On, off, or flashing

Alternating amber and blue

The drive has failed, or a predictive failure alert has been received for this drive; it also has been selected by a management application.

On, off, or flashing

Steadily blue

The drive is operating normally, and it has been selected by a management application.

On

Amber, flashing regularly (1 Hz)

A predictive failure alert has been received for this drive.

Replace the drive as soon as possible.

On

Off

The drive is online, but it is not active currently.

Flashing regularly (1 Hz)

Amber, flashing regularly (1 Hz)

Do not remove the drive. Removing a drive may terminate the current operation and cause data loss.

The drive is part of an array that is undergoing capacity expansion or stripe migration, but a predictive failure alert has been received for this drive. To minimize the risk of data loss, do not replace the drive until the expansion or migration is complete.

Flashing regularly (1 Hz)

Off

Do not remove the drive. Removing a drive may terminate the current operation and cause data loss.

The drive is rebuilding, or it is part of an array that is undergoing capacity expansion or stripe migration.

Flashing irregularly

Amber, flashing regularly (1 Hz)

The drive is active, but a predictive failure alert has been received for this drive. Replace the drive as soon as possible.

Flashing irregularly

Off

The drive is active, and it is operating normally.

Off

Steadily amber

A critical fault condition has been identified for this drive, and the controller has placed it offline. Replace the drive as soon as possible.

Off

Amber, flashing regularly (1 Hz)

A predictive failure alert has been received for this drive. Replace the drive as soon as possible.

Off

Off

The drive is offline, a spare, or not configured as part of an array.