Service Manual

Drive indicator codes
The LEDs on the drive carrier indicates the state of each drive. Each drive carrier has two LEDs: an activity LED (green) and a
status LED (bicolor, green/amber). The activity LED blinks whenever the drive is accessed.
Figure 105. Drive indicators on the drive and the mid drive tray backplane
1. Drive activity LED indicator
2. Drive status LED indicator
3. Drive capacity label
Figure 106. Drive indicators
1. Drive activity LED indicator
2. Drive status LED indicator
3. Drive capacity label
NOTE: If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not power on.
NOTE: Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used.
Table 92. Drive indicator codes
Drive status indicator code Condition
Blinks green twice per second Indicates that the drive is being identified or preparing for removal.
Off Indicates that the drive is ready for removal.
NOTE: The drive status indicator remains off until all drives
are initialized after the system is powered on. Drives are not
ready for removal during this time.
Blinks green, amber, and then powers off Indicates that there is an expected drive failure.
Blinks amber four times per second Indicates that the drive has failed.
Blinks green slowly Indicates that the drive is rebuilding.
146 System diagnostics and indicator codes