Synology DiskStation DS423 User manual

P ro d u c t Ma n u a l
D S 423
La st up d a t ed : S e p 21, 2022

1
Ta ble o f C o n t en ts
C h a pt e r 1 B ef or e Y ou S t a rt 2
1.1 Pa ck a ge c o n t en ts 2
1.2 S y n o l o g y D S 423 a t a gl a nce 3
1.3 S yst em m o de s a nd L ED indic a tors 4
1.4 O t he r L ED defini t i o n s 6
1.5 H a r d w a r e S p ecific a t i o n 7
1.6 S p a r e Pa rts 8
1.7 O pt i o n a l A cce ssor ie s 9
1.8 Sa fe ty in stru c t i o n s 9
C h a pt e r 2 H a r d w a r e S e tup 10
2.1 T oo l s a nd Pa rts f or C o m po nen t I n st a ll a t i o n 10
2.2 I n st a ll d r i v e s 10
2.3 S t a rt up Y our S y n o l o g y N A S 14
C h a pt e r 3 I n st a ll D SM o n S y n o l o g y N A S 15
3.1 I n st a ll D SM w i t h W eb A ss i st a n t 15
3.2 L e a r n M or e 16
C h a pt e r 4 S yst em Ma in t en a nce 17
4.1 R e p l a ce t he Ma lf u nc t i o ning F a n 17
C h a pt e r 5 T rou ble s h oot ing 20
5.1 T rou ble s h oot ing checkli st 20
5.2 C o mm o n i ssu e s r e so l ut i o n 21
5.3 B ef or e you c o n t a c t S y n o l o g y T echnic a l S upport 25
5.4 C o n t a c t ing S y n o l o g y T echnic a l S upport 26
5.5 G e tt ing inf or m a t i o n , hel p , a nd s e rv ice 26

2
C h a pt e r 1 B ef or e Y ou S t a rt
T h a nk you f or pur ch a s ing t hi s S y n o l o g y pro d u c t ! B ef or e s e tt ing up your ne w S y n o l o g y N A S ,
p le a s e check t he p a ck a ge c o n t en ts to v e r if y t h a t you h a v e r ecei v ed t he i t em s bel ow . A l so , m a ke
sur e to r e a d t he s a fe ty in stru c t i o n s c a r ef u ll y to a vo id h a r ming yours elf or d a m a ging your S y n o l o g y
N A S .
N ot e s :
A ll im a ge s bel ow a r e f or ill ustr a t i v e purpos e s o nl y , a nd m a y diffe r f ro m t he a c tu a l
pro d u c t .
1.1 Pa ck a ge c o n t en ts
C o n t a c t your r e s elle r if your p a ck a ge i s mi ss ing a n y o f t he bel ow c o n t en ts :
Ma in u ni t x 1 AC pow e r c or d x 1
AC pow e r a d a pt e r x 1 RJ 45 L A N c a ble x 2
S c r e ws f or 2.5" d r i v e s x 18 S c r e ws f or 3.5" d r i v e s x 18

3
S c r e ws f or s ec ur ing d r i v e tr a ys x 8
1.2 S y n o l o g y D S 423 a t a gl a nce
N o . Na me D e s c r i pt i o n
1
ST A TUS
I ndic a tor
D i sp l a ys t he st a tus o f t he syst em . F or m or e inf or m a t i o n , s ee
" S yst em m o de s a nd L ED indic a tors ".
2 L A N I ndic a tor
D i sp l a ys t he st a tus o f t he ne twor k c o nnec t i o n . F or m or e
inf or m a t i o n , s ee " O t he r L ED indic a tors ".

