Cisco UCS C240 M5

• 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
7
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 LED8
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 SSD drive fault
NVMe solid state drive (SSD) drive tray LEDs have
different behavior than SAS/SATA drive trays.
Note
7
NVMe
• Off—No drive activity.
• Green, blinking—There is drive activity.
NVMe SSD activity8
NVMe
Cisco UCS C240 M5 Server Installation and Service Guide
37
Maintaining the Server
Rear-Panel LEDs