Replacing a disk

Reasons to replace a disk

You can replace a disk in your appliance or disk shelf for any reason. However, the most common reason is disk failure. If a disk fails, the appliance logs a warning message to the system console indicating which disk failed.

Supported disk drives

The FAS270/270c supports 72-GB and 144-GB block checksum disk drives.

About replacing a disk in your appliance

Replacing a disk in the FAS270/270c consists of the following procedures:

Removing a disk

To remove a disk, complete the following steps.

Step	Action
1	Enter one of the following commands, as appropriate. To remove a disk which is a Member of a volume, use `disk fail` disk_name. Spare disk, use `disk remove` disk_name. Either command causes the amber fault LED on the disk to illuminate. For more information about LEDs, see Monitoring the Fibre Channel disk. For more information about disk commands, see the Storage Management Guide.
2	Wait 30 seconds for the disk to stop spinning.
3	Put on the antistatic wrist strap and grounding leash.
4	To remove the disk, press down on its release mechanism with one hand while grasping the top flange of the appliance with the other hand. Gently slide the disk out of your appliance. WARNING When removing a disk, use two hands to support its weight. Caution If you have any empty disk drive bays, make sure to install the cover over the empty slot to ensure proper cooling.

Installing a disk

To install a disk, complete the following steps.

Step	Action
1	Put on the antistatic wrist strap and grounding leash.
2	Orient the device carrier so that the release mechanism is at the top. Note The disks on your appliance use special drive keys to prevent the use of nonqualified disks in your appliance. If the device carrier does not slide into the open guide slot, check to make sure that the disk drive is qualified for use in your appliance.
3	Insert the device carrier into the guide slot in the appliance and gently push it in until it stops. Lift the handle on the drive carrier to engage the drive with the backplane, and push it until you see the release mechanism click into place. Caution Do not slam the device carrier into place.
4	From the console screen, assign the disk to the CPU module receiving the disk by entering the following command: `disk assign` disk_name