4
3 P ow e r B utto n
 P r e ss to pow e r o n your S y n o l o g y N A S .
 T o pow e r o ff your S y n o l o g y N A S , pr e ss a nd h o ld u n t il you
he a r a bee p sou nd a nd t he P ow e r L ED st a rts fl a s hing .
4
D r i v e S t a tus
I ndic a tor
D i sp l a ys t he st a tus o f d r i v e . F or m or e inf or m a t i o n , s ee " O t he r L ED
indic a tors ".
5 F a n
D i spos e s o f e x ce ss he a t a nd c oo l s t he syst em . I f t he f a n
m a lf u nc t i o n s , t he S y n o l o g y N A S w ill emi t a bee p ing sou nd .
6 P ow e r P ort C o nnec t pow e r c or d he r e .
7 L A N P ort C o nnec t ne twor k c a ble he r e .
8
US B 3.2 G en 1
P ort
C o nnec t e xt e r n a l d r i v e s or ot he r US B de v ice s to t he S y n o l o g y
N A S he r e .
9 R E S E T B utto n
 M o de 1 P r e ss a nd h o ld u n t il you he a r a bee p sou nd to r e stor e
t he I P a dd r e ss , D NS s e rv e r , a nd p a sswor d f or t he a dmin
a cc ou n t to def a u l t .
 M o de 2 P r e ss a nd h o ld u n t il you he a r a bee p , r ele a s e t he
b utto n immedi a t el y , t hen pr e ss a nd h o ld a g a in w i t hin 10
s ec o nd s to r ein st a ll D i s k S t a t i o n Ma n a ge r  D SM .
F or de t a iled inf or m a t i o n o n h ow to r e s e t your S y n o l o g y N A S ,
p le a s e r efe r to t hi s a rt icle .
10
K en s ing to n
S ec ur i ty S l ot
A tt a ch a K en s ing to n s ec ur i ty l o ck he r e .
1.3 S yst em m o de s a nd L ED indic a tors
S yst em m o de s defini t i o n s
T he r e a r e 7 syst em m o de s in S y n o l o g y N A S . T he S yst em m o de s a nd t hei r defini t i o n s a r e a s
bel ow :
S yst em m o de D efini t i o n
P ow e r ing o n
S y n o l o g y N A S i s pow e r ing o n w hen you pr e ss t he pow e r b utto n
or r e st a rt ing w hen you ru n op e r a t i o n s in D SM . D ur ing t he b oot up
pro ce ss , t he de v ice a l so p e r f or m s h a r d w a r e ini t i a li z a t i o n , su ch a s
h a r d w a r e r e s e t or BI OS ini t i a li z a t i o n .

5
S h utt ing d ow n
S y n o l o g y N A S i s s h utt ing d ow n a s a r e su l t o f pr e ss ing t he pow e r
b utto n or op e r a t i o n in D SM .
D SM n ot r e a d y
D SM i s n ot r e a d y f or us e . T hi s c ou ld ei t he r be :
S y n o l o g y N A S i s pow e r ed o n , b ut D SM i s n ot prop e r l y
in st a lled .
S y n o l o g y N A S i s c urr en t l y pow e r ing o n a nd ini t i a li z ing
s e rv ice s nece ss a ry f or D SM to f u ll y f u nc t i o n .
T he a tt a ched UPS de v ice h a s in su fficien t pow e r ; D SM stops
a ll s e rv ice s to pr e v en t d a t a l oss ( en t e rs s a fe m o de ).
D SM i s r e a d y f or us e D SM i s f u ll y f u nc t i o ning , a nd us e rs c a n s ign in .
H ibe r n a t i o n
S y n o l o g y N A S h a s been idle f or a w hile a nd i s n ow in H ibe r n a t i o n
m o de .
A pp lic a t i o n
C e rt a in p a ck a ge s / s e rv ice s ( e . g ., US B C opy a nd F ind me s e rv ice )
w hile in op e r a t i o n w ill c o n tro l t he a c t i o n s o f t he L ED . A f t e r t he
op e r a t i o n i s c o m p le t e , t he L ED indic a tor w ill r e tur n to i ts n or m a l
st a t e .
P ow e r ed o ff S y n o l o g y N A S i s pow e r ed o ff .
I den t if y S yst em M o de s
Y ou c a n iden t if y t he syst em m o de t h rou gh t he POW E R a nd ST A TUS L ED indic a tors . P le a s e r efe r to
t he t a ble bel ow f or m or e de t a il s .
S yst em M o de
POW E R L ED ST A TUS L ED
B l u e G r een O r a nge
P ow e r ing o n B linking O ff O ff
S h utt ing d ow n B linking S t a t ic O ff / S t a t ic
1
D SM n ot r e a d y S t a t ic B linking O ff / B linking
1
D SM i s r e a d y f or us e S t a t ic S t a t ic O ff / S t a t ic
1
H ibe r n a t i o n S t a t ic O ff O ff / S t a t ic
1
A pp lic a t i o n S t a t ic S w i t ching
P ow e r ed o ff O ff O ff O ff

