Buffalo DriveStation Duo HD-WH4TU3R1 User manual

DriveStation
External Hard Drive
HD-WHU3R1
HD-QHU3R5
User Manual
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Americas: www.buffaloamericas.com
Europe: www.buffalo-technology.com
35020424-02
2016.01

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Contents
Overview .........................................................................3
Diagrams...........................................................................................3
Power On/Off....................................................................................4
Specifications..................................................................6
Technical Specifications ..................................................................6
HD-WHU3R1 ............................................................................................... 6
HD-QHU3R5................................................................................................ 6
Recommended Usage ......................................................................7
Dismounting the DriveStation........................................................8
Windows ..................................................................................................... 8
Mac.............................................................................................................. 8
Troubleshooting...............................................................................9
I cannot see the DriveStation.................................................................... 9
I can see the DriveStation but I cannot access it ..................................... 9
My backup program cannot save files to the DriveStation .................... 9
Formatting ................................................................... 10
What is Formatting?...................................................................... 10
Windows ...................................................................................................10
Mac............................................................................................................10
Notes .............................................................................................. 10
Formatting with NTFS (Windows)................................................ 10
Formatting with HFS+ (Mac) ........................................................ 15

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Regulatory Compliance Information ......................... 19
The United States.......................................................................... 19
Europe............................................................................................ 19

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Overview
Diagrams
HD-WHU3R1
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HD-QHU3R5
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1 Power LED
Power On: blue
RAID Maintenance: purple
2 Access LEDs
These indicate the status of the built-in hard drives.
The top LED indicates the status for disk 1 and the bottom LED indicates the status for disk 2. (HD-WHU3R1)
The number next to the LED corresponds to the hard drive number. (HD-QHU3R5)
Power On: green

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Accessing: blinking green
Error: red
Rebuilding: blinking red
3 Power Mode Switch
See "Power On/Off ".
4 RAID Mode Button
This button can change RAID modes, confirm the current RAID mode, or rebuild the DriveStation. Refer to the
manual on the utility CD for more details.
5 USB Connector
Connect to your computer with the included USB cable.
6 DC in
Connect the AC adapter here.
7 Fan
Don't block airflow from the fan.
8 Security Slot
Power On/Off
Auto power mode will turn the DriveStation on and off automatically with your computer, or you may turn the
DriveStation off manually.
Auto: The DriveStation turns on and off automatically with your computer.
Off: This turns off the DriveStation's power.
HD-WHU3R1

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HD-QHU3R5
Notes:
• In Auto mode, after the computer is turned off, there may be a short delay before the DriveStation shuts
down.
• If the DriveStation is connected to a USB hub with its own power supply, it may not shut down automatically
when the computer is turned off. In this case, use the switch to turn it off manually.

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Specifications
Check Buffalo website for information about the latest products or compatible models.
Technical Specifications
HD-WHU3R1
Interface USB 3.0
Transfer Speed 5 Gbps Maximum (USB 3.0)*
External Dimensions
(Excluding protruding parts) 86 x 127 x 204 mm
Power Consumption 48 W (Max)
Power AC 100 - 240 V 50/60 Hz
Compatible OS
Windows 10 (64-bit or 32-bit)
Windows 8.1 (64-bit or 32-bit)
Windows RT 8.1**
Windows 8 (64-bit or 32-bit)
Windows RT**
Windows 7 (64-bit or 32-bit)
Windows Vista (64-bit or 32-bit)
Windows XP (32-bit)
Windows Server 2012 R2 (64-bit)
Windows Server 2012 (64-bit)
Windows Server 2008 R2 (64-bit)
Windows Server 2008 (64-bit or 32-bit)
OS X 10.6 or later (models with Intel Processor)
Internal Hard Drive If a hard drive in the DriveStation malfunctions, replace it with a
Buffalo OP-HDWH series drive of the same capacity.
*Connect the DriveStation to a USB 3.0 port for best transfer speeds. The DriveStation will function when connected
to a USB 2.0 or USB 1.1 port, but data transfers will be slower.
**Only basic external hard drive functionality is supported with these operating systems; some included utilities
may not work.
HD-QHU3R5
Interface USB 3.0
Transfer Speed 5 Gbps Maximum (USB 3.0)*
External Dimensions
(Excluding protruding parts) 149 x 154 x 233 mm
Power Consumption 90 W (Max)
Power AC 100 - 240 V 50/60 Hz

