Chapter 4 — Configuring the Library Configuring Optional Library Settings
December 2019 User Guide—Spectra T200, T380, and T680 Libraries
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Barcode Reporting Mismatch Errors Unexpected behavior can occur if the
library’s barcode reporting configuration does not match the type of
barcode labels that are being used and what the storage management
software expects. The most common problems that occur are:
The library is configured to expect a checksum character in barcodes,
but the barcode labels do not have a checksum character. In this case,
the barcode reported by the library is “missing” the right-most
character. This is because the library treats the last character in the
barcode as a checksum character, which it does not report, when the
character is actually part of the barcode.
The library is configured to use barcode labels that do not include a
checksum, but the barcode labels include a checksum character. In this
case, the library treats the checksum character as part of the barcode
and therefore reports a seemingly random “garbage” character as the
last character of the barcode.
The library is configured to use barcodes that include a checksum and
perform checksum verification, but the barcode labels do not have a
checksum character. In this case, the library reports a verification error
on every barcode label because the character it is using to perform the
checksum verification is not a checksum character.
User Privilege Requirements Only a user with superuser or administrator
privileges can modify barcode reporting. See Configuring Library Users on
page 96 for information about the three types of user groups and what
types of privileges each has.
Changing the Library’s Default Barcode Reporting
Configuration
Note: If you are unsure whether your labels include a checksum
character, see Determining the Barcode Label Type on page 135.
If necessary, use the following steps to change the library’s default barcode
reporting configuration to disable the use of checksum characters, enable or
disable the verification of the checksum character, or modify what portion of
the actual barcode is reported to the host.
1. Log into the library as a user with superuser or administrator privileges.
2. From the toolbar menu, select Maintenance > Tools. The Maintenance
Tools screen displays.
3. Select Utilities. The Utilities screen displays.
4. Click Show Advanced. The Advanced Utilities Confirmation screen
displays.
After the utility completes, the LCM reboots. After the library completes its
initialization, it rescans the barcode labels of all media in the library. This rescan
takes approximately 18 seconds per cartridge.
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