Western Digital WDBWWD0080KBK User manual

WD My Cloud EX4
Personal Cloud Storage
User Manual
™

WD®Service and Support
Should you encounter any problem, please give us an opportunity to address it before returning this
product. Most technical support questions can be answered through our knowledge base or e-mail
support service at http://support.wd.com. If the answer is not available or if you prefer, please
contact WD at the best telephone number shown below.
Your product includes 30 days of free telephone support during the warranty period. This 30-day
period starts on the date of your first telephone contact with WD Technical Support. E-mail support
is free for the entire warranty period and our extensive knowledge base is available 24/7. To help us
keep you informed of new features and services, remember to register your product online at
http://register.wd.com.
Accessing Online Support
Visit our product support website at support.wd.com and choose from these topics:
Downloads—Download drivers, software, and updates for your WD product.
Registration—Register your WD product to get the latest updates and special offers.
Warranty & RMA Services—Get warranty, product replacement (RMA), RMA status, and data
recovery information.
Knowledge Base—Search by keyword, phrase, or answer ID.
Installation—Get online installation help for your WD product or software.
WD Community—Share your thoughts and connect with other WD users.
Online Learning Center — Start here to get the most out of your personal cloud storage
device (http://www.wd.com/setup).
Contacting WD Technical Support
When contacting WD for support have your WD product serial number, system hardware, and
system software versions available.
Registering Your WD Product
Register your WD product to get the latest updates and special offers. You can easily register your
drive online at http://register.wd.com or by using WD My Cloud EX4 Personal Cloud Storage
software.
North America Asia Pacific
English 800.ASK.4wd Australia 1 800 42 9861
(800.275.4932) China 800 820 6682 / [phone]
Spanish 800.832.4778 Hong Kong [phone]
India 1 800 11 9393 (MNTL) / 1 800 200 5789 (Reliance)
011 26384700 (Pilot Line)
Europe (toll free)* 00800 ASK4
WDEU
Indonesia [phone]
(00800 27549338) Japan 0120-994-120 / 00531-65-0442
Korea 02 703 6550
Europe [phone] Malaysia [phone] / 1 800 88 1908/[phone]
Middle East [phone] Philippines 1 800 1441 0159
Africa [phone] Singapore [phone] / [phone]/[phone]
Taiwan [phone]/[phone]
* Toll free number is available in the following countries: Austria, Belgium, Denmark, France, Germany, Ireland,
Italy, Netherlands, Norway, Spain, Sweden, Switzerland, United Kingdom.

TABLE OF CONTENTS – i
WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
USER MANUAL
WD® Service and Support................................ii
Registering Your WD Product .............................ii
1 Important User Information ....................1
Important Safety Instructions ..............................1
Recording Your WD Product Information .....................2
2 Product Overview ............................3
About the System ......................................3
About the Online Learning Center ..........................4
Package Contents ......................................5
Pre-installation Instructions ...............................6
Handling Precautions ....................................6
Product Components....................................7
3 Getting Started ..............................9
Physically Connecting the Device...........................9
Getting Started Using Online Setup Software.................13
Getting Started Without Online Setup Software ...............18
Accessing Content.....................................18
4 The Dashboard at a Glance ...................20
Launching the Dashboard ...............................20
Accessing the Dashboard for the First Time ..................21
The Dashboard Home Page..............................23
Obtaining Customer Support .............................33
Common Tasks .......................................34
5 Managing Users, Groups and Shares ...........35
About Users .........................................35
About Groups ........................................44
About Shares ........................................48
6 Backing Up and Retrieving Files ...............52
About Backups .......................................52
Managing a USB Device and USB Backups..................52
Remote Backups ......................................55
Table of Contents

