Installation guide

Installing the SF7x Storage Enclosure in a DECarray Cabinet

6.6 Cabling the SF7x in a DECarray Cabinet

6.6.2 DSSI VAXcluster Conﬁguration

Use the following procedures for cabling an SF7x storage enclosure in an

existing DECarray cabinet conﬁgured for DSSI VAXcluster systems.

The following procedures assume that all devices installed previous to a new

installation of an SF7x storage enclosure are cabled in the DSSI VAXcluster

conﬁguration.

6.6.2.1 Identifying DSSI Connectors on the System I/O Panel

The following procedure explains how to locate and identify the DSSI

connections on the system I/O panel.

CAUTION

Before performing the following steps, refer to the system documenta-

tion for the correct procedure to perform an orderly shutdown of the

systems that the DECarray is connected to.

Note

This procedure assumes that no storage enclosures are installed

internally in the system cabinet. If there are storage enclosures

installed in the system cabinet, then one of the KFMSA modules

installed in the system XMI backplane must be connected to those

storage enclosures. Do NOT use this KFMSA module or its DSSI

connections to connect the system to the DECarray. Do NOT count this

KFMSA module in the following steps.

1. Open the system I/O panels on both systems by removing the screws that

secure the I/O panel to the system chassis. Let the panel swing down to its

rest position.

2. Find the ﬁrst KFMSA module installed in the XMI backplane of each

system. It is the KFMSA module in the lowest numbered slot of the XMI

backplane.

3. Follow the cabling from the backplane to the system I/O panel.

4. While viewing the front of the I/O panel, note that the DSSI connector

on the left is KFMSA DSSI bus 2 and the DSSI connector on the right is

KFMSA DSSI bus 1. These connectors should be labeled BLUE for bus 1

and RED for bus 2.

6–44 Installing the SF7x Storage Enclosure in a DECarray Cabinet