HP StorageWorks 3000 RAID Array - Manual (Page 76)

3-14 RAID Array 3000 Controller Shelf Hardware User’s Guide
Compaq Confidential – Need to Know Required
Writer: Bob Young Project: RAID Array 3000 Controller Shelf Hardware User’s Guide Comments:
Part Number: EK-SMCPQ-UG. D01 File Name: d-ch3 Installation and Maintenance.doc Last Saved On: 12/4/00 1:08 PM
NOTE: All four cabling procedures describe how to connect your subsystem to a single
host via the host I/O module 0 connector on the controller shelf. The procedures are the
same for host I/O module 1. Also, no connections are shown to the Host Out connector on
the I/O module. This connector is electrically the same as Host In and is used for mid-bus
connections in a multiple-host configuration.
SCSI Bus Target Addresses and Termination
NOTE: The SCSI bus address switches on the controller shelf device I/O module has been
disabled. It does affect or control the SCSI bus addresses of the devices in the device
expansion shelves. The target addresses of the disk drives are set by address switch S3
on the personality module in each device expansion shelf.
The SCSI bus device address and termination switches should be set before
connecting the SCSI cables between the controller and device expansion
shelves. The SCSI bus addresses of the devices in each device expansion shelf
is set by address switch S3 on the side of the personality I/O module in each
shelf.
The SCSI bus termination on each device bus is set by the SCSI bus
termination switch S4 on the device I/O module of the controller shelf and the
personality I/O module on each device expansion shelf.
The correct SCSI bus ID addresses and termination switch settings for single
and multiple device expansion shelf installations are shown on the diagrams
that support the following four cabling procedures.