WD Sentinel RX4100 is perfect for businesses with employees working remotely or in home offices. You have the security of knowing all your business files are safely stored on your WD Sentinel RX4100 small business storage server.
MacMall Part #: 9672706
Manufacturer Part #: WDBLVH0120KBK-NESN
Whether youre an IT expert or not, WD Sentinel is easy to install and provides secure unified storage, complete data protection, iSCSI SAN and remote file access for your employees and trusted vendors while in the office or from anywhere.
The easy setup process allows you to integrate WD Sentinel RX4100 into your office network like a pro. The administration dashboard quickly guides you through the process including adding users, setting up data access, creating shared folders and scheduling backups.
WD Sentinel RX4100 is the ideal rack mount storage server for small businesses. Its easy administration features include four drive bays with hot swappable design; redundant user-serviceable power supplies; user-serviceable fans and email alerts. In the event that an IT professional's assistance is needed, the WD Sentinel RX4100 allows them to manage the server remotely. Now that's easy!
Virtualize WD Sentinel storage using iSCSI Target
WD Sentinel RX4100 offers built-in iSCSI target functionality integrated within the Dashboard to easily manage the setup, administration and deployment of iSCSI SAN Storage. IT Pros and advanced users have the ability to partition their WD Sentinel RX4100 for both NAS File-based storage as well as iSCSI-SAN with the iSCSI Target solution powered by StarWind. This capability enables the administrator to create multiple iSCSI targets to meet the specific needs of their dynamic IT environments.
Real-time system status through the administration Dashboard or email alerts
Receive critical system updates via the built-in email alerts functionality or view real-time updates for the system and network status through WD Sentinel's Dashboard. The Dashboard includes easy-to-use task wizards that allow you to perform administrative tasks such as creating and managing user accounts, setting backup schedules and access privileges to shared folders, and monitoring the WD Sentinel's system health and alerts. The Dashboard's "Health" tab allows you to monitor the status of the storage drives, RAID configuration and power supplies, as well as temperatures, fans, CPU and network connections.
Protecting your data is critical to the long-term success of your business because recreating lost data can take hundreds of hours and cost thousands of dollars. WD Sentinel RX4100 offers a complete data protection solution and helps safeguard your business against data loss.
The drives inside
Pre-configured with four hard drives optimized for reliability, quality and performance.
Performance and data protection with RAID
Pre-configured with RAID 5 for added data protection and drive redundancy.
Automatic backup and restore for Windows clients
The included backup software saves time and space by performing a full Bare Metal Backup the first time and then automatically backing up only the data that has changed since the previous backup, using block-level deduplication technology. In the event of a data loss or a drive failure on a client computer, the WD Sentinel RX4100's fast and easy restore function finds your files or lets you restore an entire system to get you up and running again quickly.
Dual Ethernet ports
Comes configured in Adaptive Fault Tolerance, which keeps your network available by automatically switching to the second Ethernet port if the first one should fail.
Easy data retention policy implementation for Windows clients
Implement your company's data retention policy with ease to ensure regulatory compliance
Optional dual power supply
WD Sentinel RX4100 offers the small business owner the option of adding an external power supply that will take over should a power surge or other failure damage the internal power supply. With the optional external power supply you have the added peace of mind knowing that your server will remain operational.
Optional off-site disaster recovery service
Every small business should have a plan to protect its data from an unforeseen disaster (fire, flood, earthquake, etc.). KeepVault is an off-site, cloud-based data backup and disaster recovery solution that's integrated within WD Sentinel RX4100's administration dashboard. It's easy to use and cost-effective and provides built-in support for data encryption and compression for secure and faster data transfer.
Secure remote access
WD Sentinel RX4100 is perfect for businesses with employees working remotely or in home offices. You have the security of knowing all your business files are safely stored on your WD Sentinel RX4100 small business storage server. With built-in secure remote access, remote employees with access permissions can securely access business data from any computer with an Internet connection.
Fully compatible with Mac OS clients
WD Sentinel RX4100 supports Apple Filing Protocol (AFP), which provides complete compatibility for Mac OS-based client machines. Discover WD Sentinel RX4100 automatically using Bonjour, seamlessly back up your Mac OS clients using Apple's Time Machine backup utility, enjoy faster data transfer over Ethernet using AFP, and manage your WD Sentinel RX4100 server using the Administration Dashboard application for Mac.
Rack-mountable - 1U
Total Storage Capacity
Installed Devices / Modules Qty
4 (installed) / 4 (max)
North America, South America
Processor / Memory
1 x Intel Atom D525 1.8 GHz
Number of Cores
Max Supported Qty
RAID - internal
HDD - hot-swap
4 x 3 TB
Data Link Protocol
10Mb LAN, 100Mb LAN, GigE
Network / Transport Protocol
Remote Management Protocol
Network Services Compatibility
Microsoft CIFS, Network File System (NFS), Web-based Distributed Authoring and Versioning (WebDAV)
DLNA Media Server
Expansion / Connectivity
4 (total) / 0 (free) x hot-swap
2 x SuperSpeed USB 3.0 ¦ 2 x Ethernet 1000Base-T - RJ-45 ¦ 1 x VGA
1 x network cable
ENERGY STAR Qualified
X external power adapter
AC 120/230 V ( 50/60 Hz )
Software / System Requirements
Storage Operating System
Microsoft Windows Storage Server 2008 R2 Essentials
UNIX, Linux, Microsoft Windows 7, Apple MacOS X 10.5.x or later, Microsoft Windows Vista (32/64 bits) SP2, Microsoft Windows XP SP3, Windows 8
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