NetApp AFF A200 System Documentation page 1617

A disk shelf has three location LEDs: one on the operator display panel and one on each IOM12 module.
Location LEDs remain illuminated for 30 minutes. You can turn them off by entering the same command,
but using the off option.
• If needed, you can refer to the Monitoring disk shelf LEDs section for information about the meaning and
location of disk shelf LEDs on the operator display panel and FRU components.
Steps
1. If you want to manually assign disk ownership for the replacement disk drive, you need to disable
automatic drive assignment if it is enabled; otherwise, go to the next step.
You need to manually assign disk ownership if disk drives in the stack are owned by both
controllers in an HA pair.
You manually assign disk ownership and then reenable automatic drive assignment later in
this procedure.
a. Verify if automatic drive assignment is
If you have an HA pair, you can enter the command at the console of either controller.
If automatic drive assignment is enabled, the output shows "on" (for each controller) in the "Auto
Assign" column.
b. If automatic drive assignment is enabled, you need to disable
-node node_name -autoassign off
You need to disable automatic drive assignment on both controllers in an HA pair.
2. Properly ground yourself.
3. Unpack the new disk drive, and set it on a level surface near the disk shelf.
Save all packaging materials for use when returning the failed disk drive.
NetApp requires that all returned disk drives be in a ESD-rated bag.
4. Physically identify the failed disk drive from the system console warning message and the illuminated
attention (amber) LED on the disk drive.
The activity (green) LED on a failed disk drive can be illuminated (solid), which indicates the
disk drive has power, but should not be blinking, which indicates I/O activity. A failed disk
drive has no I/O activity.
5. Press the release button on the disk drive face, and then pull the cam handle to its fully open position to
release the disk drive from the mid plane.
When you press the release button, the cam handle on the disk drive springs open partially.
Disk drives in a DS212C disk shelf are arranged horizontally with the release button located
on the left of the disk drive face. Disk drives in a DS224C disk shelf are arranged vertically
with the release button located at the top of the disk drive face.
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it:storage disk option modify