Tape Drives - Qualstar XLS Series Technical & Service Manual

2.2 Library Resource Module (LRM)
located on the tape drive calibration cartridge, which is stored in one of the five
reserved slots.
Fiducial
Figure 2-12 Cartridge magazine with two fiducials
During a fiducial scan, the handler moves up and down and across the cartridge
slots and I/O ports until the barcode reader detects the fiducials. It also inserts
the calibration cartridge into each tape drive. Once all the fiducials have been
detected, the library can calculate the exact position of every storage slot and
tape drive in a process known as calibration. Fidicual scans and calibration are
required only when the library is installed or when certain service procedures are
performed.
• Inventory scan. During an inventory scan, the barcode reader scans each slot to
determine which ones contain cartridges. It also scans the barcode labels on the
cartridges to establish and maintain its cartridge inventory. The system
controller stores the cartridge inventory in a database and makes it available to
the host applications.
Barcode labels must conform to the ANSI/AIM BCI-1995, Uniform Symbol
Specification (USS-39). Detailed specifications for XLS barcodes and labels can
be found in Qualstar Product Information Note 040, "XLS, RLS, and TLS
Barcode Labels." To obtain this document, go to
on the Support tab. Pre-printed barcode labels, which are both human- and
machine-readable, are available from a number of sources.
2.2.4

Tape Drives

The XLS-832700 can accommodate up to 32 tape drive assemblies in one to eight drive
bays, the XLS-820500 can accommodate up to 20 tape drive assemblies in one to five drive
bays, and the XLS-812300 can accommodate up to 12 tape drive assemblies in one to three
drive bays.
2-14
Fiducial
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501610 Rev. 07-01-19