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Internal Backups ......................................59
Cloud Backups .......................................61
7 Managing Storage on the WD My Cloud EX4 ....67
Storage Types ........................................67
RAID Storage.........................................67
iSCSI Storage ........................................72
Volume Virtualization ...................................76
Disk Status ..........................................81
8 Managing Apps on the WD My Cloud EX4 .......83
About Apps ..........................................83
Managing Apps .......................................83
9 Accessing Your Cloud Remotely ...............88
Enabling Cloud Access for the WD My Cloud EX4 Device .......88
Configuring Cloud Access for a User .......................88
Mobilizing Your Files with WD My Cloud EX4 Mobile Apps .......90
About WD My Cloud Mobile App .........................92
WD My Cloud Desktop Application ........................95
10 Playing/Streaming Videos, Photos, & Music ....101
Media Servers .......................................101
Media Storage .......................................103
Enabling/Disabling DLNA and iTunes ......................103
Accessing Your Personal Cloud Using Media Players..........107
Accessing Your Personal Cloud Using iTunes ...............108
11 Configuring Settings .......................110
General ............................................110
Network............................................119
ISO Mounting........................................125
Media .............................................130
Utilities .............................................131
Notifications .........................................134
Firmware Update .....................................136
12 Appendix .................................139
Appendix A: WD My Cloud EX4 Quick User Guide............139

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Appendix B: Joomla Setup Guide ........................144
Appendix C: phpBB Setup Guide.........................148
Appendix D: Supported RAID Modes......................153
Appendix E: RAID Migrations ............................153
Appendix F: Safe Mode Firmware Update Procedures .........154
13 Regulatory and Warranty Information..........155
Regulatory Compliance ................................155
Warranty Information (All Regions Except Australia/New Zealand) 156
Warranty Information (Australia/New Zealand only)............157
14 Index.....................................159

1
IMPORTANT USER INFORMATION
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Important User Information
Important Safety Instructions
Recording Your WD Product Information
Important Safety Instructions
This device is designed and manufactured to assure personal safety. Improper use can
result in electric shock or fire hazard. The safeguards incorporated into this unit will protect
you if you observe the following procedures for installation, use, and servicing.
Follow all warnings and instructions marked on the product.
Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners
or aerosol cleaners. Use a damp cloth for cleaning.
Do not use this product near any liquids.
Do not place this product on an unstable surface. The product may fall, causing
serious damage to the product.
Do not drop the product.
Do not block the slots and openings on the top and bottom of the chassis; to ensure
proper ventilation and reliable operation of the product and to protect it from
overheating, these openings must not be blocked or covered. Making sure the drive
is standing upright also helps prevent overheating.
Operate this product only from the type of power indicated on the marking label. If
you are not sure of the type of power available, consult your dealer or local power
company.
Do not allow anything to rest on the power cord. Do not locate this product where
persons will walk on the cord.
If an extension cord is used with this product, make sure that the total ampere rating
of the equipment plugged into the extension cord does not exceed the extension
cord ampere rating. Also, make sure that the total rating of all products plugged into
the wall outlet does not exceed the fuse rating.
Never push objects of any kind into this product through the chassis slots as they
may touch dangerous voltage points or short out parts that could result in a fire or
electric shock.
Unplug this product from the wall outlet and refer servicing to qualified service
personnel under the following conditions:
-When the power cord or plug is damaged or frayed.
-If liquid has been spilled on the product.
-If the product has been exposed to rain or water.
-If the product does not operate normally when the operating instructions are fol-
lowed. Adjust only those controls that are covered by the operating instructions
since improper adjustment may result in damage and require extensive work by a
qualified technician to the product to normal condition.
-If the product has been dropped or the chassis has been damaged.
-If the product exhibits a distinct change in performance, contact WD Customer
Support at http://support.wd.com.

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Recording Your WD Product Information
Remember to write down the following WD product information, which is used for setup and
technical support. Your WD product information is found on the label on the bottom of the
device.
-Serial Number
-Model Number
-Purchase Date
-System and Software Notes

