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WD My Cloud DL2100
2-Bay Business Series Network Attached Storage

WD My Cloud DL2100

Sorry, this product is no longer available, please contact us for a replacement.



Ultra-reliable NAS built and backed by WD.

Built from the ground up with hardware, software and storage from WD, the all new My Cloud Business Series are true all-in-one, high-performance NAS solutions designed for small businesses. The fully integrated, easy-to-deploy 2-bay systems provide the reliability, security, and scalability needed to help your small business customers succeed.

Robust data protection

Robust data protection

  • Multiple backup options: local backup, NAS to NAS, NAS to USB, USB to NAS and integrated cloud backup
  • RAID 0, 1 or JBOD and spanning
  • 256 AES volume encryption for advanced security

Maximize productivity

Maximize productivity
Powered by a high-performance Intel Atom™ dual-core processor delivering optimal multi-user and multi-application performance for small businesses.

Built-in reliability

Built-in reliability
My Cloud Business Series pre-configured NAS come populated with WD Red™ NAS hard drives. Ultra-reliable and purposely built for NAS systems, WD Red drives improve performance and thrive in 24x7 environments.

The My Cloud DL2100 is a high performance, centralized storage and backup device that is well suited for small business environments. It has been designed for centralizing small business storage with virtual anytime and anywhere access.

The My Cloud DL2100 is comes pre-configured for a user-friendly setup and system management. It also has an intuitive dashboard that helps guide you through the process of setting up users and shares, as well as customizing system features and monitoring storage. It also features a toolless and trayless drive bay design and drive installation, helping to simplify the hot swap process.

This NAS is powered by a 1.7 GHz Intel Atom C2350 processor, which will allow you to run multiple functions simultaneously. The processor features a burst speed of 2.0 GHz and the built-in 1GB of DDR3 RAM, which can be upgraded to 5GB, will allow quick access to frequently-used files and programs. Network connectivity is achieved via the 2 x Gigabit Ethernet ports. Having 2 x Gigabit Ethernet ports not only provides network redundancy in the event that one port fails, but it also provides link aggregation to help enhance network performance. In addition to the dual Gigabit Ethernet ports, it also features dual power supplies, to help keep the NAS running in the event that one of the power supplies fails. This NAS also has 2 x USB 3.0 ports.

The My Cloud DL2100 features two SATA drive bays that can accommodate 3.5" drives and use NASware technology. If users opt to use WD Red drives with this NAS, NASware technology helps to further optimize WD Red drives for the NAS environment in respect to factors such as vibration compensation, optimized power usage, and data protection in the case of a power loss or disruption. However, please note that this NAS does not include any drives, leaving users the freedom to install compatible drives of their choice.

This WD NAS also features AES 256-bit encryption that helps provide additional protection for your data, and RAID 0, 1, JBOD, and spanning can be used to configure various levels of data performance or redundancy. As this NAS features a built-in processor, this means that should a user wish to take advantage of the RAID functionality, the RAID controller is integrated into the NAS and thus RAID functionality will be controlled by the NAS and its hardware, instead of being controlled by software.

The My Cloud DL2100 operates on 100-240 VAC at 50-60 Hz and includes an Ethernet cable, as well as a power supply and cable. It is compatible with Windows 8.1, 8, 7, and Vista, as well as Mac OS X Yosemite, Mavericks, Mountain Lion, and Lion.



Built from the ground up with hardware, software and storage from WD, My Cloud Business Series DL2100 is a true all-in-one, high-performance NAS solution designed for small businesses. The fully integrated, easy to deploy system provides the reliability, security, and scalability needed to drive small business success.

Keep your business data in one safe, efficient place

Keep your business data in one safe, efficient place

Centralize and protect critical business data from all the PC and Mac computers in your workplace on one, easy to manage NAS solution. And with secure remote and mobile access, you can get to it anytime, from anywhere to share files with employees, partners and customers.

Performance to boost your business

Performance to boost your business

Powered by a high-performance Intel Atom™ C2350 dual-core processor and 1 GB DDR3 memory, My Cloud DL2100 delivers optimal multi-user and multi-application performance your business needs to maximize productivity. Ultra-fast read and write speeds of 115 MB/s and 101 MB/s give your business the power to transfer large amounts of files simultaneously, enhancing workplace efficiency.

