Dell Precision 7920 Tower Owner's Manual

Hard drive indicator codes

Each hard drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the current status of the hard drive. The activity LED indicator indicates whether the hard drive is currently in use or not. The status LED indicator indicates the power condition of the drive.

Hard drive indicators

NOTE: LED status or activity indicators will only work with a backplane with each carriers shown below.

1. hard drive activity LED indicator
2. hard drive status LED indicator
3. hard drive

NOTE:If the hard drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not turn on.

NOTE:Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used.

Table 1. Hard drive indicator codesThe hard drive indicator codes table describes the indicator codes: flashing green, steady green, and amber.

Hard drive status indicator code	Condition
Flashes green twice per second	Identifying drive or preparing for removal.
Off	Drive ready for removal. NOTE:The drive status indicator remains off until all drives are initialized after the system is turned on. Drives are not ready for removal during this time.
Flashes green, amber, and then turns off	Predicted drive failure.
Flashes amber four times per second	Drive failed.
Flashes green slowly	Drive rebuilding.
Solid green	Drive online.
Flashes green for three seconds, amber for three seconds, and then turns off after six seconds	Rebuild stopped.