About drive monitoring
45
Figure 14: Disk drive LEDs
Each hard drive carrier has two LEDs that indicate the state of the physical disk. The green activity LED
(callout 1) flashes whenever the drive is accessed. The bicolor (green/amber) LED (callout 2) provides
drive status information as detailed below.
Table 7: 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.