User manual

112
Sta nda rd RA ID
5
QNAP RA ID 5
Sta nda rd RA ID
6
QNAP RA ID 6
Degraded mode
N-1
N-1
N-1 & N-2
N-1 & N-2
Read Only
Protection (for
immediate data
backup & hard
drive
replacement)
N/A
N-1, bad blocks
found in the
surviving hard
drives of the
array.
N/A
N-2, bad blocks
found in the
surviving hard
drives of the
array.
RAID Recovery
(RAID Status:
Not Active)
N/A
If re-plugging in
all original hard
drive to the NAS
and they can be
spun up,
identified,
accessed, and
the hard drive
superblock is not
damaged.
N/A
If re- plugging in
all original hard
drives to the NAS
and they can be
spun up,
identified,
accessed, and
the hard drive
superblock is not
damaged).
RAID Crash
N-2
N-2 failed hard
drives and any of
the remaining
hard drives
cannot be spun
up/identified/
accessed.
N-3
N-3 and any of
the remaining
hard drives
cannot be spun
up/identified/
accessed.
N = Number of hard disk drives in the array