Gigabit Ethernet Testing environment based on Dell Optiplex 9020 (SFF) with Intel Core i7, 8GB RAM running Windows 8.1 Pro using an Intel X540-T2 10G Ethernet connection. Performance may vary based on different hardware / software configurations as well as network load during testing.

Built-in reliability your business demands
Built-in reliability your business demands

My Cloud Business Series pre-configured NAS come populated with WD Red NAS hard drives. Ultra-reliable and purposely built for NAS systems, WD Red drives improve performance and thrive in 24x7 environments.

WD's exclusive NASware™ technology further optimizes WD Red for the NAS environment. From vibration compensation, optimized power usage and protecting your data in the event of a power loss or disruption, the firmware is designed to give you improved reliability, system performance, and reduced downtime.

For My Cloud Business Series diskless NAS systems, make WD Red drives your first choice for the ultimate NAS experience.

My Cloud OS - a better way to manage your data

WD's My Cloud OS delivers a suite of tools and applications that empower you to easily take control of the data that matters to you most. The intuitive administration dashboard makes setup, managing storage and system customization effortless. Our award-winning My Cloud app allows you to securely access and share your files from anywhere with computers, tablets and smartphones. And with popular thirt-party apps available for download, you are enabled to personalize your NAS to best fit your needs.

My Cloud OS - content management made simple

Robust data protection to safeguard critical business data
Robust data protection to safeguard critical business data

Lost data means lost business, so My Cloud DL2100 offers comprehensive data protection options to secure your files from unexpected loss. Protect all the PC and Mac computers in your workplace using local, remote or cloud backup. Multiple RAID configurations and volume encryption add even more protection and security for all your files. And with dual NICs and dual power ports, My Cloud DL2100 keeps you connected to your data in case of network connection or power supply failure.

Capacity and performance you need today, scalable for the future

Capacity and performance you need today, scalable for the future

My Cloud Business Series devices are designed to keep up with your future storage and performance needs. Easily hot swap in larger drives without turning off the device, keeping your business up and running. The built-in memory expansion slot allows you to increase RAM to 5 GB for improved system performance. For even more storage and speed, My Cloud DL2100 is equipped with dual Gigabit Ethernet ports that allow you to daisy-chain to another NAS device for increased network storage capacity.

Seamless business environment integration

Integrate My Cloud Business Series NAS into your existing Active Directory for streamlined file sharing, easy data management and increased business efficiency.

Seamless business environment integration

Perfect fit for virtualization environments

Perfect fit for virtualization environments

With integrated iSCSI support, My Cloud Business Series NAS easily provide storage for virtual machines, applications and servers on your network, giving you fast access to your business data.

Automatically copy your external USB with the touch of a button

Automatically copy your external USB with the touch of a button

With the built-in, one-touch copy button conveniently located on the front of the system, you can automatically copy all the files you have stored on an external USB to the My Cloud DL2100, keeping all your business files in one safe, central location.

Business-ready features

  • iSCSI target and initiator
  • Integrated FTP server
  • Network Link aggregation and failover support
  • Jumbo frame support
  • IPv4/IPv6
  • UPS support (USB and network)
  • Real-time resource monitor
  • SNMP
  • User management/group management
  • User/group quotas
  • Distributed File System (DFS)
  • Microsoft Active Directory support

My Cloud OS:

Seamless setup and management My Cloud OS delivers a suite of tools and apps that empower you to easily take control of the business data that matters to you most. From setting up the device to file sharing and collaboration, My Cloud OS makes managing and using your NAS a breeze.

Seamless setup and management

The intuitive dashboard guides you through the process of setting up users and shares, customizing system features and monitoring your storage. Plus, mobile alerts keep you informed on the status of your My Cloud Business Series NAS.

Mobilize your critical business data

From anywhere in the world, you are always connected to your My Cloud Business Series NAS with the My Cloud mobile and desktop apps. The mobile app allows you to securely access your business data using smartphones and tablets, and easily share files with co-workers, partners and clients. With the desktop app for PC and Mac computers, you can easily drag and drop files, manage your content and share links to specific files or folders via email.

