Lenovo ThinkServer TD350 - Manual (Page 44)

Hot-swap-drive LEDs
This topic applies only to server models with hot-swap internal storage drives.
Each hot-swap storage drive has two LEDs on the front.
Figure 11. Hot-swap-drive LEDs
1 Activity LED 2 Status LED Description
Off Off The drive has failed or is not present.
On, green Off The drive is present but not in use.
Blinking, green Off The drive is active and data is being
transferred.
On, green Blinking rapidly (about four flashes
per second), amber The RAID controller is identifying the
drive.
On, green On, amber The RAID array has failed and cannot
be recovered. You must recreate a
new array.
Blinking, green Blinking slowly (about one flash per
second), amber The drive is being rebuilt.
System-fan status LEDs
Your server has four system fans and each system fan has one corresponding status LED on the chassis.
Remove the server cover to view the system-fan status LEDs.
Note: Depending on the model, your server might look slightly different from the illustration in this topic.
30 ThinkServer TD350 User Guide and Hardware Maintenance Manual