HP ProLiant XL220a Gen8 v2-Server - Manual (Page 11)

Component identification 11
Item LED Status Definition
1 Locate Solid blue The drive is being identified by a host application.
Flashing blue The drive carrier firmware is being updated or requires an update.
2 Activity ring Rotating green Drive activity
Off No drive activity
3 Do not remove Solid white Do not remove the drive. Removing the drive causes one or more of
the logical drives to fail.
Off Removing the drive does not cause a logical drive to fail.
4 Drive status Solid green The drive is a member of one or more logical drives.
Flashing green The drive is rebuilding or performing a RAID migration, strip size
migration, capacity expansion, or logical drive extension, or is
erasing.
Flashing
amber/green The drive is a member of one or more logical drives and predicts
the drive will fail.
Flashing amber The drive is not configured and predicts the drive will fail.
Solid amber The drive has failed.
Off The drive is not configured by a RAID controller.