LED Description Denition
1 Identify Blue— Disk drive module is being identied.
2 Fault Off— The disk drive module is operating normally.
Amber— A fault has been detected or a service action is
required.
The replacement procedure should be completed within an absolute maximum of 3 minutes. For
additional information about SFF disk LED behavior, see “Disk drive carrier module LEDs” on page 57.
Controller channel fan module
The controller channel fan module supplements the system fans by circulating airflow within the
enclosure controller channel, and providing additional cooling for the IOMs/EBOD expander modules. The
replacement procedure should be completed within an absolute maximum of 3 minutes.
Figure 20. Top view of channel fan module
Chapter 3. System Overview
23