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PRODUCT OVERVIEW
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Product Overview
About the System
Features
About the Online Learning Center
Package Contents
Pre-installation Instructions
Handling Precautions
Product Components
About the System
The WD My Cloud EX4 personal cloud storage system is a high-performance system
providing secure wireless access to your media and files from any computer, tablet, or
smartphone when connected to a wireless router.
Connect this powerful system to your wireless router for shared storage on your home
network and accessing your files from within and outside the home. Share files with your
Mac and PC, stream media to your television through your DLNA-enabled devices, and
access your files remotely with the WD My Cloud EX4 apps and web site.
This user manual provides step-by-step installation instructions and other important
information about your WD product. Translated versions and updates to this user manual
can be downloaded from http://products.wd.com/updates.For more information and news
about this product, visit our website at http://www.wd.com/.
Features
Ultimate reliability from the trusted name in storage – Built from the ground up with the
quality and reliability you've come to expect from WD and backed by a two-year warranty,
My Cloud EX4 is a high-performance, four-bay NAS for your home or small office. It offers a
robust all-metal enclosure, multiple RAID volumes, easy drive installation and a full suite of
apps for the power and flexibility to expand your NAS features.
Your options are endless – Choose the diskless enclosure with easy drive install and hot
swap to effortlessly add up to four drives and grow as your needs expand. Or, choose a
populated system that works right out of the box, featuring WD Red™ hard drives for
ultimate compatibility in the unique 24x7 NAS operating environment.
Drive management and data protection at its best – You’re armed with multiple options
to secure your data from loss. Choose RAID 0, 1, 5, 10 or select from spanning and JBOD
modes for even more options to manage your data.
Easy to manage – A powerful dashboard and LCD display means your system is always
under your control. Monitor your drives, manage users and utilize energy-saving features.
Email and mobile alerts keep you informed on My Cloud EX4 status.
Award-winning desktop and mobile apps – With WD’s My Cloud mobile and desktop
apps, you can upload, access and share your documents from anywhere. Conveniently
transfer files from your public cloud service to the EX4 directly from the mobile app.
Powerful apps to customize your NAS – Featuring industry-leading apps, including
aMule, Icecast, Joomla!®, phpBB®, phpMyAdmin and SqueezeCenter.
Advanced Serving Options – Integrated file server, FTP server, backup server and P2P
download server.

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Stream media to your connected devices – Stream videos and photos to connected
TVs, media players, gaming consoles and other DLNA®/UPnP®devices. Features a Twonky
7.2 and a DLNA-certified 1.5 media server. And with My Cloud EX4’s iTunes®server, you can
easily stream your music collection.
Back up, your way – Protect your data with remote backup to another EX4, integrated
cloud backup or local LAN/WAN backup. PC users, WD SmartWare™ Pro offers options for
how, when and where you back up your files for up to ten computers. Mac®users, utilize all
the features of Apple®Time Machine®backup software to protect your data.
Increase your personal cloud capacity – Simply attach a compatible USB 3.0 hard drive
directly to one of the two USB expansion ports on My Cloud EX4 and instantly expand your
storage capacity.
Integrated energy-saving features – Save money on your energy bill with disk spin-down
and scheduled power on/off.
Your own personal cloud – Unlike public clouds, My Cloud EX4 allows you to keep all your
content in one safe place on your home or office network instead of a remote server. No
mysterious location of your data. No monthly fees. No limits. Just blazing-fast performance
for your high-speed digital life.
Advanced features – iSCSI target, full-featured FTP services, link aggregation and failover
support, jumbo frame support, iPv6 ready, UPS support (USB and network), real time
resource monitor, volume encryption with boot-up password, SNMP and virtual volumes.
About the Online Learning Center
WD’s Online Learning Center provides the latest information, instructions, and software to
help users get the most out of their personal cloud storage. This web-based guide offers
step-by-step help with setting up remote access, backing up data, monitoring device status
and more. It’s an interactive resource to walk users through installing and using their
WD My Cloud EX4 device. The Online Learning Center allows you to:
Learn about your new personal cloud storage product.
Download the latest software for your product.
Find in-depth, interactive information on how to explore each of your product’s
features.
Update your product whenever new features become available.
Access an always-available resource online, without a manual or CD.

