Installation guide

Installing a DECarray with a VAX 4000 System
D.2 DSSI VAXcluster Installation of a DECarray
D.2.2.1 Example of a Fully Configured DSSI VAXcluster System
The following section shows a fully configured DSSI VAXcluster system
consisting of a DECarray with 16 disk ISEs and two TF857 magazine tape
ISEs connected to two VAX 4000 (each with one RF disk ISE).
DSSI Bus 0 from the VAX 4000 Model 300 can have tape and disk ISEs on it
that are internally mounted in the system enclosure. Also DSSI Bus 0 and 1
(the embedded DSSI buses) are the Only two DSSI buses from the system that
can support the DSSI tape ISEs.
Figure D–10 shows the fully configured DECarray. Figure D–11 shows each of
the 4 buses in Figure D–10.
Use Table D–4 for configuring DSSI bus 0 on either system to DSSI bus 1 of
the other DSSI VAXcluster system.
Table D–4 DSSI Bus 0 to DSSI Bus 1 Configurations
System Internal ISEs
DSSI Bus 0 DECarray
Tape ISE Disk ISE Tape ISE Disk ISE
0 0 0 or 1 up to 4
0 1 0 or 1 up to 4
020upto4
0 3 0 or 1 up to 2
0 4 0 or 1 none
100upto4
110upto4
120upto2
130upto2
Installing a DECarray with a VAX 4000 System D–23