High-Performance Double-drives RAID NAS Powered by Windows®


This product keeps the high performance of TeraStation series, powered by Windows Server® 2008 R2 optimized from Windows Server OS. The product can be used as file sever/data storage for Windows®. Perfect compatibility to original Windows®, all kinds of functions can be used in Windows Server® 2008 R2. Compared with previous Windows Server® 2003 R2, the product supports iSCSI, hardware system upgrade and sharing protocol SMB2.1, backup software and hard drive encryption support realizes the high performance. Besides, increasing functions by using relevant software.

TeraStation Pro Duo WSS provides high performance two hard drives RAID based network storage. Powered by Intel Atom D510 dual-core processor with 2GB memory, TeraStation Pro Duo WSS provides class-leading performance enabling faster read/write performance and concurrent access from multiple computers. TeraStation Pro Duo WSS, powered by Windows Storage Server 2008 R2 Workgroup Edition, provides seamless capability with Windows computers and servers. Active Directory support provides easy integration and user/group management in larger Windows network. Replication synchronizes files and folders between two TeraStation to protect important data. As disaster recovery, DFS Replication even allows data synchronization of TeraStations in remote locations via Internet.

Optimal file server for use in Active Directory environments

This product employs the Windows Storage Server 2008 R2 (Workgroup Edition) , comprising a more focused and limited set of functions from the Windows Server OS. It can be incorporated as an optimal low-cost, affordable file server/data storage for Windows environments.
Highly compatible with existing Windows environments, this unit gives you use of the abundant functions only available with Windows. The iSCSl support, improved hardware specs and SMB2.1 file protocol provide high performance operation. Further functions include addition of improved backup features, iSCSl storage compatibility, disk encryption, and more. Compatible software can also be used to simplify addition of further functions.

Enhanced transfer speeds

•Dual-core CPU and 2GB memory make transfer of large amounts of data faster

TeraStation Pro WSS runs on the dual-core, high clock speed Intel Atom D510 processor with 2GB of memory for superior performance. This is a perfect solution for offices that use large amounts of data or have numerous computers connected, or in any situation where processing speed is critical.

*Testing conducted by BUFFALO in March, 2012
<Devices> [PC] CPU: Intel Celeron P4500 (1.86 GHz), Memory: 2GB, OS: Windows 7 Home Premium 32 bit [NAS] WS-QV4.0TL/R5 (RAID 1 setting) <Measurement method> The WS-QV4.0TL/R5 was connected via LAN to a the computer, and sequential writing was measured in five tests using benchmarking software (CrystalMark 2004R3 Ver.
*Measured values were obtained in a specific test environment; this does not necessarily guarantee similar results can be achieved in all operating environments.

*Testing conducted by BUFFALO in March, 2012
<Devices> [PC] Dell Studio XPS 8100, CPU: Intel Core i7 (2.93 GHz), Memory: 4GB, OS: Windows 7 Home Premium 64 bit [NAS] WS-QV4.0TL/R5 (RAID 5 setting) <Measurement method> With 3 computers simultaneously accessing the NAS, sequential reading was measured using benchmarking software (IOmeter 2006.7.27)
*Measured values were obtained in a specific test environment; this does not necessarily guarantee similar results can be achieved in all operating environments.

•Features USB 3.0 ports for faster backups to external hard drives

Duration of backup time to external hard drive from Terastation Pro WSS via USB 3.0 is 1/3 of via USB 2.0. For instance, 800GB backup completes in approximately 8 hours.

*Testing conducted by BUFFALO. in March 2012
<Devices> [NAS] WS-QV4.0TL/R5 (supporting USB 3.0), WS-Q4.OTL/R5 (supporting USB 2.0) [EXTERNAL HDD] HD-Wl2.0TLU3/R1 <Measurement method> The time to copy 1,000 800KB files to the external hard drive was measured. up to deletion of the file transfer dialog.
*Measured values were obtained in a specific test environment; this does not necessarily guarantee similar results can be achieved in all operating environments.

