Sun Microsystems 820-4733-10 service manual Removing Fabric Cards, Removing a Fabric Card

The disableboard command completely powers down (disable) a fabric card so that it can be removed from the chassis. For example, to disable fabric card 14:

#disableboard fc 14

6.5Removing Fabric Cards

This procedure describes how to remove one fabric card as part of a replacement operation.

▼Removing a Fabric Card

Caution – Before beginning this procedure, have a fabric card filler panel or replacement fabric card prepared and standing by for immediate installation. A quick exchange is necessary to maintain chassis thermal management.

Caution – If you are going to immediately replace a defective fabric card with a new one, inspect and prepare the new fabric card, performing Step 1 through Step 6 in “Installing a Fabric Card” on page 6-8before starting this procedure.

Removing the fabric card is a two-person task, as both people must work in a synchronized manner. To prevent damage to the fabric card or the pins of the midplane connector, the two installers perform identical tasks simultaneously.

1.Extend the antitilt bar from the bottom of the switch chassis.

2.Power off the fabric card, using the deactivate and disableboard commands.

3.Using a 17 mm socket and ratchet, turn each retainer drive screw counter-clockwise until no resistance is felt.

4.Slowly rotate each retainer drive screw counter-clockwise, until resistance is felt, then stop.

5.Simultaneously rotate the retainer drive screws clockwise, stopping at each half turn, to maintain synchronization.

6.Continue synchronized rotation until greater resistance is felt, then stop.

Chapter 6 Fabric Card Service Procedures 6-7