The following illustration shows the location of the LEDs on the front of a disk drive used in a
DS4243, DS4486, or DS4246 disk shelf.
1
2
1
Activity
2
Fault
What the disk drive LEDs mean for DS4243, DS2246, and DS4246 disk shelves
For DS4243, DS2246, and DS4246 disk shelves, you can determine the status of the disk drives by
understanding the meaning of the disk drive LEDs when they are illuminated.
The following table shows LED behavior when the disk shelf is not in H0 shelf mode. The
How
the H0 shelf mode and LEDs work section has information about H0 shelf mode.
Shelf digital display
Disk drive or carrier
LED color
Status indicator
Description
Action to take
Shelf ID
Green (activity)
Solid
The disk drive or
carrier has power.
None.
Blinking
The disk drive or
carrier has power and
I/O is in progress.
Amber (fault)
Solid
There is an error with
the function of the
disk drive or carrier.
See console error
messages.
Note: In some versions of Data ONTAP, when a disk drive fails due to excessive link errors,
adapter errors, or timeouts, the fault LED does not illuminate. This makes it difficult to
physically locate the disk drive that needs to be replaced.
NetApp Bugs Online Bug ID 767822
What the disk carrier LEDs and H1 shelf mode mean for DS4486 disk shelves
For DS4486 disk shelves, you can determine the status of a disk carrier by the color and behavior
of the illuminated LEDs. If a disk carrier has faulted, in addition to the LED behavior, you can
determine whether it is safe or unsafe to remove the disk carrier by the behavior of the H1 shelf
mode in the shelf digital display.
When a disk carrier is operating correctly, the disk carrier activity LED is green as the following
table shows:
DS4243, DS2246, DS4486, and DS4246 Installation and Service Guide
38
Monitoring disk shelf components
