• Green—All fan modules are operating properly.
• Amber, steady—One fan has a fault.
• Amber, blinking—Two or more fan modules have a
fault.
Fan status
5
• Off—The hard drive is operating properly.
• Amber—Drive fault detected.
• Amber, blinking—The device is rebuilding.
• Amber, blinking with one-second interval—Drive
locate function activated in the software.
SAS/SATA drive fault
NVMe solid state drive (SSD) drive tray
LEDs have different behavior than
SAS/SATA drive trays.
Note
6
SAS
• Off—There is no hard drive in the hard drive tray (no
access, no fault).
• Green—The hard drive is ready.
• Green, blinking—The hard drive is reading or writing
data.
SAS/SATA drive activity
NVMe solid state drive (SSD) drive tray
LEDs have different behavior than
SAS/SATA drive trays.
Note
7
SAS
• Off—The drive is not in use and can be safely
removed.
• Green—The drive is in use and functioning properly.
• Green, blinking—the driver is initializing following
insertion or the driver is unloading following an eject
command.
• Amber—The drive has failed.
• Amber, blinking—A drive Locate command has been
issued in the software.
NVMe drive fault
6
NVMe
• Off—No drive activity.
• Green, blinking—There is drive activity.
NVMe drive activity LED
7
NVMe
Rear-Panel LEDs
The power supply LEDs are the only rear-panel LEDs native to the chassis. Compute node LEDs that repeat
on each compute node are also described below. The rear ports and LEDs vary, depending on which adapter
card and PCIe cards are installed.
Maintaining the Server Chassis
3
Maintaining the Server Chassis
Rear-Panel LEDs
