8.9 Preparing the TL895 DLT Automated Tape Library for
Shared SCSI Bus Usage
The topics in this section provide information on preparing the TL895 Digital
Linear Tape (DLT) automated tape library for use on a shared SCSI bus.
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Note
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To achieve system performance capabilities, we recommend
placing no more than two TZ89 drives on a SCSI bus segment. We
also recommend that storage be placed on shared SCSI buses that
do not have tape drives. This makes it easier to stop ASE services
affecting the SCSI bus that the tape loaders are on.
The DS-TL895-BA automated digital linear tape library consists of five
TZ89N-AV tape drives and 100 tape cartridge bins (96 storage bins in a
fixed-storage array (FSA) and 4 load port bins). The storage bins hold either
CompacTape III, CompacTape IIIXT, or CompacTape IV cartridges. The
maximum storage capacity of the library is 3500 GB uncompressed, based
upon 100 CompacTape IV cartridges at 35 GB each. For more information on
the TL895, see the following manuals:
•
TL895 DLT Tape Library Facilities Planning and Installation Guide
(EK-TL895-IG)
•
TL895 DLT Library Operator’s Guide (EK-TL895-OG)
•
TL895 DLT Tape Library Diagnostic Software User’s Manual
(EK-TL895-UM)
For more information on upgrading from five to six or seven tape drives, see
the TL895 Drive Upgrade Instructions manual.
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Note
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There are rotary switches on the library printed circuit board
used to set the library and tape drive SCSI IDs. The SCSI IDs
set by these switches are used for the first 20 to 30 seconds after
power is applied, until the electronics is activated and able to
set the SCSI IDs electronically.
The physical SCSI IDs should match the SCSI IDs set by the
library electronics. Ensure that the SCSI ID set by the rotary
switch and from the control panel do not conflict with any SCSI
bus controller SCSI ID.
The following sections describe how to prepare the TL895 for use on a shared
SCSI bus in more detail.
8–36 Configuring a Shared SCSI Bus for Tape Drive Use
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