Mobilize your critical business data

Customize your NAS with popular third-party apps

Free peer-to-peer file sharing application that works with the EDonkey network and the Kad network. The app provides search capability for finding desired P2P files and has a full-featured P2P server/client Web UI interface.
Open source media streaming app that can be modified to suit your individual needs.
One of the leading bulletin board solutions, including powerful permission systems, private messaging, search functions, a customizable template and language system, as well as support for multiple databases.
Content Management System (CMS) that facilitates easy management of your website text, photos, videos, music and documents.
Streaming audio server that supports MP3, FLAC, WAV, Ogg, ACC, as well as transcoding. Stream to both hardware and software receivers as well as any media player capable of playing MP3 streams.
Handles the administration of MySQL via web with ability to create and drop databases; create, drop, or alter tables; delete, edit or add fields; execute any SQL statement and manage keys on fields.
WordPress is a free and open source blogging tool and a content management system (CMS) based on PHP and MySQL. Create your own My Cloud EX2 based customized Blog that can be accessed and commented on from any internet connection.
Transmission is one of the best choices for a BitTorrent client, being both extremely lightweight and feature-packed. Transmission's interface is easy to use, yet very powerful, especially when it comes to managing bandwidth.

Advanced Features:


User management/group managementUser management/group management
Proper data and user management is key to a successful business. With My Cloud Business Series, it is easy to grant users access to the NAS, create groups and give access to those groups, and manage the amount of storage users/groups have access to.

Microsoft Active Directory support
Take advantage of centralized account management to reduce overhead and IT spending. Add My Cloud Business Series to your Active Directory (AD) server for simplified and centralized management, as well as easy access for employees with one set of domain accounts. Employees can use a single account to access various services with ease.

Distributed File System (DFS) 
Connect My Cloud Business Series NAS to a Microsoft Windows server to organize many distributed SMB file shares into a DFS for improved data availability in the event of failure or heavy workloads.

Volume virtualization using iSCSI targets
Manage storage over long distances and transfer data over LANs, WANs or the Internet by creating a Storage Area Network (SAN). My Cloud Business Series NAS allow you to create and manage iSCSI targets, similar to a local hard drive, that is accessed over a network rather than locally. The iSCSI target is protected by the underlying RAID structure of the My Cloud Business Series NAS.

Jumbo frame support
My Cloud Business Series support jumbo frames up to 9000 bytes. These large IP frames are used to increase performance over supported networks. Increases in data transfer speeds only occur if every device on your network supports jumbo frames.

Link aggregation and failover support
Combine multiple network connections to increase data transfer past a single connection and provide redundancy in the event of a failed connection. This is also known as bonding, and refers to the use of two LAN NICs present in your NAS and two cables connected to your router simultaneously, improving reliability.

iPv6 ready
My Cloud Business Series support iPv6, keeping your NAS up-to-date with the latest Internet Protocol.

UPS support (USB and network)UPS support (USB and network)

USB UPS: A supported UPS device that is connected to a My Cloud Business Series NAS via USB cable can detect a power loss and gracefully shut down power.

Network UPS: Network UPS devices can be used when there is a single UPS device and multiple My Cloud Business Series units. One My Cloud Business Series NAS can act as a "Network UPS server" and connect to the UPS device via USB or network (depending on the device). The network UPS server obtains UPS information and relays it to the other "client" Business Series NAS.

Real-time resource monitors
Real-time resource monitors

Provide up-to-date information on My Cloud Business Series resources, including CPU percentage, network utilization and RAM usage.

Virtual volumes
Virtual volumes simplify scalability by allowing you to map iSCSI targets on other network storage devices and present them as shares on your My Cloud Business Series device.

Simple Network Management Protocol, a protocol for managing devices on a network, allows My Cloud Business Series NAS to be used in a managed environment. IT administrators who need to monitor multiple network devices, including My Cloud Business Series via SNMP should download the document available.

Advanced Backup

My Cloud Expert Series provides comprehensive data protection options to secure your content from loss.

