HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 Service Manual (A5 - Page 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. Attaching SCSI Cables and Configuring the Disk Enclosure Switches 153