The LEDs on the drive carrier indicate the state of each drive. Each drive carrier has two LEDs: an activity LED (green) and a status LED (bicolor, green, and amber). The activity LED blinks whenever the drive is accessed.
Figure 1. Drive indicators
Drive activity LED indicator
Drive status LED indicator
Drive capacity label
If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not power on. Storage Spaces Direct manages the drive status indicator behavior. Not all drive status indicators may be used.
The following table describes the drive indicator codes.
NOTE:After the system is powered on, the drive status indicator remains off until all drives are initialized. Drives are not ready for removal during this time.
Blinks green, amber, and then powers off
An unexpected drive failure occurred.
Blinks amber four times per second
The drive failed.
Blinks green slowly
The drive is rebuilding.
Solid green
The drive is online.
Blinks green for three seconds, amber for three seconds, and then powers off after six seconds.
The rebuild stopped.
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