Bull DPX/20, Installing And Maintaining

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2–2
Installing and Maintaining a DAS 150
SP’s SCSI-2 bus connectors
Back view
SCSI
bus out
SCSI
bus in
The SCSI-2 bus in and out connectors are on the SP’s bezel, which is accessible from
the back of the storage system.
Connecting the SCSI-bus cable for the storage system
1. Shut down the operating system on the server.
2. Power down the server.
3. Locate the SCSI-bus cable, and plug one end into the connector for the SCSI-2
adapter on the server (or the connector on the converter) and plug the other end
into the SCSI bus in connector (
) on the back of the storage system.
Refer to the server (or converter) and SCSI-2 adapter installation manuals for the
location of the SCSI-2 adapter connector and for the proper procedures for
connecting and securing the cable.
4.
Follow the procedure below for the type of configuration you are installing.
Basic configuration — Make sure the SCSI terminator plug is fastened securely
to the SCSI bus out connector ( ) on the back of the storage system. The storage
system is shipped with the SCSI terminator plug installed on the SCSI bus out
connector.
Dual-initiator configuration — Plug one end of the second SCSI-bus cable into
the connector for the SCSI-2 adapter on the second server (or the connector on
the converter) and plug the other end into the SCSI bus out connector (
) on the
back of the storage system.