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Package Contents
WD My Cloud EX4 Personal Cloud Storage device
Ethernet cable
AC power adapter
Quick Install Guide
For information on additional accessories for this product, visit:
Operating System
Note: Compatibility may vary depending on your computer’s hardware configuration and
operating system.
US www.shopwd.com or www.wdstore.com
Canada www.shopwd.ca or www.wdstore.ca
Europe www.shopwd.eu or www.wdstore.eu
All others Contact WD Technical Support in your region. For a list of
Technical Support contacts, visit http://support.wd.com and see
Knowledge Base Answer ID 1048.
Windows®MacOSX
®
Windows 8
Windows 7
Windows Vista®
Windows XP (32 bit) SP3 or later
For Windows OS, you will need to install
Java runtime client
Mountain Lion*
Lion*
Snow Leopard
* For Lion and Mountain Lion, you will need to
install the Java runtime client. For additional
information, visit
http://support.apple.com/kb/dl1421
AC adapter* Ethernet cable Quick Install Guide
WD My Cloud EX4 Personal Cloud
Storage Device

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WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
USER MANUAL
Web Browsers
Internet Explorer 8.0 and later on supported Windows computers
Safari 5.0 and later on supported Mac computers
Firefox 12 and later on supported Windows and Mac computers
Google Chrome 14 and later on supported Windows and Mac computers
Local Network
Router/switch (Gigabit recommended to maximize performance.)
Internet
Broadband Internet connection is required for initial setup and software downloads,
as well as for remote access and mobile apps.
Pre-installation Instructions
Before beginning installation, select a suitable location for your device to obtain maximum
efficiency. Place it in a location that is:
Near a grounded power outlet
Clean and dust free
On a stable surface free from vibration
Well ventilated, with nothing blocking or covering the slots and openings on the top
and bottom of the device, and away from sources of heat
Secluded from electromagnetic fields from electrical devices such as air
conditioners, radio and television receivers.
Handling Precautions
WD products are precision instruments and must be handled with care during unpacking
and installation. Rough handling, shock, or vibration can damage the device drives. Observe
the following precautions when unpacking and installing your external storage product:
Do not drop or jolt the device.
Do not move the device while it is powered on.
Do not use this product as a portable device.
Do not remove all four data drives at the same time. This will cause your device to
become unresponsive.

PRODUCT OVERVIEW
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Product Components
Front View
Scroll buttons
LCD Display
Power LED
Power button
Drive Bay Doors
Drive LEDs

PRODUCT OVERVIEW
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WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
USER MANUAL
Back View
Kensington®
Security Slot
USB ports
Reset button
External DC In
Power port Ethernet ports
Component Icon Description
Ethernet port Connects the device to a local network.
USB 3.0 port Connects to a USB hard drive for additional storage.
Reset button RESET Restores settings such as the administrator user name and password
for the device.
Power port Connects the device to an AC adapter and the power outlet.
Kensington
security slot
For device security, the device is equipped with a security slot that
supports a standard Kensington security cable.
Visit http://www.kensington.com/ for more information.

GETTING STARTED
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WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
USER MANUAL
Getting Started
Physically Connecting the Device
Getting Started Using Online Setup Software
Getting Started Without Online Setup Software
Accessing Content
It’s easy to set up the WD My Cloud EX4 Personal Cloud Storage device -- all you have to
do is unpack your device, connect it, and wait for the Power LED on the front of your device
to turn a solid Blue. Then, download and run the quick setup software, available at
http://www.wd.com/setup.
Note: For information about safely shutting down and disconnecting the device, see
“Utilities” on page 131
Physically Connecting the Device
Note: Remove the sticker from the back of the unit prior to connecting your device.
3
1
2
3
4

GETTING STARTED
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WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
USER MANUAL
Follow the steps below to connect the WD My Cloud EX4 Personal Cloud Storage device to
a home or small office network.
1. Using the provided Ethernet cable, connect one end of the Ethernet cable to the
Ethernet port located on the back of the device.
2. Connect the other end of the Ethernet cable directly into a router or network switch port.
3. Using the provided power adapter, connect one end of the adapter into the power
supply socket on the back of the device.
4. Plug the power adapter into a power outlet. The unit powers up automatically.
5. When the LED on your device turns a solid blue, click Next on your computer page.
LCD
The LCD on the front of the WD My Cloud EX4 device displays information that make using
and maintaining your device easier. This includes:
Status Messages
Device name
IP address
Current firmware version
Fan speed
Drive status
Important: To avoid overheating, make sure the device is upright as shown in
the illustration above and nothing is blocking or covering the slots
and openings on the top and bottom of the device. In the event of
overheating, the device will perform a safe shutdown, interrupting
all processes currently being performed. If this occurs, data may
be lost.
Important: We recommend that you use the enclosed Ethernet cable for best
performance.
Important: Wait for the WD My Cloud EX4 device to finish powering up
(approximately three minutes) before configuring it. You will know
it is ready when the LED stops flashing and turns blue.

