QNAP TS-451 User Manual

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3. Volume
This section shows the disk configuration of the NAS. The first line shows the RAID
configuration and storage capacity; the second line shows the member drive number
of the configuration.
R
A
I
D
5
7
5
0
G
B
D
r
i
v
e
1
2
3
4
If there is more than one volume, press the “Select” button to view the information.
The following table shows the description of the LCD messages for RAID 5
configuration.
LCD Display
Drive configuration
RAID5+S
RAID5+spare
RAID5 (D)
RAID 5 degraded mode
RAID 5 (B)
RAID 5 rebuilding
RAID 5 (S)
RAID 5 re-synchronizing
RAID 5 (U)
RAID 5 is unmounted
RAID 5 (X)
RAID 5 non-activated
4. System
This section shows the system temperature and the rotation speed of the system fan.
C
P
U
T
e
m
p
:
5
0
°
C
S
y
s
T
e
m
p
:
5
5
°
C
S
y
s
F
a
n
:
8
6
5
R
P
M
5. Shut down
Use this option to turn off the NAS. Press the “Select” button to select “Yes”. Then
press the “Enter” button to confirm.
6. Reboot
Use this option to restart the NAS. Press the “Select” button to select “Yes”. Then press
the “Enter” button to confirm.

QNAP TS-451 Specifications

General

RAID levels	1, 5, 6, 10, JBOD
Storage drive size	2.5/3.5 \
Storage drive capacity	3000 GB
Supported file systems	ext3, ext4, FAT32, HFS+, NTFS
Storage drive interface	Serial ATA III
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Total installed storage capacity	12 TB
Maximum supported storage capacity	- TB
Number of storage drives installed	4
Processor cores	2
Processor model	-
Processor family	Intel® Celeron®
Processor frequency	2.41 GHz
Flash memory	512 MB
Internal memory	1 GB
Internal memory type	DDR3L
Maximum RAM supported	8 GB
Wi-Fi	No
Ethernet LAN data rates	1000 Mbit/s
Supported network protocols	CIFS/SMB, AFP(v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Fiber ports quantity	0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Chassis type	Tower
Cooling type	Active
Fan diameter	120 mm
Product color	White
LED indicators	HDD, LAN, Status, USB
Number of fans	1 fan(s)
Cable lock slot type	Kensington
Type	NAS
Device class	Home & Home Office
Backup features	Cloud, iSCSI LUN
Number of users	4096 user(s)
Security algorithms	256-bit AES, FIPS 140-2, HTTPS, SSH
Operating system version	4.1
Operating system installed	QNAP Turbo System
AC input voltage	100-240 V
Power supply location	External
Power supply unit (PSU) capacity	90 W
Cables included	AC, LAN (RJ-45)
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 95 %

Weight and Dimensions

Depth	235 mm
Width	180 mm
Height	177 mm
Weight	3000 g
Package weight	4300 g