HP STORAGEWORKS A7540-96010 User Manual download pdf (Page 42)

Troubleshooting

42 HP StorageWorks 2/8q Fibre Channel Switch Installation Guide

POST diagnostics

The switch performs a series of tests as part of its power-up procedure. The POST diagnostic

program performs checksum tests on the boot firmware in PROM and the switch firmware in

flash memory, internal data loopback tests on all ports, and access and integrity tests on the

ASIC.

During the POST, the switch logs any errors encountered. Some POST errors are critical,

others are not. The switch uses the Heartbeat LED and the Logged-In LED to indicate switch

and port status. A critical error disables the switch so that it does not operate. A non-critical

error allows the switch to operate, but disables the ports that have errors. Whether the problem

is critical or not, contact your HP Authorized Maintenance Provider.

If there are no errors, the Heartbeat LED blinks at a steady rate of once per second. If a critical

error occurs, the Heartbeat LED shows an error blink pattern and the System Fault LED will

illuminate. If there are non-critical errors, the switch disables the failed ports and flashes the

associated Logged-In LEDs.

Heartbeat LED blink patterns

The Heartbeat LED indicates the operational status of the switch. When the POST completes

with no errors, the Heartbeat LED blinks at a steady rate of once per second. When the switch

is in maintenance mode, the Heartbeat LED illuminates continuously. See “Maintenance mode

options” on page 47 for more information about maintenance mode. All other blink patterns

indicate critical errors.

The Heartbeat LED shows an error blink pattern for the following conditions:

Figure 14: Heartbeat LED location and blinking patterns

Blinking pattern Description

1 blink Normal operation

2 blinks Internal firmware failure

3 blinks System error

4 blinks Configuration file system error

5 blinks Over temperature

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 69 70

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HP STORAGEWORKS A7540-96010 User Manual Page 42