Installation guide

Largest Configurations with One 7133
All 16 disk drive modules in a full 7133 can be connected in one loop. For a balanced
subsystem, however, it is recommended that two groups of eight disk drive modules be
connected in two separate loops, each of which is connected to a separate pair of
connectors on the SSA attachment (see Figure 17).
No improvement in performance is gained if the disk drive modules are connected in
more than two loops by way of an additional SSA attachment.
The cables are described in “SSA Cables” on page 38. The internal connections of
Model T40 are shown in Note 4b on page 10.
For information about the rules for SSA loops, see Note 4a on page 9.
1
2 2 2 2
7133 unit
4
8
1
12
4321
Using system
A1 A2 B1 B2
5678
9 101112 13141516
13
5
9
16
Figure 17. Largest Configuration with One 7133
30 7133 Model T40 Installation Guide