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Chapter 1 Overview
SCSI Configuration
2 ATL M-Series User’s Guide
The cartridges are stored in up to eight independently removable
cartridge magazines and up to four fixed cartridge slots.
SCSI Configuration 1
The ATL M1500 and ATL M2500 library modules come configured
for LVD SCSI. One SCSI bus is provided for the library robotics
and for each tape drive installed. These SCSI buses are SCSI-2 fast/
wide (8/16 bit), Ultra SCSI, Ultra 2 SCSI, or Ultra 3 SCSI,
depending on the drives installed.
Library Scalability 1
The ATL M1500 and ATL M2500 library modules can be used as
stand-alone libraries, or can be combined with other ATL M1500
and ATL M2500 library modules and a StackLink mechanism in a
standard 19-inch rack to form a larger library system (called a
multiple library stack). The multiple library stack appears as a
single large capacity library to the host.
The StackLink mechanism connects the library modules in the
multiple library stack and transports cartridges from module to
module. Each tape drive has access to all the tape cartridges in the
stack.
Once the StackLink mechanism is installed in the rack, you can add
library modules simply by sliding them into place and making the
necessary electrical connections.
Table 1
lists the capacities of all the sizes of multiple library stack
you can create using ATL M1500 library modules. Table 2
lists the
capacities of all the sizes of multiple library stack you can create
using ATL M2500 library modules. You can obtain different
capacities by combining ATL M1500 and ATL M2500 library
modules in a multiple library stack.