Usin
g
the Front Panel for Operations
53
W
hen one HDD errors ([1do
w
n]) in RAID5 mode, the data on the
remaining HDDs can
b
e read and recovery is possi
b
le.
W
hen t
w
o HDDs errors ([2do
w
n]) in RAID6 mode, the data on the
remaining HDDs can
b
e read and recovery is possi
b
le.
Note:
•
W
hen errors (1do
w
n) occur in RAID6 mode,
q
uickly execute
error recovery.
1
Replace units that have an HDD access indicator that
li
g
hts or blinks red.
(1)
Press the knob on the HDD unit.
(2)
Open the lever.
(3)
Remove the HDD unit.
Remove the HDD carefully so you do not
b
ump it (
b
e
careful not to drop it).
2
Use the HDD numbers for the HDD bay slots as a
g
uideline when insertin
g
the new HDD unit into the
empty slot.
Press the HDD unit
'
s removal kno
b
do
w
n and lift the lever,
and then insert it all the
w
ay into the disk slot.
(1)
Hook the HDD unit's tab securely on the
HDD bay slot.
(2)
Press the lever down and push the HDD
unit until the removal knob clicks.
3
The HDD is automatically reco
g
nized and recovery
starts. When recovery starts, the HDD access indicator
blinks oran
g
e and red.
4
When errors are recovered, the HDD access indicator
g
oes off or li
g
hts
g
reen.
W
hen t
w
o HDDs have errors in RAID6 mode, data recovery
of the second HDD starts after the first HDD.
Replacin
g
Faulty HDD durin
g
RAID
Operation
Important:
•
Do not turn off the po
w
er until RAID is recovered. Data
recovery may not
b
e done normally
w
hen the po
w
er is turned
off.
(3)
(2)
(2)
(1)
(1)
(1)
(2)
ND400_Basic.book 53 ページ ２００８年４月８日 火曜日 午後３時５９分
