One Loop With Two Adapters In One Using System - IBM Advanced SerialRAID Adapters SA33-3285-02 User Manual

One Loop with Two Adapters in One Using System

In Figure 5, the loop contains two SSA adapters 1 and 2 that are both in the same
using system. In this configuration, all the disk drives can still communicate with the
using system if one SSA adapter fails.
Disk
Disk
Figure 5. One Loop with Two Adapters in One Using System
A1 A2 1 B1 B2
Disk Disk Disk
16 15 14 13
Disk Disk Disk
1 2 3
Using System
2
A1 A2
Disk Disk
12 11
Disk Disk
4 5 6
Chapter 2. Introducing SSA Loops
B1 B2
Disk Disk
10 9
Disk Disk
7 8
11