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Appendix A Specifications
Performance Specifications
LTO Ultrium 8-Slot Autoloader User’s Guide 49
SCSI Terminator
Requirements
1
If the autoloader or the tape drive is the last device on the SCSI bus, you
must install an external, wide LVD terminator on the unused SCSI
connector. Do not use internal terminators to terminate the autoloader or
the tape drive. The manufacturer recommends using a SCSI-3 type SE/
LVD multi-mode terminator.
Performance Specifications
1
Capacity
1
The autoloader can accommodate up to eight LTO tape cartridges. The
storage capacity of the autoloader depends on the type of cartridge and
the type of data being stored.
Tape Drive
Performance
1
When installed in the autoloader, the tape drive performs within its
specifications. A minimum of an Ultra2 LVD-capable controller that can
transfer data at least 160 MB/second is required. For more information
about tape drive performance specifications, refer to the documentation
for the tape drive.
Autoloader Self-
Test Times
1
Each time the autoloader is powered on, it performs a power-on self-test
(POST). POST includes a self-test of the control electronics, initialization
of the mechanical components, and a cartridge inventory. The POST time
is measured from the time the autoloader is powered on until the
autoloader indicates Ready status. The maximum time required for POST
is 65 seconds.
The autoloader also performs a self-test when you select
Library Test
from
the Operator’s Panel or in response to a
SEND DIAGNOSTICS SCSI
command. The maximum time required for this self-test is nine seconds.
Note:
The manufacturer recommends using active termination. The
manufacturer’s testing has shown that older passive
termination does not provide rising edge transitions that are
fast or clean enough at fast SCSI speeds.