HP StorageWorks 1500 Modular Smart Array maintenance and service guide (356606-002, October 2006)

Verifying component failure

Before replacing the controller, cache module, or battery pack:

• Check the contr

oller LCD display panel for error messages.

• Record any failure LEDs or LCD panel messages for reference purposes.

• Check the controller heartbeat LED (1).IftheLEDisnotblinking,itmightindicateafailure.

• Check the cont

roller fault LED (2) . If the LED is on, it might indicate a failure.

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Removing the controller

1. Review all warnings, cautions, and preparation procedures as detailed in Warnings and precautions.

2. Review all controller-speciﬁc warnings, cautions, and preparation procedures as detailed in Before

you begin.

3. In all single-controller conﬁgurations, power off the MSA as instructed in Removing power from

the MSA.

4. In operational dual-controller conﬁgurations, access an MSA management utility, such as the

MSA Command Line Interface (MSA-CLI) or the Array Conﬁguration Utility (ACU) and disable the

controller being removed. For instructions, see online help. (During this procedure, because one of

the two controllers is being removed, the MSA operates in a non-redundant mode.)

5. Press the controller thumb latch and rotate the latch handle out (1).

6. Pull the controller straight out of the chassis (2).

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maintenance and service guide