Numerous convenient functions for administration and operations

•Joining Active Directory makes administration more efficient. Allows unlimited users and groups

TeraStation Pro WSS uses the account information registered in the Active Directory server to control access to files and folders stored on the unit. This means the it requires no separate account management. In addition, the server can accommodate an unlimited number of registered users and groups, so it can be used even in large-scale environments. Active Directory centralizes management of account information, which vastly reduces the work of setup and administration, even with systems using multiple units.

•Shared Folder Shadow Copy function enables restoration of data, even data accidentally delete by users

Copies of the shared folder can be created automatically according to administrator-specified schedules. If a user accidentally deletes a file, the user himself can use Explorer or a major Microsoft Office application* to directly restore the deleted file to when last saved.

*Use of Shared Folder Shadow Copy requires the client computer to be running Windows XP SP2 or later.

Multiple backup options, and RAID enhance safety and reliability

For terabyte-class data protection, we recommend the "Replication" function, which saves the data to two independent WS-WVL/R1 units. Systems utilizing the Replication function offer greater reliability and superior availability-if one of the WS-WVL/R1 units happens to fail, the system can be rebuilt simply by replacing the cable to the other WS-WVL/R1.

* [Models confirmed to support the replication function]
WS-WVL/R1 Series, WS-QVL/R5 Series, WS-RVL/R5 Series, WS-WVL/R5 Series, TS-8VHL/R6 Series, TS-6VHL/R6 Series, TS-QVHL/R6 Series, TS-RVHL/R6 Series, TS-WVHL/R1 Series, TS-XL/R5 Series, TS-RXL/R5 Series

•Normal operation (replication mode)

There are two LAN ports equipped on the unit. One is connected to the network, and the other is connected to the backup NAS. Data written to the main unit is backed up in file units (updating a file triggers saving and deletion on the main unit).

*You can specify individual shared folders for backup. Up to a maximum of 32 shared folders may be specified.

•Failure of the main unit

After opening the web settings screen for the backup WS-WVL/R1 and changing the settings, the backup device can be used as the main unit.

*Settings and other types of information other than the flies themselves are not replicated.

•Rebuilding replication

The repaired WS-WVL/R1 is connected as a backup to the LAN port of the unit currently being used as the main drive. The replication settings are reconfigured, synchronizing the data on the main and backup drives and returning the setup to normal replication mode.

•DFS Replication allows you to save data to a remote location via the network

TeraStation Pro WSS supports "DFS Replication," which allows you to back up files to a WS-WVL/R1 in a different location via the network. Backing up data to a remote location via the Internet protects your data, even when there is a breakdown locally. Even if a natural disaster or other such major problem occurs at the head office, the backup data in the remote locations allow to recover data.

*Difficulties in backing up may occur in some network environments. We recommend that the system be evaluated and verified in advance.
*Use of this function requires Active Directory on Windows Server 2003 R2 or later. In addition, the two WS-WVL/R1 units must be located in the same forest.

•Supports RAID 1 and 0. Features more powertul data protection

There are two internal HDDs equipped in the unit and features "RAID," a technology that can recognize and show multiple hard drives like a single drive and which allows the storage to be configured in accordance with the user's needs. Using RAID 1 mode, for example, if one internal drive fails, you can recover the content. allowing you to keep your data safer as you use the device. If you aren't using RAID, you can then use the Normal mode, in which the two drives are used as independent drives.

RAID Mode Comparison Table

*The WS-WVL/R1 is set to RAID 1 mode when shipped.
*While RAID 1 is effective for data protection, this does not mean that complete protection is guaranteed. Please be sure to back up your important data.

•Backup functions allow detailed settings (Using Windows Backup)

Advanced backup settings let you back up your important data in accordance with your needs.

Backup destination
- Other WS-WVL/R1 on network, or external HDD connected to USB port
If the WS-WVL/R1 you normally back up files to fails, you can access the saved data either by connecting to the backup WS-WVL/R1 or connecting the backup USB HDD to the computer and reading the data.