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Compatible OS
Windows 10 (64-bit or 32-bit)
Windows 8.1 (64-bit or 32-bit)
Windows RT 8.1**
Windows 8 (64-bit or 32-bit)
Windows RT**
Windows 7 (64-bit or 32-bit)
Windows Vista (64-bit or 32-bit)
Windows XP (32-bit)
Windows Server 2012 R2 (64-bit)
Windows Server 2012 (64-bit)
Windows Server 2008 R2 (64-bit)
Windows Server 2008 (64-bit or 32-bit)
OS X 10.6 or later (models with Intel Processor)
Internal Hard Drive If a hard drive in the DriveStation malfunctions, replace it with a
Buffalo OP-HDQH series drive of the same capacity.
*Connect the DriveStation to a USB 3.0 port for best transfer speeds. The DriveStation will function when connected
to a USB 2.0 or USB 1.1 port, but data transfers will be slower.
**Only basic external hard drive functionality is supported with these operating systems; some included utilities
may not work.
Recommended Usage
To avoid damage to data, never do any of the following while data is being accessed:
- unplug the cables
- turn off your computer
- put your computer into standby, hibernate, or sleep mode
• The DriveStation supports hot-plugging.
You can plug or unplug the USB cable while the DriveStation and your PC are on. However, never unplug the
cable while the data is being accessed. If you unplug the DriveStation while the data is being accessed, your data
may be damaged or lost.
• The first time you connect the DriveStation, it may take about 20 seconds before the power/access LED turns on.
• If your Windows computer will not boot while the DriveStation is connected, try the followings:
(1) Connect the DriveStation to your computer after rebooting Windows.
(2) Refer to your computer's manual to change the BIOS setting not to boot from a USB device.
• If your computer does not recognize the DriveStation, disconnect the USB cable and reconnect it after several
seconds. Connect the DriveStation directly to your computer without a USB hub.
• In some environment, Windows may display a message that a high-speed USB device is connected to a non
high-speed USB hub.
If your DriveStation supports USB 3.0, connect to a USB 3.0 port and the message will disappear.
If your DriveStation supports USB 2.0, connect to a USB 3.0 or 2.0 port and the message will disappear.

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• The maximum size of a file on a FAT32 hard drive is 4 GB. To use files that are 4 GB or larger, keep the default NTFS
format.
• To use the DriveStation with Mac OS, reformat with HFS+ (Mac OS extended).
• If you use the DriveStation with multiple partitions, format each partition before use.
• Never configure the DriveStation as a destination for virtual memory.
• Booting an operating system from the DriveStation is not supported.
• Some computers may display a delayed write when they return from an energy-saving state. If this happens,
unplug the DriveStation before putting your computer into the energy-saving mode.
• Do not lean any object against the DriveStation. It may cause the DriveStation to malfunction.
• You may hear some noise while the DriveStation is working, especially while it's booting or being accessed. This
is normal.
• The DriveStation may become hot during use.
The DriveStation is designed to release heat through its case. The surface of the case may become quite hot in
normal use. Even when the DriveStation is off, the case may still be warm from standby current.
• It may take some time until the power/access LED turns off after your computer is switched off.
Dismounting the DriveStation
If your computer is turned on, please follow the procedure below to unplug the DriveStation. If your computer is
turned off, then it is always safe to unplug the DriveStation. Unplugging the DriveStation incorrectly can corrupt
data. Please be careful.
Windows
1 Click the , , , or icon in the system tray.
2 When the menu opens, click the device name.
3 A message that indicates you can safely remove the device will appear. Unplug the DrieveStation.
Mac
1 Drag the DriveStation's icon to the trash ( ). Or, click the dismount icon in the sidebar of the Finder.
2 Unplug the DrieveStation.

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Troubleshooting
I cannot see the DriveStation
• If you're using the DriveStation with Windows XP, reformat the drive by building a RAID array with the
RAID utility. Refer to the manual on the utility CD for the procedure.
• Verify that the power LED is on. If it is not, then ensure that the power mode switch is in the on position. Check
the cables. The DriveStation should be connected to your computer by a USB cable. Check that both ends are
correctly plugged in.
• Verify that the hard drive inside the DriveStation is spinning. This can be verified by placing your hand on the
side of the case and feeling for a slight vibration.
• After the DriveStation has been powered on for 15 minutes or more it will begin to get warm. If neither of the
proceeding tests verified that the hard drive is spinning, then please contact technical support for further
assistance.
I can see the DriveStation but I cannot access it
The drive may require formatting. There are two ways to format the drive:
(1) Format the drive by building a RAID array with the RAID utility. Refer to the manual on the utility CD for the
procedure.
(2) Format the drive from Disk Management in Windows. Refer to "Formatting" for the procedure.
My backup program cannot save files to the DriveStation
Reformat your DriveStation with NTFS or HFS+ (Mac OS extended). FAT32 is limited to 4 GB file sizes.

