QNAP TS-451 User Manual

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When RAID 1, RAID 5, or RAID 6 configuration is executed, the system will initialize the
hard drives, create the RAID device, format the RAID device, and mount it as a volume on
the NAS. The progress will be shown on the LCD panel. When it reaches 100%, the RAID
volume can be accessed. Users can create share folders and upload files to the folders on
the NAS. In the meantime, to make sure the stripes and blocks in all the RAID component
devices are ready, the NAS will execute RAID synchronization and the progress will be
shown on “Disk Management” > “Volume Management” page. The synchronization rate is
around 30–60 MB/s (vary by hard drive models, system resource usage, etc.)
Note: If a member drive of the RAID configuration was lost during the synchronization, the
RAID device will enter degraded mode. The volume data is still accessible. If a new member
drive is added, the NAS will start to rebuild. The status can be checked on the “Volume
Management” page.
To encrypt the disk volume*, select “Yes” when the LCD panel shows <Encrypt
Volume?>.The default encryption password is “admin”. To change the password, please
login the web-based administration interface as an administrator and change the settings
in “Device Configuration” > “Disk volume Encryption Management”.
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When the configuration is finished, the server name and IP address will be shown. If the
NAS fails to create the disk volume, the following message will be shown.
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Note: The data encryption functions may not be available in accordance to the legislative
restrictions of some countries.

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