If two or more disk drives are turned off, fail, or are removed from the loop, some disk
drives might become isolated from the SSA adapter
In Figure 4 on page 34, disk drives 3 and 7 have been removed. Disk drives 1 and 2
can communicate with the system only through connector A1 of the SSA adapter. Disk
drive number 8 can communicate with the system only through connector A2 of the
SSA adapter. Disk drives 4, 5, and 6 are isolated from the SSA adapter.
U s in g s y s te m
D is k
1
D is k
2
D is k
3
D is k
4
D is k
5
D is k
6
D is k
7
D is k
8
A1 A2
B1 B2
Figure 3. SSA Loop with failed disk
Appendix A. Connecting SSA Devices to the Adapter
33
Summary of Contents for Advanced SerialRAID/X
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