Amber/blue LED—Managed by the drive backplane in conjunction with the storage controller and is used to indicate drive status.
Green LED—Managed by the drive itself and indicates the drive activity.
LFF LFF low-profile drive carrierlow-profile drive carrier
The LFF low-profile drive carrier supports hot-plug hot-plug, SAS, and SATA.
SFF SFF basic drive carrierbasic drive carrier
The SFF basic drive carrier supports hot-plug SAS, SATA, NVMe .