1–13

EMU

PVA

Controller A

Controller B

Cache module A

 

Cache module B

 

 

 

CXO6283A

Figure 1–6. Location of Controllers and Cache Modules

IMPORTANT: Compaq recommends that you use the slots for controller A and cache module A for single controller configurations. Slot A responds to SCSI tar- get ID number 7 on the device buses and slot B responds to SCSI target ID num- ber 6 on the device buses.

Operator Control Panel

The operator control panel (OCP) contains a reset button and six port button LEDs as shown in Figure 1–7.The reset button flashes about once per second to indicate that the controller is operating normally. The port button LEDs correspond to the controller’s device ports and remain off during normal operation. If an error occurs, the reset button and LEDs will illuminate in a solid or flashing pattern to help you diagnose the problem.

Compaq HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide

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Compaq HSZ80 manual Operator Control Panel, Emu Pva