Back up, your way
Backup that's right for you
Automatically backup all the computers on your network and get flexible restore points for file version recovery. PC users, WD SmartWare™ Pro offers options for how, when and where your files get backed up. Mac users, utilize all the features of Apple Time Machine backup software to protect your media and files.

Back up to integrated cloud solutions


ElephantDrive is a premium cloud-based backup, sync and sharing solution platform. With simple, fast and reliable protection for all of your important files, ElephantDrive is the perfect solution for users at any level. ElephantDrive's software runs on all personal devices (laptops, desktops, smartphones, etc.) as well as natively on NAS devices, where it is the leading solution in the space.

Amazon S3 Backup and Restore

Amazon S3 Backup and Restore feature allows you to back up data directly to your Amazon S3 account. Amazon S3 gives you peace of mind when used as an offsite backup, should anything happen to the data stored on your My Cloud EX2.

Raid Mode Comparision
RAID 0 - Speed

RAID 0 mode provides disk striping across all drives in the RAID drive group. RAID 0 does not provide data redundancy but does provide the best performance of any RAID levels. RAID 0 breaks up data into smaller segments and stripes the data segments across each drive in the drive group.

RAID 1 - Data protection
Set the system to data protection mode (also known as mirrored mode or RAID 1) and the capacity is divided in half. Half of the capacity is used to store your data and half is used for a duplicate copy. If one drive goes down your data is protected because it's duplicated.

RAID 5 - Data protection and speed (available on 4-bay NAS)
In systems with three or more drives we recommend that you set the system to RAID 5. This gives you the best of both worlds: fast performance by striping data across all drives; data protection by dedicating a quarter of each drive to fault tolerance leaving three quarters of the system capacity available for data storage.

RAID 10 or RAID 1+0 - High reliability with high performance (available on 4-bay NAS)
RAID 10 delivers very high I/O rates by striping RAID 1 (mirrored) segments. This RAID mode is good for business critical database management solutions that require maximum performance and high fault tolerance. A system set to RAID 10 yields half the total capacity of all the drives in the array.

JBOD & spanning
JBOD is the use of one or more drives not in a RAID configuration but managed as separate logical volumes. Spanning is the combination of drives in a linear fashion to create one large logical volume. The advantage of using this mode is that you can add more drive without having to reformat the system.

Energy-Saving Features

Disk spin-downDisk spin-down
Set disk spin-down after as little as 10 minutes, saving runtime energy.

Use WD Quick View to wake My Cloud Business Series NAS without having to physically push a button.

Automatic power recoveryAutomatic power recovery
This feature automatically restarts the My Cloud Business Series NAS from an unexpected power-failure shutdown.

Scheduled power on/off
Set your own customized schedule to power on your My Cloud Business Series NAS on a daily basis to save power when not in use.

Advanced Serving

File server
Get shared storage for PC and Mac computer files that can be accessed from other workstations that are on the same network.

File server

FTP server
The fully-featured FTP server manages server to manage the transfer of files from My Cloud Business Series to a client with the following capabilities:

  • FTP bandwidth restriction (upstream/ downstream)
  • IP address block (block access from undesired IP address)
  • IP address block time limits
  • Anonymous FTP
  • Secure FTP support
  • Support File eXchange Protocol (FXP)

FTP server

P2P download server
Utilize popular Peer-2-Peer services to download torrents.

Http download server
The built in HTTP download server allows you to download files directly from the web to a My Cloud Business Series NAS.

Back up server
The My Cloud Business Series backup server is designed with flexibility in mind. Designate a back up to or from a connected USB drive or internal volumes.


