
4.
The lens on the face of the bar code reader is not clean.
5.
The barcode labels are not of a high enough quality for reliable reading.
6-10 Troubleshooting
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