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Chapter 4 . LED a nd Ala r m Buzze r Spe cifica t ions
The LED indicators of t he NAS indicate t he system status and inform at ion. When t he NAS is
turned on, check t he following it em s to m ake sure t he syst em status is norm al. Not e t hat
t he following LED inform at ion is applicable only when users have properly inst alled t he hard
drive, and connect ed t he NAS t o t he net work and t he power supply.
LED Color LED St at us Descr ipt ion
Syst em
St at us
Red/
Green
Flashes green
and red
alt ernat ely
every 0.5 sec
1. The hard drive on t he NAS is being
form att ed.
2. The NAS is being init ialized.
3. The syst em firm ware is being updat ed.
4. RAI D rebuilding is in process.
5. Online RAI D Capacity Expansion is in
process.
6. Online RAI D Level Migrat ion is in process.
Red
1. The hard drive is invalid.
2. The disk volum e has r eached it s full
capacity.
3. The disk volum e is going t o be full.
4. The syst em fan is out of funct ion.
5. An error occurs when accessing
( read/ w rite) the disk data.
6. A bad sector is det ected on the hard
drive.
7. The NAS is in degraded read- only m ode
( 2 m em ber drives fail in a RAI D 5 or RAI D
6 configurat ion, t he disk data can still be
read) .
8. Hardware self- t est error.
Flashes red
every 0.5 sec
The NAS is in degraded m ode ( one m em ber
drive fails in RAI D 1, RAI D 5 or RAI D 6
configurat ion) .
Flashes green
every 0.5 sec
1. The NAS is start ing up.
2. The NAS is not configured.
3. A hard disk drive is not form at t ed.
every 2
The NAS is in S3 sleep m ode
1
.
Green The NAS is ready.
Off
All t he hard disk drives on the NAS are in
st andby m ode.
1
This feature is only available on certain NAS m odels. Please refer to t he product specificat ion t able
for det ails at w ww.qnap.com .
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