Chapter 4: Server troubleshooting
32
Table 4: Drive status LED
LED
Pattern
Drive Status Description
Flashes green two times per second
Identifying the drive or preparing the drive
for removal.
Off
Drive ready for removal, or all drives are
initializing. The drive status LED remains
off while the drives are initializing after the
system is turned on. Do not remove a drive
during this time.
Flashes green, amber, and off
Predicted drive failure.
Flashes amber four times per second
Drive failed.
Flashes green every 2 seconds
Drive is rebuilding.
Steady green
Drive is online.
Flashes green three seconds, amber three
seconds, and off six seconds
Rebuild aborted.
Table 5: Drive activity LEDs
LED
Pattern
Drive Activity Description
Off
Not lit—No disk activity.
Flashing or steady green
Read/Write (I/O) activity is occurring.
About front drive numbering
The front drives are numbered for identification purposes.
Figure 18: CN-2000 drive numbering
The drives are numbered from 0 to 11, top to bottom, and left to right. Drives 0 to 3 are SSDs and
drives 4 to 11 are HDDs.