Installation guide

Installing a DECarray with a VAX 4000 System

D.2 DSSI VAXcluster Installation of a DECarray

Note

A DSSI VAXcluster bus can only be connected from a VAX 4000 to a

single DECarray and then to another VAX 4000.

For a VAX 4000 Model 200, DSSI bus 0 connects to ports 1 and 9 on the

DECarray. The ﬁrst KFQSA adapter connects to port 2 and 10. The second

KFQSA adapter connects to port 3 and 11.

For a VAX 4000 Model 300, DSSI bus 0 and 1 connect to ports 1, 2 and 9, 10 on

the DECarray. The ﬁrst KFQSA adapter connects to port 3 and 11. The second

KFQSA adapter connects to port 4 and 12.

This section provides the procedures for installing the DECarray in a DSSI

VAXcluster conﬁguration correctly and safely. Digital Customer Services or

trained installing personnel must perform the procedures.

Ensure that all precautions for site preparation have been completed. Refer to

DECarray installation guide.

The following procedures describes how to:

• Inspect the array for proper conﬁguration (Section D.2.1)

• Cable the DECarray with an existing VAX 4000 Model 300 system in the

DSSI VAXcluster conﬁguration (Section D.2.2)

• Check the DECarray for correct operation (Section D.2.3)

D–18 Installing a DECarray with a VAX 4000 System