Hp 4000.6000.8000 Enterprise Virtual Arrays Manuale Utente Pagina 46

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0112a
Front
Rear
1
2
3
4
56 78 9
10
Figure 11 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. P ower supply 2
9. I/O module A
10. Status indicators (EMU, enclosure power,
enclosure fault)
I/O modules
Two I/O m
odules provide the interface b et ween the drive enclosure and the host controllers. See Figure
12.They
route data to and from the disk drives using Loop A and Loop B, the dual-loop conguration.
For redundancy, only dual-controller, dua l-loop o peration is supported. Each controller is connected to
both I/O modules in the drive enclosure.
46
Enterprise Virtual Array hardware components
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