Hard Drive Compatibility List
10,000rpm drives are not supported.
Manufacturer Family Model Interface Speed Capacity
WD WD Red WD20EFRX SATA 6Gb/s IntelliPower 2TB
WD WD Red WD30EFRX SATA 6Gb/s IntelliPower 3TB
WD WD Red WD40EFRX SATA 6Gb/s IntelliPower 4TB
WD WD Red WD50EFRX SATA 6Gb/s IntelliPower 5TB
WD WD Red WD60EFRX SATA 6Gb/s IntelliPower 6TB

Uninterruptible Power Supply
Manufacturer Family Model
APC Smart-UPS SMC1000
APC Smart-UPS SMT750
APC Back-UPS Pro BR1500G
CyberPower Smart App LCD UPS OR500LCDRM1U
CyberPower Intelligent LCD UPS CP1500AVRLCD
Tripp Lite Battery Back Up Tower AVR UPS Smart750USB
Tripp Lite Smart USB UPS Smart550USB


Examples of the number of photos, songs, videos and any other files that can be stored on a hard drive are provided for illustrative purposes only. Your results will vary based on file size and format, settings, features, software and other factors.

Photo: Figures represent the average number of photos taken with a 6 megapixel camera in high-resolution JPEG mode with an average file size of 3.5 MB per photo. The actual number of images will vary by camera model and compression setting.

Hours: The DV format, regardless of its mode (miniDV, DVCAM, DVC-Pro) has a data rate of approximately 25mb/s (mega-bits per second). In storage terms, this translates to approximately 3.5MB/s (Megabytes per second) or 13GB/hr (Gigabytes per hour)

Song: Music capacity is based on 4 minutes per song. MP3 capacity is based on 128 Kbps bit rate and 11:1 audio compression ratio. Uncompressed CD quality is based on 1:1 audio compression ratio.

My Cloud DL2100 Dimensions

What It Holds

As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.