6
N ot e s :
 I f t he ST A TUS L ED r em a in s st a t ic or a nge or c o n t in uous l y blink s or a nge , t hi s indic a t e s
t he r e a r e syst em e rrors su ch a s f a n f a il ur e , syst em ov e r he a t ing , or vo l u me deg r a de .
P le a s e s ign in to D SM f or de t a iled inf or m a t i o n .
T r a n s i t i o n s be tw een S yst em M o de s
T o be tt e r u nde rst a nd t he tr a n s i t i o n be tw een syst em m o de s , p le a s e r efe r to t he e x a m p le s bel ow :
P ow e r ed o n w i t h n o D SM in st a lled :
P ow e r ed o ff > P ow e r ing o n > D SM n ot r e a d y
P ow e r ed o n w i t h D SM in st a lled :
P ow e r ed o ff > P ow e r ing o n > D SM n ot r e a d y > D SM i s r e a d y f or us e
E n t e r ing hibe r n a t i o n t hen w a king up f ro m hibe r n a t i o n :
D SM i s r e a d y f or us e > I n hibe r n a t i o n > D SM i s r e a d y f or us e
S h ut d ow n :
D SM i s r e a d y f or us e > S h utt ing d ow n > P ow e r ed o ff
P ow e r f a il ur e w i t h UPS a tt a ched :
D SM i s r e a d y f or us e > D SM n ot r e a d y ( d u e to pow e r f a il ur e , D SM en t e rs s a fe m o de ) >
S h utt ing d ow n > P ow e r ed o ff > P ow e r ing o n ( pow e r h a s r ec ov e r ed , D SM w ill r eb oot ) > D SM
n ot r e a d y > D SM i s r e a d y f or us e
1.4 O t he r L ED defini t i o n s
L ED I ndic a tor C o l or S t a tus D e s c r i pt i o n
D r i v e st a tus
G r een
S t a t ic D r i v e r e a d y a nd idle
B linking A cce ss ing d r i v e
O r a nge
1
S t a t ic L o c a t ing d r i v e
D r i v e de a c t i v a t ed b y us e r
P ort di s a bled
2
D r i v e he a l t h st a tus i s C r i t ic a l or F a iling

7
R em ov ing t hi s d r i v e w ill c a us e syst em
d a m a ge ; t hi s i s t he o nl y d r i v e w i t h D SM
in st a lled
O ff N o in t e r n a l D r i v e
L A N
G r een
S t a t ic N e twor k c o nnec t ed
B linking N e twor k a c t i v e
O ff N o ne twor k
N ot e s :
 W hen t he d r i v e L ED indic a tor i s or a nge , w e r ec o mmend you s ign in to D SM a nd g o to
S tor a ge Ma n a ge r > HDD / SS D f or m or e inf or m a t i o n .
 P le a s e try to r e st a rt your S y n o l o g y N A S or r e - in s e rt t he d r i v e s , t hen ru n t he HDD / SS D
m a n u f a c tur e r ' s di a gn ost ic too l to check t he he a l t h st a tus o f t he d r i v e s . I f you c a n s ign
in to D SM , p le a s e ru n t he b u il t - in S . M . A . R . T . t e st to s c a n t he d r i v e s . I f t he pro blem
r em a in s u n r e so l v ed , p le a s e c o n t a c t S y n o l o g y T echnic a l S upport f or hel p .
1.5 H a r d w a r e S p ecific a t i o n
I t em D S 423
C PU R e a l t ek RT D 1619 B
R A M DD R 4 2 GB
C o m p a t ible D r i v e T yp e 3.5"/2.5" S A T A x 4
E xt e r n a l P ort US B 3.2 G en 1 x 2
L A N P ort 1 G b E  RJ 45 x 2
S i z e  H x W x D  ( mm ) 184 x 168 x 230
W eigh t ( kg ) 2.21
A genc y C e rt ific a t i o n
• FCC C l a ss B • CE C l a ss B • UK CA • B SM I C l a ss B
• EAC • V CCI • CCC • R C M • K C
HDD H ibe r n a t i o n Y e s
S ched u led P ow e r O n / O ff Y e s

