4. Names and Functions of PartsExpress5800/T120h User’s Guide40Chapter 1 General DescriptionNVMe drive LEDNVMe SSD is a PCIe bus device. Devices connected to the PCIe bus cannot be removed until the signals ofdevice and bus and traffic flow are completely terminated.Important Do not remove the NVMe drive from the drive bay if the removal-prohibitingLED is blinking. The blinking of the removal-prohibiting LED indicates thatthe device is still in use. Removing the NVMe drive before the device signalsand traffic flow are completely terminated may result in data loss.No. Item Status Description1 Position Check LED Lights in blue The drive is identified by the host applicationFlashes in blue Drive carrier firmware is being updated orrequires an update2 DISK ACT LED Rotates in green Drive is workingLights off Drive is not working3 DISK STATUS LED Lights in green The drive is a member of one or more logicaldrives.Flashes in green The drive is being rebuilt; or the drive istransferring RAID, transferring stripe size,increasing capacity, or increasing the logicaldrive; or the drive is being erased.Flashes inamber/greenThe drive is a member of one or more logicaldrives, and it is estimated that there is aproblem with the drive.Flashes amber The drive is not configured, and it is estimatedthat there is a problem with the drive.Lights in green There is a problem with the drive.Lights off There is no organization in the drive by theRAID controller.4 Removal Prohibition LED Lights in white Do not remove the drive.Remove the drive once it is separate from thePCIe bus.Flashes in white The drive can be removed.Lights off The drive has been removed.