• The volume identifier “CLNvnn” is reserved for cleaning cartridges. When a
drive requires cleaning, it requests a specific type of cleaning cartridge.
• The “v” field is an alphanumeric field to identify cleaning cartridge
applications, “U” for Universal Cleaning Cartridges or a drive unique
identifier.
• The “nn” alphanumeric field is used to track individual cleaning cartridge
activity (that is, usage and life).
• The volume identifier “DG{space}vnn” is reserved for diagnostic and service
cartridges.
• The last two (2) characters are the media identifier and indicate the cartridge
Media Type (for example, “L” for LTO and “6” for an LTO-6 cartridge. In IBM
LTO tape drives, the value of the media identifier on cleaning cartridges is
ignored, although a valid value must be present.
• The barcode string can be printed in either direction on the label and must begin
and end with a valid start/stop character (
*
).
• The label must be printed so that barcode data is positioned along the edge of the
label that is closest to the hub side of the cartridge.
The AIM Uniform Symbol USS-39 specification provides detailed information about the
format of the start character, the series of characters that make up the barcode data, the
optional checksum character, and the stop character.
Detailed Specifications for LTO Cartridge Barcodes
Figure142 shows the dimensional specifications for LTO labels with the alphanumeric
characters above the barcode.
Figure142 Barcode specifications for LTO media; alphanumeric characters on top.
Note: When using barcode labels with alphanumeric characters along the bottom edge,
the label must be positioned so that barcode is at least 13.72mm below the top
edge of the cartridge to ensure that the barcode reader can read the label.
JANUARY 2023 274
SPECTRA STACK LIBRARY
USER GUIDE
APPENDIX A - SPECIFICATIONS
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