User Manual

16
Checking System Status
LED Display & System Status Overview
LED
Color
LED Status
Description
System
Status
Red/
Green
Flashes green and
red alternately every
0.5 sec
1) The hard disk drive on the NAS is being
formatted.
2) The NAS is being initialized.
3) The system firmware is being updated.
4) RAID rebuilding is in process.
5) Online RAID capacity expansion is in process.
6) Online RAID level migration is in process.
Red
1) The hard disk drive is invalid.
2) The disk volume has reached its full capacity.
3) The disk volume is going to be full.
4) The system fan is out of function (TS-119 does
not support smart fan.)
5) An error occurs when accessing (read/write) the
disk data.
6) A bad sector is detected on the hard disk drive.
7) The NAS is in degraded read-only mode (2
member hard drives fail in a RAID 5 or RAID 6
configuration, the disk data can still be read.)
8) Hardware self-test error.
Flashes red every
0.5 sec
The NAS is in degraded mode (one member hard
drive fails in RAID 1, RAID 5 or RAID 6
configuration.)
Flashes green every
0.5 sec
1) The NAS is starting up.
2) The NAS is not configured.
3) The hard disk drive is not formatted.
Flashes green every
2 sec
The NAS is in S3 Sleep Mode
1
.
Green
The NAS is ready.
Off
All the hard disk drives on the NAS are in standby