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Formatting
What is Formatting?
Formatting is a process that creates a file system, allowing a drive to be usable with your computer.
The DriveStation is formatted with NTFS by default.
Windows
Keep the default NTFS format.
Mac
Refer to the procedure below to reformat with HFS+ (Mac OS extended).
Notes
• Never unplug, reset, or turn off the computer during the formatting process. This could result in damage to the
drive or other problems. Proper operation cannot be guaranteed if the format process is interrupted.
• Formatting will erase all data on the hard drive. Before formatting, back up any data. The user is responsible for
any data lost due to formatting of the hard drive.
Don't format the wrong drive! Check the drive letter and partition name carefully.
Formatting with NTFS (Windows)
The DriveStation is formatted with NTFS by default.
If the drive has been formatted with HFS+ to use with a Mac and you want to reformat with NTFS, follow the
procedure below.
Notes:
• The drive can also be formatted by building a RAID array with the RAID utility. However, the RAID utility
cannot format only some partitions.
• If you're using Windows XP, the drive may not be able to be formatted by the following procedure. In this
case, use the RAID utility.
1 Connect the DriveStation to your computer with the supplied USB cable.
2 Click ( ) on the taskbar. Right-click This PC and select Manage.
For Windows Vista, Windows XP, follow the procedure below:
Click Start. Right-click Computer (My Computer) and select Manage.
Note: If the "User Account Control" window opens, select Yes or Continue.

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3 Click Disk Management.
4 Right-click the disk area assigned to the DriveStation and select Delete Volume.
Notes:
• Formatting will erase all data on the disk. Don't format the wrong disk!
• If the disk assigned to the DriveStation appears as "Unallocated", proceed to step 6.
5 Click Yes.

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6 Right-click the unallocated space and select New Simple Volume.
7 Click Next.
If this screen opens
Select Primary partition and click Next.

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8 Leave the default (maximum size) setting as it is and click Next.
9 Click Assign the following drive letter and specify a drive letter. Leave the other settings at their default values
and click Next.
10 Configure each setting as below.
(1) Select Format this volume with the following settings (Format this partition with the following settings).
(2) Select NTFS.
(3) Leave the allocation unit size set to its default setting.
(4) Enter a name for the volume.
(5) Click Next.

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Note: If the DriveStation does not have any partitions, do not insert a check mark for Perform a quick format. If a
check mark is inserted, the formatting process may not be completed normally.
11 Click Finish. Formatting will begin.

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12 If the formatting process completed normally, "Healthy" is displayed.
If the message "The request cannot be completed because the volume is open or in use" is displayed
The partition was created, but the format didn't complete. Click OK to format the partition as below.
(1) Right-click the newly created partition and select Format.
(2) If necessary, set the file system to "NTFS" and enter a name for the volume in the "Volume label" field. Click
OK.
If Perform a quick format is checked, the format will be completed much quicker.(3) Follow the on-screen
instructions.
Formatting with HFS+ (Mac)
If you want to use the DriveStation with a Mac, follow the procedure below to reformat it with HFS+.
Notes:
• Use a Mac computer to format the drive with HFS+. Windows does not support HFS+.
• For more details on HFS+, consult your Mac OS help.
1 Connect the DriveStation to your computer with the supplied USB cable.
2 Select Go - Utilities from the menu bar.
3 Double-click Disk Utility.
4 Click the disk to be formatted.

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Note: Formatting will erase all data on the disk. Don't format the wrong disk!
5 Configure each setting as below.
(1) Click Partition.
(2) Select 1 Partition.
(3) Select the number of partitions that you want to create on the drive.
(4) Click Options.

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6 Select Apple Partition Map and click OK.
7 Select Mac OS Extended (Journaled) and click Apply.

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8 Click Partition.
This completes the formatting process.
Note: If "Do you want to use Volume_name to back up with Time Machine?" is displayed, you may click Use as
Backup Disk and Time Machine will use the drive for backup. If you don't want to use it as a dedicated backup
drive, click Cancel.
Note:

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Regulatory Compliance Information
Only use the cables and accessories that are included in the package. Don't use other accessories or cables unless
specifically instructed to in the documentation.
The United States
FCC Statement
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Proposition 65
WARNING:
This product and its components contain chemicals known to the State of California to cause cancer and birth
defects, or reproductive harm. Wash hands after handling.
Europe
AC Adapter
HD-QHU3R5 Asian Power Devices Inc. DA-90C19 or DA-90F19