Drive Size 0 TB 4 TB 8 TB 12 TB
Interface Gigabit Ethernet x 2
Power inlet (DC in) x 2
USB 3.0 expansion port x 1 rear
USB 3.0 port with direct copy x 1 front
Drive bays 2 x 3.5 inch hard drive bays, hot swap capable, tray-less design
Internal Hard Drives WD Red NAS hard drives
Processor Intel Atom C2350 1.7 GHz Dual-core
Memory 1 GB, upgradable to 5 GB with 4GB DDR3L DIMM
System Requirements
  • Windows 8, Windows 7, Windows Vista operating system
  • Mac OS X Mountain Lion, Lion, Snow Leopard and Mavericks operating systems
  • DLNA/UPnP devices for streaming
  • Internet connection for remote access
Supported Web Browsers
  • Internet Explorer 8 or higher
  • Safari 6 or higher
  • Firefox 21 or higher
  • Google Chrome 27 and later on supported Windows and Mac OS platforms
Network Protocols
  • DHCP Client or Static IP
  • NTP Client
  • Dynamic DNS (DDNS)
  • Apple Bonjour and Windows Rally
  • Jumbo frame support up to 9K
  • VLAN (802.1Q)
  • Link Aggregation and failover for 2 Gigabit Ethernet ports
  • UPnP port forwarding
  • IPv6
  • iSCSI
  • SSH
Network File Services
  • OS Supports
    • Windows XP Home/ Pro/ 64-bit SP3+
    • Windows Vista/ 7/ 8 (All versions)
    • Mac OS X 10.6, Lion, Mountain Lion
  • CIFS/SMB for Windows, Mac OS X and Linux
  • NFSv3 for Linux and UNIX
  • AFP for Mac OS X
  • Microsoft Distributed File System (DFS)
  • WebDAV Server
  • Active Directory support for Windows Server
  • Volume Encryption (256 bit AES)
File System
  • EXT4 for internal HDD
  • Support following formats for externally attached USB drives
    • FAT/FAT32
    • NTFS (read and write capability)
    • HFS+J (case sensitive)
    • Linux EXT2, EXT3, EXT4
FTP Server
  • Support Port Setting
  • Set port range of passive FTP
  • Option to report external IP in PASV mode
  • Client language selection
  • Anonymous FTP
  • Secure FTP Support
  • Support File eXchange Protocol (FXP)
  • FTP bandwidth restriction (upstream/downstream)
  • IP address block (block access from undesired IP address)
Download Management
  • HTTP downloads from a URL to a user specified folder on the NAS
  • FTP downloads of files or folders from an FTP server to another files/folders on the NAS
  • P2P Download Manager
Disk Management
  • RAID: JBOD, spanning, 0/1
  • RAID migration
    • JBOD to RAID 1
  • Hot swapping
  • Disk roaming
  • Array roaming
Power Management
  • Drive Spin Up/Down (including Attached WD USB drives)
  • Automatic power recovery (with UPS)
  • Schedule power on/off
  • Graceful shutdown on UPS low battery
  • FAN Control
  • Network UPS
  • Wake On LAN
Remote Access
  • My Cloud and WD Photos mobile app
  • My Cloud desktop app
User/Group Management
  • Max No. of Users: 512 for Samba, 800 for ADS
  • Max No. of User Groups: 64 for Samba, 200 for ADS
  • Max No. of Network Shares: Max No. of Network Shares: 128
  • User/Group assignment for network sharing/FTP
  • Quotas for groups or users
  • Assignment of users to multiple groups
  • Batch assignment of users to groups
  • Batch user creation
  • Importing users (CSV Delimited Format)
  • Importing groups (CSV Delimited Format)
Backup Management
  • Remote backups: My Cloud Business Series to My Cloud Business Series locally or remotely
  • Apple Time Machine (10.5.8+) support
  • Backup internal files or folders of the device to other files/folders on the NAS
  • Cloud-based backup services
    • Amazon S3
    • ElephantDrive (
  • Disk sync management for the attached USB ports
System Management
  • LCD display information:
    • IP Address of connected server (and friendly name)
    • Fan monitor
    • System temperature monitor
    • Disk monitor
    • Disk volume monitor
    • Ethernet plug monitor
    • Device uptime
    • Capacity remaining
    • Firmware version
  • System status: Device Information
    • Capacity usage status for the external storage
    • File category breakdown of how much video, photo, music is stored
  • Alert notifications
    • Event UI message
    • UI Alert (with message acknowledgment required)
    • Email notice
    • QuickView pop-up message
    • RED LED status
  • Network recycle
    • Support Windows CIFS
    • Support Apple AFP
  • System/FTP Log (Syslog Client)
  • HTTP/S (Web) Administration Interface (HTTP Server)
  • Firmware upgrade
  • Configuration backup and restore
  • SNMPv2
  • System Information
    • CPU percentage
    • RAM usage
    • Network performance in MB/s
USB Port
  • Support UPS monitoring
  • Support External Storage device
  • Support MTP (Media Transfer Protocol) and PTP (Picture Transfer Protocol)
Media Streaming
  • UPnP AV Media server (Twonky)
  • DLNA certification
  • Support WD TV Live, Xbox 360, PlayStation 3, Windows 8, connected TVs, Blu-ray players and digital picture frames
  • iTunes Server
Add-on Support
  • aMule - peer to peer file sharing application
  • Icecast - media streaming app
  • phpBB - Internet forum application
  • Joomla! - content management system
  • SqueezeCenter - streaming audio server
  • phpMyAdmin - My SQL administration tool
  • WordPress - blogging tool and content management system
  • Transmission - BitTorrent client
  • iSCSI Target
    • CHAP authentication
    • iSNS (Internet Storage Name Service )
    • Up to 64 iSCSI Targets
  • Volume Virtualization: NAS can be configured as an iSCSI initiator and capable of mapping any iSCSI target of the other device to be one virtual volume.
    • Virtual Disk Drive (via iSCSI Initiator)
    • Max number of virtual disk drives supported is eight (8)
Power Supply
  • Input voltage: 100V to 240V AC
  • Input frequency: 50 to 60 Hz
  • Output voltage: 19V DC, up to 6.32A
Operating Temperature 0° C to 35° C ( 32° F to 95° F)
Non-Operating Temperature -40° C to 70° C (-40° F to 158° F)
Height 5.82 in (147.80 mm)
Length 8.51 in (216.10 mm)
Width 4.28 in (108.60 mm)
Package Contents
  • NAS
  • Ethernet cable
  • Power supply and cable
  • Quick Install Guide

Drive Views:

Front View
Front View
Rear View
Rear View
Drive Pull-Out View
Drive Pull-Out View


Download the WD MyCloud Business Series Datasheet (PDF).