Backup destination task settings
(up to 32 separate tasks can be programmed)

- You can use the schedule function to set day of week and time settings for tasks.
This enables You to perform regular scheduled backups automatically.

Setting for the hidden shared folders
- Read-only setting, password setting
- You can modify the backup settings to keep the backup WS-WVL/R1 from being invisible on the network, allowing you to prevent loss of data due to unauthorized overwriting and modifying.

Use as iSCSI storage of file servers or virtual server

The iSCSl standard enables data to be transmitted over a network (LAN) by encapsulating SCSI commands using the TCP/IP protocol. TeraStation Pro WSS supports iSCSI Software Target 3.3. While connected to the network (LAN), TeraStation Pro WSS is recognized as a local disk, just like a USB hard drive or other hard drives. The unit is recognized once the "initiator" is installed on the computer or server.

*The initiator is pre-installed on Windows 7/Vista/Server 2008, Windows XP/Server 2003 initiator can be downloaded free of charge from the Microsoft website.

•Perfect as for additional storage of file server

You can use TeraStation Pro WSS as an additional storage when server capacity runs low. Since it's connected to the LAN, it can be set up nearly anywhere.

•Use as storage of virtual servers

It is ideal as additional storage of virtual servers. Mirroring with two of this NAS units creates a system with even greater redundancy.

Robust fault tolerance and highly reliable design

•Hot-swappable hard HDD

The internal drives are hot-swappable, so they can be replaced in the event of a hard drive failure, with no need to switch off the power. It is designed to minimize effects on the system when disks are replaced. The RAID array absent the failed hard drive allows the system to be used as usual, even while the drive is being replace, so there is no extra obstacle to normal business operations.

In the unlikely event of an internal drive failure, the failed drive can easily be replace by the user. Replacement is a snap, no screwdriver or other tools are required.

*For safety, please wear gloves or similar protection when replacing disks.
*BUFFALO assumes no liability whatsoever for loss of data on drives damaged during transport, whether for warranty repair or free repair.
*Replacement drives other than conforming rnodeis are not supported.

•Extremely reliable hardware

The design of the unit and ventilation fan help ensure air flow, which is critical in holding down temperatures inside the case. The fan used is very quiet. It also monitors temperatures within the case and automatically regulates the fan speed for quiet yet effective cooling.

Utilizes specially designed, highly reliable power supply unit
The components are rigorously designed to handle high-temperature environments and extended operation. The highly reliable power supply withstands even continuous 24-hour-a-day use. BUFFALO recommend confidently to even business users with systems running for long hours.

Front panel dust filter
The filter prevents dust from getting inside the unit, which reduces the load on the fan and contributes to more stable operation.

*This product is primarily designed for use in office environments. It does not intended to completely remove all dust from the air. It is not intended for use in factories, on construction sites, and other environments generating large amounts of dust.

•Linked with UPS

The unit can run off of an APC or Omron UPS (uninterruptible power supply). This helps prevent data loss and other troubles that can occur during momentary power interruptions, tripped circuit breakers, and other unexpected power outages. in addition, the UPS can safely shut down the unit if there happens to be an interruption in the outside power supply. The UPS should be connected to the D-sub 9-pin communications port or USB port.

Advanced administrative functions from security to operations

•Advanced TeraStation access administration
Group administration function provides flexibility and rigorous security

Read-only and read-write attributes can be set for the individual folders and files residing on the unit. You can also restrict access to shared folders for groups and users individually for secure, efficient data management.

Quota function allows setting of users' available capacity

File server resource managers can set and manage the amount of storage capacity, in folders and volumes. Managers can also set NTFS quotas*, providing users and groups the appropriate amount of disk space while preventing any one user or group from making excessive use of the hard drive.

*Volume must be formatted for NTFS.

Offline File function is convenient for mobile computer users

Although shared folders cannot be accessed when not connected to the network, the unit does support the "Offline File" function included in Windows Vista/XP/2000 and Windows Server 2008/2003. This function enables users to access folders and files even when you are offline, just as if they were connected to the network. Files can be referred to and changed (changes in files are synchronized between the computer and the unit the next time the user connects to the network).