8
Wa ke o n L A N Y e s
E n v i ro nmen t R e qu i r emen t
• L ine vo l t a ge : 100 V to 240 V AC
• F r e qu enc y : 50 / 60 H z
• O p e r a t ing T em p e r a tur e : 32 ˚ F to 104 ˚ F 0 ˚ C to 40 ˚ C 
• S tor a ge T em p e r a tur e : 5 ˚ F to 140 ˚ F 20 ˚ C to 60 ˚ C 
• R el a t i v e H u midi ty : 5 % to 95 % R H
N ot e s :
M o del sp ecific a t i o n s a r e su bjec t to ch a nge w i t h out n ot ice . R efe r to S y n o l o g y w eb s i t e
f or t he l a t e st inf or m a t i o n .
1.6 S p a r e Pa rts
V i s i t S p a r e Pa rts if you need to r e p l a ce syst em f a n s , di s k tr a ys , or pow e r supp l y u ni ts .
M o del Na me P ic tur e D e s c r i pt i o n
D i s k T r a y  T yp e D 1 3.5"/2.5" D r i v e T r a y
FA N 8020_6
S yst em F a n 808020
mm
A d a pt e r 90 W _1 A d a pt e r 90 W L e v el V I
1.7 O pt i o n a l A cce ssor ie s

9
W i t h S y n o l o g y a cce ssor ie s , you c a n c usto mi z e your S y n o l o g y N A S to fi t diffe r en t b us ine ss
en v i ro nmen ts w i t h out worry ing a b out c o m p a t ibili ty a nd st a bili ty . R efe r to S y n o l o g y P ro d u c ts
C o m p a t ibili ty L i st f or m or e inf or m a t i o n .
1.8 Sa fe ty in stru c t i o n s
K ee p a w a y f ro m di r ec t su nligh t a nd chemic a l s . E n sur e a st a ble en v i ro nmen t w i t h n o
a b rupt ch a nge s in t em p e r a tur e or h u midi ty .
P l a ce t he u ni t r igh t s ide up a t a ll t ime s .
K ee p t he u ni t a w a y f ro m li qu id s .
B ef or e cle a ning , u n p l u g t he pow e r c or d ( s ) a nd us e a d a m p cl ot h to w i p e t he
sur f a ce . D o n ot us e chemic a l a e roso l cle a ne rs .
T o pr e v en t t he u ni t f ro m f a lling ov e r , d o n ot p l a ce i t o n c a rts or a n y u n st a ble
sur f a ce s .
T he pow e r c or d ( s ) m ust be p l u gged in to t he c orr ec t pow e r supp l y vo l t a ge . E n sur e
t h a t t he AC vo l t a ge prov ided i s c orr ec t a nd st a ble .
Wa r ning , elec tr ic s h o ck h a z a r d . T o r em ov e a ll elec tr ic a l c urr en t f ro m t he de v ice ,
en sur e t h a t a ll pow e r c or d s a r e di s c o nnec t ed f ro m t he pow e r sour ce .
T he r e i s a r i s k o f e xp l os i o n if t he b a tt e ry i s r e p l a ced w i t h a n inc orr ec t typ e .
D i spos e o f us ed b a tt e r ie s a ppropr i a t el y .
P ow e r c or d ( s ) m ust be p l u gged in to a so cke t - out le t w i t h e a rt hing c o nnec t i o n .
K ee p your b o d y p a rts a w a y f ro m a m ov ing f a n .
T hi s pro d u c t m ust be in st a lled b y qu a lified p e rso nnel in a r e str ic t ed a cce ss l o c a t i o n
( e . g ., dedic a t ed e qu i p men t roo m s , s e rv ice cl os e ts , e t c .).