QNAP TS-439U-SP Turbo NAS TS-439U-SP Manuel D’Utilisation

QNAP TS-439U Series is the new generation 1U rackmount model of the 
worldwide award-winning Turbo NAS Series, providing superior performance 
for massive data sharing, powerful all-in-one business server features, 
advanced RAID data protection, built-in iSCSI target service, AES 256-bit 
volume-based encryption, and rock-solid hot-swappable hard drive design for 
business.

Superior Performance and Advanced RAID Redundancy
The TS-439U Series is featured with Intel® Atom 1.6 GHz CPU and 1GB 
DDRII memory. It supports RAID 0/ 1/ 5/ 6/ 5 + hot spare, JBOD, 
Online RAID Capacity Expansion, and Online RAID Level Migration.

Flexible iSCSI and Virtual Disk Solution
The TS-439U series can serve as a NAS, an iSCSI target server or an iSCSI 
initiator. The built-in iSCSI target feature provides an affordable IP-SAN 
(Storage Area Network) alternative for business. You can set up the NAS to 
expand the storage capacity of the existing application servers, such as 
database server and mail server in an economic way. Moreover, the VDD 
(Virtual Disk Drive) feature is supported on the TS-439U series that you can 
use the built-in iSCSI initiator to connect to other iSCSI targets on the 
network to expand the storage capacity of the NAS.

The TS-439U-RP is designed with two 150W power supply units which 
prevent the server from downtime, in the event of a short circuit of one power 
supply. Even if one of the power supplies fails, the other one will take over to 
supply the full power and the TS-439U-RP can operate as usual.

Secure Data Protection by AES 256-bit Volume-based Encryption
The TS-439U Series’s dominant “volume-based encryption” feature secures 
the server data by AES 256-bit encryption. Even if the hard drives were 
stolen, there is no need to fear the confidential data would be leaked since 
the data can only be accessed by an authorized password.

Versatile Applications for Business
The TS-439U Series supports file sharing across Linux, UNIX, Mac, and 
Windows platforms. Versatile business are supported, e.g. file server, FTP 
server with encryption, printer server, PHP/MySQL supported web server, 
encrypted remote replication, Windows AD (Active Directory) SSH login and 
web page SSL login.

The NAS offers advanced RAID 0, 1, 5, 6, 5 + hot spare, single, and JBOD disk 
configurations. It also supports hot-swap design that a failed drive can be 
replaced by hot swapping without turning off the server. Besides, the best-in-class 
RAID on the NAS brings users a higher level of data security by allowing one 
more hard drive failure than other NAS of the same level.

The “Virtual Space Allocation” (Thin Provisioning) feature is provided which allows 
you to flexibly allocate the capacity of iSCSI LUN (Logical Unit Number) at the 
beginning regardless of the physical volume capacity. When the physical storage 
capacity of the volume is going to be full, you can easily expand the storage 
capacity of the NAS by “Online RAID Capacity Expansion”.

Online RAID Capacity Expansion
The storage capacity of a RAID configuration can be expanded by replacing the
hard drives with larger ones. All the data will be kept and seamlessly moved to the
newly installed hard drives. There is no need to turn off the server during the process.

Online RAID Level Migration
You can upgrade the disk configuration to higher RAID level with the data 
retained. There is no need to turn off the server during the process.

The encrypted file system feature enables you to build encrypted disk volumes on 
the NAS for the first time installation. The disk volume is securely protected by 
AES 256-bit encryption. An encryption key is required to unlock the encrypted 
volume to access the server data. This prevents data leakage if the server or the 
hard drives were stolen.

Virtual Disk Drive (VDD) adds flexibility to storage expansion along with ease of management
The unique "Virtual Disk Drive" adds flexibility to expand the capacity of NAS. By using the built-in iSCSI 
initiator, the NAS can connect to other iSCSI targets on the network and turn them into virtual disks, which 
become multiple single volumes on the NAS. Up to 8 virtual disks can be stacked. The NAS serves as the 
storage stack chaining master. The user only needs to connect to this single entry (QNAP NAS) and is able to 
reach and use all the iSCSI target storages on the network.

Volume 1

iSCSI Application: Storage expansion for application servers

LUN2 for server #2

LUN1 for server #1

Application

Server #1

Application

Server #2

IP-SAN

Volume 2

Public

Sales

Office

Partner

NAS Application: File sharing through SMB/CIFS, AFP and NFS

Application Diagram of NAS Plus iSCSI All-in-one System

NetBak Replicator (no license account limitation)
The backup software, NetBak Replicator, is provided for the NAS users to perform 
real-time synchronization or schedule backup from multiple PCs to the NAS.

Remote Replication by Rsync
The data on the Turbo NAS can be backed up to or from another Turbo NAS or 
Rsync server over the network.

3rd Party Backup Software Ready
Acronis True Image, CA BrightStor ARCserve Backup, EMC Retrospect, Symantec 
Backup Exec, and LaCie Silverkeeper.

