StorageTek L180, Service Manual

Page: 180 / 266

Library SCSI Cable
4-90 Fifth Edition 95897
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Library SCSI Cable
The cable is on the electronic compartment.
Note: If the library contains an MPW card and the library is the last device on
the LVD SCSI bus, then the library’s SCSI cable is likely not a Y cable but
a single cable. However, the removal and replacement of the single
cable is similar to the removal and replacement of the Y cable.
Use Figure 4-14 and the following procedure to replace the cable.
Preparation
Observe these precautions before beginning:
1. If the drives are daisy-chained with the library, stop all data processing on
the channel before disconnecting them.
2. Make sure there is no activity on the SCSI bus before disconnecting the
external SCSI cables; do not disconnect cables from an active (hot) bus.
3. Make sure any third-party software is quiesced.
4. Make sure all signals are terminated at each end of the SCSI bus. Also, do
not mix single-ended and differential terminators.
Figure 4-14. Library SCSI Y Cable (C67217)
C67217