HP StorageWorks 2500 Disk System Enclosure User Manual download pdf (Page 50)

LEDs on the rear of the enclosure indicate the status of the EMU, I/O modules, and power supply/blower

assemblies. Operational states of the LEDs are shown in Figure 26.

CXO7959A

Figure 26 LEDs in the operational state

Audible error indicators

If enabled, the audible alarm sounds when the EMU detects an error. The sound pattern identifies the

error sever

ity. Table 9 shows the duration of the different alarms. See "Audible alarm" on page 41

for instru

ctions to control the alarm.

Table 9 Audible alarm sound patterns

Error sever

ity

Cycle 1 Cycle 2

Unrecoverable

Critical

Noncritical

Informati

Legend

Alarm on

Alarm off

Visual error indicators

I/O module and transceivers

LEDs on the I/O module report the status of transceiver signals and I/O module power. Use Figure 27

and Table 10 to interpret the I/O module errors and determine what action to take.

Troubleshooting

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HP StorageWorks 2500 Disk System Enclosure User Manual Page 50