HP D2000 Disk Enclosures - Manual (Page 13)

Fan module
Fan modules provide cooling necessary to maintain proper operating temperature within the controller
enclosure. If one fan fails, the remaining fan is capable of cooling the enclosure. (Replace any failed
component as soon as possible.)
NOTE:
If one of the two fan modules fail, it can be hot-replaced.
Fan module LED
One bi-color LED provides module status information.
Description LED status LED color
No power Off Off
The module is being identified Blinking
Green
Normal, no fault conditions Solid
Fault conditions detected Blinking
Amber
Problems detecting the module Solid
D2600/D2700 Disk Enclosure User Guide 13