Installation guide

D.1 Single-System Installation of an DECarray
• If the array has two TF857 magazine tape ISEs in positions 5 and
6, then install a terminator (12–31281–01) in the bottom DSSI
connector of both TF857 magazine tape ISEs.
• If the array has an SF7x storage enclosure in position 1 only, then
install a terminator (12–31281–01) in the leftmost DSSI connector
of position 1.
• If the array has an SF7x storage enclosure in position 1 and 2, then
install a terminator (12–31281–01) in the leftmost DSSI connectors
of position 1 and 2.
• If the array has an SF7x storage enclosure in position 1, 2, 3, 4, and
7, then install a terminator (12–31281–01) in the leftmost DSSI
connectors of positions 4 and 7.
• If the array has an SF7x storage enclosure in position 1, 2, 3, 4,
7, and 8, then install a terminator (12–31281–01) in the leftmost
DSSI connectors of position 4 and 7.
3. Connect the ground strap (provided with the cable kit). Attach one end
of the strap according to the instructions found in the System Expansion
Installation Supplement (part number EK-431AB-IN). Connect the other
end to one of the screws securing the power controller to the storage array.
4. All other configurations, with or without TF857 magazine tape ISEs, do not
need terminators.
D.1.2.1 Example of a Fully Configured Single-System System
The following section shows a fully configured single-system consisting of a
DECarray with 18 disk ISEs and two TF857 magazine tape ISEs connected to
a VAX 4000 systems.
REMEMBER that 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 (TF857).
Use Table D–2 for configuring DSSI bus 0.
D–8 Installing a DECarray with VAX 4000 Systems