I/O Modules; Disk Drive Bay Numbering; Disk Enclosure (Front View Without Bezel Ears); Disk Enclosure (Rear View) - HP StorageWorks 4400 User Manual

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Figure 2 Disk drive bay numbering
1. Rack-mounting thumbscrew
2. UID push button
3. Disk drive release
Figure 3 Disk enclosure (front view without bezel ears)
1. Power supply 1
2. Power supply 1 status LED
3. Fan 1
4. Enclosure product number and serial
number
Figure 4 Disk enclosure (rear view)

I/O modules

Two I/O modules provide the interface between the disk enclosure and the host controllers, see
5. For redundancy, only dual-controller, dual-loop operation is supported. Each controller is connected
to both I/O modules in the disk enclosure.
4 7
5 8
6 9
5. Fan 1 status LED
6. I/O module A
7. I/O module B
8. Rear UID push button
HP StorageWorks 4400 Enterprise Virtual Array user guide
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4. Enclosure status LEDs
5. Drive LEDs
9. Enclosure status LEDs
10. Fan 2
11. Power push button
12. Power supply 2
Figure
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