USB One Touch Auto Copy
The USB one touch copy button can be configured to trigger instant data backup 
from the external USB device to the NAS or the other way round (applies to the USB 
device connected to the front USB port of the NAS only).

SNMP (Simple Network Management Protocol) 
Enable SNMP service on the NAS to actively send the information, warning or error 
of the NAS to max 3 SNMP trap addresses installed SNMP management tool. 
Moreover, MIB of NAS can be downloaded and imported to your PC with SNMP tool. 
Your PC can then acquire the info of the NAS actively, e.g. cpu-usage, temperature.

Instant SMS and Email Alert
You can configure the SMTP server and SMSC server settings on the NAS in order to 
receive instant system warning or error messages by email or SMS.

Smart Fan
The fan rotation speed is automatically adjusted according to the server's temperature. 
You can also define the system temperatures to trigger high speed or low speed rotation 
of the fan. By manually setting the fan rotation speed, the fan will rotate at the defined 
speed continuously.

S.M.A.R.T. & Advanced HDD Health Scanning (HHS)
The NAS supports Hard Disk Drive S.M.A.R.T. (Self-Monitoring Analysis and Reporting 
Technology) for monitoring the HDD status. Moreover, the NAS is embedded with HHS  
which supports disk checking and bad blocks scanning.

Wake on LAN
Enable this option to power on the NAS remotely by Wake on LAN. Wake on LAN 
helps you manage your NAS conveniently.

• Testing benchmark program: ZD NetBench version 7.0.3

• Client PCs (16 Total): Intel Celeron 1.6GHz CPU, 1GB DDRII 667, Atheros AR8121 GbE Chip, Windows XP SP3

50

0

100

150

200

250

300

350

400

1

4

8

12

16

(Number of clients)

Throughput (MBit/s)

83.6

Total Throughput

384.2

(Number of clients)

0.5

0.0

3.0

2.5

2.0

1.5

1.0

1

4

8

12

16

Response Time (milliseconds)

Average Response Time

TS-439U Series, Single 

TS-439U Series, RAID 5

TS-439U Series, RAID 6

Other NAS (RAID 5 Mode)

1. Policy-based Unauthorized IP Blocking: You can allow, deny or 

auto block specified IP address or network domain which attempts to connect 
to Turbo NAS via SSH/ Telnet/ HTTP(S)/ FTP/ samba/ AFP.

2. Comprehensive Event Log System: Detailed logs of file-level data access to 

the Turbo NAS via samba, FTP, AFP, HTTP, HTTPS, Telnet, iSCSI, and SSH, 
and networking services accessed by online users are all recorded.

4. Remote Login by SSH (secure shell) or Telnet connection is supported.

5. SSL Security (HTTPS): The Turbo NAS can be accessed and configured by 

the web browser securely. You can upload a secure certificate and RSA private 
key in X.509PEM format issued by a trusted provider for the users to access 
the Turbo NAS by secure SSL login.

6. Secure FTP: The data can be transmitted with SSL/TLS (explicit) encryption. 

Passive FTP port range setup is also supported.

7. Write-only access right on FTP server: The third party partners are allowed to 

upload data to the NAS but not able to read or edit the data via FTP.

8. Encrypted Remote Replication: The data on the NAS can be backed up 

to or from another Turbo NAS over the network securely.

3. Syslog Setting: All the system event logs and connection logs can be saved to 

a remote syslog server.

9. Share Folder Management: For the security of Windows network environment, 

you can hide or show network share folders.

10. User Authority Management: You can create user ID and password, and 

define the authority and quota for each user.

The TS-439U Series can act as a NAS and iSCSI target server at the same time. 
It provides a cost-efficient iSCSI solution to set up an IP-SAN. You can make use 
of the built-in iSCSI target service to add up to 8 iSCSI devices. Different iSCSI 
Target LUNs (Logical Unit Number) can be defined as storage expansion or 
backup destination of the existing application servers, such as database servers 
and mail servers.

For business, a high-performance and flexible storage expansion solution for the 
existing application servers is required. However, DAS (Direct Attached Storage) is 
not an efficient solution and a Fiber Channel SAN is too expensive and 
complicated to implement.

Hard Disk Standby
The hard disks can be configured to enter standby mode if there is no disk access 
within the specified period.

Redundant Power Supply
The TS-439U Series supports two power supply units, each of which is capable of 
supplying the power for the NAS independently. If one of the units fails, the other 
one will take over to supply the power. You can replace the failed power supply 
unit without turning off the server.

Schedule Power on/off
The flexible schedule power on/off feature is provided for you to manage the NAS 
server’s up time according to the working hours.

UPS Support
The NAS supports the majority of USB UPS devices which enables you to store 
the data in time and avoid critical data loss when power outage occurs during 
data transfer.

500GB

500GB

500GB

500GB

2TB

2TB

2TB

2TB

Router