Instruction Manual

CXO7882
A
Front
Rear
3 4
1 2
95 76 8
Figure 20 FC drive enclosure—front and rear views
1. Drive bay 1
2. Drive bay 14
3. EMU
4. I/O module B
5. Blower 1
6. Power supply 1
7. Blower 2
8. Power supply 2
9. I/O module A</ara>
FC-AL I
/O modules
Two I/O modules (see Figure 23 and Figure 24) provide the interfaces between the drive enclosure and the
controllers. They route data to and from the drives using Loop A and Loop B, the dual-loop conguration.
60
Storage system hardware components