HP SureStore E Disk Array FC60 Service Manual (A5635A)

Attaching SCSI Cables and Configuring the Disk Enclosure Switches 153
Installation
Attaching SCSI Cables and
Configuring the Disk Enclosure Switches
NOTE!
It is critical that all SCSI cables be tightened securely. Use the
following steps to ensure the cable connectors are seated properly.
1. Connect the cable to the enclosure connector and tighten the
mounting screws finger tight.
2. Push on the connector and retighten the mounting screws. Repeat
once more.
3. Use a flat blade screwdriver to tighten the screw 1/4 turn. Do not
overtighten or you may strip the mounting screw.
There are two types of cabling configurations for the array: full-bus and split-bus. The
configuration you select is determined by a number of factors which are described in
Chapter 2, Topology and Array Planning.
When you have determined which configuration you will use, refer to "Full-Bus Cabling and
Switch Configuration" on page 154” or "Split-Bus Switch and Cabling Configurations" on
page 157”
.
A Word About SCSi Terminators
Terminators need to be installed on both the disk enclosures and the controller enclosure.
On the controller enclosure, any unused SCSI connector must be terminated. On the disk
enclosure, not every connector requires termination. If a SCSI cable is connected to a BCC
connector, the other connector on the BCC must be terminated. If there is no SCSI cable
connected to the BCC, no terminator is required on either connector. A BCC that is
operating in split-bus mode will have a cable connected to each BCC. In this case, the
unused connector on each BCC must be terminated. See Figure 60 or Figure 62.