Technical data

Verifying component failure

Before replacing the power button module:

• Verify that the

module status LED is not illuminated or is ﬂashing amber.

• Check the array controller LCD display panel for error messages and take appropriate action.

Removing the component

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

2. Stop all access to and remove power from the MSA. For instructions, see Removing power from

the MSA.

NOTE:

Before disconnecting any cables, label them so that they can be reconnected to the same connectors

when the power switch assembly replacement is complete.

3. Disconnect the power cables from the MSA.

4. Disconnect the Fibre Channel cables from the MSA.

5. Disconnect the SCSI cables from the MSA.

6. Remove the hard drives in slots 10 through 14, making sure to carefully label each hard drive

as it is removed.

CAUTION:

Topreventdataloss,eachharddrivemustbeinstalledinthesameslotfromwhichit

was removed.

7. Remove the MSA from the rack.

8. Remove module:

a. Using a ﬂ

at-head screwdriver, press the module’s plastic latch behind the front bezel down (1)

while pu

lling the front module lightly with your other hand.

b. When th

e top plastic clip has cleared the sheet metal lip of the shelf, move the ﬂat-head

screwdriver to the lower plastic clip and press up (1).

c. Pullthemoduleoutofthechasiss(2).

15571

Customer replaceable components