I/O Modules; I/O Module Status Indicators - HP 6400/8400 User Manual

Figure 3 Disk enclosure rear view
1. Power supply 1
3. Fan 1
5. Fan 1 status LED
7. I/O module B
9. Enclosure status LEDs
1 1. Power push button

I/O modules

Two I/O modules provide the interface between the disk enclosure and the host controllers,
(Figure 4 (page
controller is connected to both I/O modules in the disk enclosure.
Each I/O module has two ports that can transmit and receive data for bidirectional operation.
Activating a port requires connecting a Fibre Channel cable to the port. The port function depends
upon the loop.
Figure 4 I/O module detail
1. Double 7–segment display: enclosure ID
3. Port 1 (P1), Port 2 (P2) status LEDs
5. I/O module status LEDs

I/O module status indicators

There are five status indicators on the I/O module. See
states for an operational I/O module are shown in
the status indicator states for a non-operational I/O module.
10 EVA6400/8400 hardware
10)). For redundancy, only dual-controller, dual-loop operation is supported. Each
2. Power supply 1 status LED
4. Enclosure product number and serial number
6. I/O module A
8. Rear UID push button
10. Fan 2
12. Power supply 2
2. 4 Gb I/O ports
4. Manufacturing diagnostic port
Figure 4 (page 10). The status indicator
Table 1 (page 11). Table 2 (page 11) shows