HP STORAGEWORKS A7540-96010 User Manual download pdf (Page 16)

Introduction

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

Maintenance button

The Maintenance button is a dual-function momentary switch on the front panel. (Figure 1)

Its purpose is to reset the switch or place the switch in maintenance mode. See “Maintenance

mode options” on page 47 for more information.

Resetting the switch

Use a pointed tool, such as an opened paper clip, to momentarily press and release (less than 2

seconds) the Maintenance button.

The switch responds as follows:

■ All chassis LEDs illuminate, and then the System Fault LED extinguishes, leaving only

the Input Power LED and Heartbeat LED illuminated.

■ After approximately 1 minute, the power-on self test (POST) begins, extinguishing the

Heartbeat LED.

■ When the POST is complete, the Input Power LED is illuminated and the Heartbeat LED

flashes once per second.

Placing the switch in maintenance mode

1. Isolate the switch from the fabric.

2. Press and hold the Maintenance button with a pointed tool until the Heartbeat LED alone

is illuminated (between 2–7 seconds).

3. After approximately 1 minute, the POST begins illuminating all chassis LEDs.

4. When the POST is complete, the chassis LEDs extinguish, leaving only the Heartbeat

LED illuminated. The Heartbeat LED illuminates continuously while the switch is in

maintenance mode.

Exiting maintenance mode

To exit maintenance mode and return to normal operation, momentarily press and release the

Maintenance button to reset the switch.

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HP STORAGEWORKS A7540-96010 User Manual Page 16