GETTING STARTED
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The WD My Cloud EX4 device allows you to scroll though the various informational
messages on your device by pressing the scroll buttons:
Alerts
When an alert occurs, the alert message displays on the LCD screen as well as the Alert
icon and window within the WD My Cloud EX4 Dashboard. For information on
managing your alerts, see “Managing Alerts” on page 31.
LEDs
Front Panel Power LED
The following table describes the front panel power LED behavior.
State Color Appearance State Description
Power Down Black
(off)
------- Device is inactive or in a power down (off)
state.
Powering Up Blue Flashing Device is powering on or in the process of
updating the firmware.
Power Up Blue Solid Device is in a power up (on) state.
Power Up (degraded) Red Flashing Device is powered up but the volume is
degraded.
Software/firmware
update
White
(may look
somewhat
violet)
Solid Firmware is currently being updated.

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Front Panel Hard Drive (HDD) LEDs
The following table describes the front panel hard drive LED behavior.
Back Panel Ethernet (Network) LEDs
The following table describes the network and activity LEDs.
Note: Looking at the port, the LED on the top left is the Activity LED, and the one on the
top right is the Link LED.
Function Color Appearance Function Description
No Drive Black
(off)
------ Drive is not present.
Drive Present, No
Activity
Blue Solid Drive is present but there is no activity.
Active Drive Blue Flashing Drive is present and showing drive activity.
Hard Drive fault Red Flashing The drive is present but has a hard drive
fault or failure.
State LED Appearance State Description
Link down Link Off Cable or device is not plugged in, or other
end of link is not operational.
Link up – 10/100
Connection
Link Yellow Cable is plugged in, and both ends of the
link have successfully established
communications. 10/100 network
connection.
Link up – 10/100/
1000 connection
Link Green Cable is plugged in, and both ends of the
link have successfully established
communications. 10/100/1000 network
connection.
Link idle Activity Solid Active communication is not in progress.
Link busy Activity Green - Blinks Active communication is in progress.

GETTING STARTED
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Getting Started Using Online Setup Software
The online setup software walks you through the steps necessary to easily connect your
device to your home or small office network. Use the following steps to download and run
the online setup software, discover the device and get started using your device. The online
setup software is available from WD’s Online Learning Center at
http://wd.com/setup/wdmycloudex4.
Downloading and Installing the Online Setup Software
Before plugging in your WD My Cloud EX4 device, use the following steps to download the
software necessary to set up your device.
1. Open a web browser. For browser requirements, see “Web Browsers” on page 6.
2. In the address field, type http://wd.com/setup/wdmycloudex4 to display the Welcome
to the Learning Center page:
3. Click WD My Cloud EX4 to display the download page:

GETTING STARTED
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WD MY CLOUD EX4 PERSONAL CLOUD STORAGE
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Note: The Learning Center automatically detects your operating system (OS). If you’d like
to download setup software for a different operating system, select your OS from the
pull-down menu at the top of the page before selecting the Download Setup
Software button.
4. Click the Download Setup Software button. The setup software downloads to your
computer.
5. Access your downloaded files, then double-click Setup.exe (Windows) or
WD My Cloud EX4 Personal Cloud Storage Setup.dmg (Mac) to open the setup
software. The Getting Started window displays.
6. Click Get Started.
7. Read the Western Digital License Agreement that displays, then select the “I accept the
terms of the License Agreement” check box and click Next.

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Connecting the Device to your Network
1. Review the information on the screen, then check your device to ensure that the device
name displays on the LCD of your WD My Cloud EX4.
2. When the LED on your WD My Cloud EX4 device is solid blue, click Next. The software
discovers your device.
3. Select your WD My Cloud EX4 device and click Next.
4. The software checks your device then begins installing your software. Continue following
the instructions outlined in “Creating a Personal Cloud” on page 16.
Note: If your device is not detected, continue to “Creating a Personal Cloud”.