•Security slot to guard against theft

A security slot is provided on the rear panel. Used with other security products, this feature is helpful in preventing theft of the unit in stores and offices.

Simple setup and recovery functions

Once you've got this NAS in place, setting it up is a breeze with the special setup utility. "NAS Navigator 2," included with the unit, automatically detects and accesses any NAS on the network, right from your computer. Just click on the NAS icon shown in the NAS Navigator 2 window-you can then connect to the remote desktop and access shared folders.

•Control the unit directly though the display and USB keyboard or mouse

You can connect a display and USB keyboard or mouse to the unit and show the settings screen in the display. This convenient feature allows you to work right in the settings screen, just as you do with a computer.

•Includes USB memory for recovery.
Recovering from failure simply and quickly

This unit includes a Utility USB memory stick that comes in very handy in recovering from unforeseen failures. In the event of a failure, set the USB/HDD boot switch on the rear panel to "USB," insert the USB memory in the USB port, and switch on the power to restore the unit to its default factory settings. This lets your recover from failures quickly and easily, without the need for any display, mouse, keyboard, or any other devices.

*Only the OS is recoverable. Settings and data cannot be recovered.

•LCD panel displays status and information

The LCD panel on the front of the unit indicates IP addresses, and error status.

Other features

•Use of two LAN ports enables access to each segment to be managed separately

This NAS is equipped with two LAN ports, enabling access from each segment to be managed separately. Unrelated divisions are prevented from connecting to each other's networks, while being allowed to access the data stored on their own WS-WVL/R1.

•Print Server function

This NAS includes the "Print Server" function that lets multiple computers share a single printer through the network. This allows printers, even those without any Ethernet ports, to be used as networked printers.

*Only compatible with Windows.
*Duplex communications for printers is not supported.
*Function is not guaranteed to work with all printers.
*Only one printer may be connected to the USB port.


Name WS-WVL/R1


Type Desktop
CPU Intel Atom D510
Clock 1.66GHz
Memory 2GB

Internal Hard Drives

Number of Drives 2
Drive Interface SATA II
Supported RAID Levels 0, 1, JBOD (Normal)
Drive Capacity WS-WV2.0TL/R1(2TB) WS-WV4.0TL/R1(4TB)

LAN Interface

Standard Compliance IEEE802.3/3u/3ab
Speed and Flow Control 10/100/1000 Mbps (Auto Sensing)
Number of Ports 2 x RJ-45 (Auto MDIX)

USB Interface

Standard Compliance USB 2.0 / USB 3.0
Connector Type A type
Number of Ports 2 x USB2.0 / 2 x USB3.0

UPS Interface

Standard Compliance D-Sub 9pin
Number of Ports 1

Other Interface

Number of Ports -

Key Feature

IP Camera -
Redundant Power Surpply -
Hot Spare -
Hot Swap Y
Replication Y
Failover -
Amazon S3 -
Port Trunking Y
Disk Quota Y
Virus Scan -

Protocol Support

Networking TCP/IP
Directory Integration Active Directory
Management HTTP/HTTPS
Time Synchronization NTP


Client OS Support Windows® 7 (32/64bit) Windows Vista™ (32/64bit), Windows® XP, Windows® 2000, Windows® Server 2003, Windows® Server 2008, Mac OS® X 10.4 - 10.7
Power Consumption 47W (Max)
Dimensions (LxWxH, ) 170 x 170 x 230
Weight 4.5 kg
Operating Environment 5-35°C, 20-80% (non-condensing)
Power Supply AC 100-240V, 50/60Hz
Warranty 3-year

Package Contents

Contents TeraStation Pro Duo WSS(WS-WVL/R1)
LAN Cable
AC Cable
Front Panel Key
Utility Media(USB Memory)
Quick Setup Guide
Warranty Statement
WS-WVL/R1 / 2012-12-17Product DatasheetDownload
WS-WVL/R1 / 2014-02-14產品規格表(繁體中文)Download

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