QNAP Security VioStor NVR (Version: 3.3.2) - Manual (Page 31)

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Flashes red
The hard drive data is being accessed and a
read/write error occurs during the process
Red A hard drive read/write error occurs
Flashes green The hard drive data is being accessed
HDD
Red/
Green
Green The hard drive can be accessed
Flashes blue
every 0.5 sec
1) A USB device is detected
2) A USB device is being removed from the
NVR
3) The USB device connected to the front
USB port of the NVR is being accessed
4) The NVR data is being copied to the
external USB device
Blue
The USB device connected to the front USB
port of the NVR is ready
USB Blue
Off
The NVR has finished copying the data to the
USB device connected to the front USB port
eSATA † Orange Flashes The eSATA device is being accessed
† The eSATA port is available on certain models only. Please refer to
for more information.