Spectra T200 - Configure Barcode Reporting

Chapter 4 — Configuring the Library Configuring Optional Library Settings
December 2019 User Guide—Spectra T200, T380, and T680 Libraries
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Configure Barcode Reporting
Overview The Spectra Logic tape libraries support barcode data strings
consisting of a start character; from 1 to 16 characters, including
alphanumeric characters and an optional checksum character; and the stop
character. Quiet zones precede and follow the start and stop characters.
By default, the library:
 Expects barcode labels with checksums (that is, it treats the right-most
character as a checksum character).
 Does not use the checksum character to validate the barcode.
 Reports up to 16 characters but does not report the checksum character.
Note: With the exception of the checksum, the barcode labels typically
show the human-readable character that each barcode character
represents. The checksum character is not considered
human-readable.
Modifying Barcode Reporting If your environment has any of the
following:
 Labels without a checksum character
 A requirement to validate the barcode using the checksum
 Storage management software with specific barcode requirements
then you may need to modify the default settings used by the library.
Important
 Proceed with caution when changing the library’s default barcode reporting
settings. Any changes that you make affect every partition in the library. Before
making changes, make sure that the changes do not adversely affect others
using the library.
 If you modify the barcode reporting settings, you should do so before using any
cartridges in the library. If you change the barcode reporting settings after the
cartridges were used by the storage management software, the software may
no longer recognize those cartridges. In general, it is best to leave the library set
to its defaults and make any reporting modifications on the software side if that
is an option.
 If you change the barcode options, the library will report a tape mismatch error
when tape cartridges previously discovered by MLM are loaded into a drive.
 Never mix cartridges with checksummed and non-checksummed labels in the
library.