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General Information
This chapter describes the hardware components of the A4845A Library Storage
Module (LSM). For LSM management software information and drive
information, refer to the publications that pertain to these specific topics.
The LSM is the hardware component in an automated cartridge system. An
automated cartridge system is a removable media, robotic system that mounts
cartridges into a storage cell or into a drive for read/write operations.
and
Figure 1-2
following pages.
Library Storage Module Components
The LSM has four major, internal components:
• A robot
• Storage cells for 224 to 588 cartridges
• A cartridge access port (CAP) that holds up to 14 cartridges
• Drives
Robot
The robot moves cartridges between storage cells and drives when the LSM
management software makes a request to move cartridges. The robot consists
mainly of the Z column assembly and the hand.
components.
The Z column assembly contains a Z column and Z carriage. The Z column
attaches to the floor and ceiling of the LSM. The Z column rotates almost 360
degrees to allow access to all the cells in the LSM.
The hand mounts to the Z carriage. The Z carriage moves the hand vertically up
and down the Z column to storage cells, drives, or the CAP.
A camera located on the hand reads the cartridge volume serial numbers
(VOLSERs) during audits, but is not used to locate cartridges during robotic
moves. The camera does not read the VOLSERs of cartridges in the drives. If
you manually replace a cartridge in a drive, the host memory will retain the
previous VOLSER. You must request a host update using the LSM management
software to add the information to the host memory.
show the major components of an LSM, described in the
Figure 1-1
Figure 1-2
shows the robot
1
1-1
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