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Proven Technology Built by WD, powered by an Intel Xeon dual core processor, and running Microsoft Windows Server 2012 R2 Essentials, the WD Sentinel DS5100 is based on proven technologies from industry leaders. Unlike competitors’ proprietary operating systems, the WD Sentinel DS5100 is a fully configured native Windows Server which allows thousands of Windows applications to be deployed. WD Guardian Services Western Digital offers standard customer support and warranty to all WD Sentinel owners. WD Guardian Services provide additional support and warranty options for small business customers. Reliable Hardware. The WD Sentinel DS5100 includes WD Se 3.5-inch enterprise-class hard drives. Featuring a dedicated OS boot drive, dual/redundant gigabit ethernet ports, and dual/redundant external DC-in power adapter ports. This engineered redundancy, along with a bezel lock for physical security, add to the reliability of this utra-compact Storage Plus Server that can be deployed virtually anywhere. Affordable Price. The WD Sentinel DS5100 is a complete, fully configured solution with automatic backup and restore software for up to 25 users and 50 computers, all at a very affordable price. By combining a single solution for both storage and server requirements, the WD Sentinel DS5100 is a great solution for any small business looking for their first server. Enterprise Class Enterprise-class Storage Plus ServerWD Sentinel DS5100 is an enterprise-level storage server, providing unified storage with NAS and iSCSI. It uses up to four 3.5-inch datacenter-class WD Se hard drives and integrated data protection with either RAID or Windows Storage Spaces. WD hardware engineeringThe elegant design of the WD Sentinel DS5100 offers optimized serviceability, allowing you to replace data drives in seconds. With its specially-designed, mechanically-loadable and hot-swappable 3.5-inch hard drive design, there's no fumbling with trays and screws. Ultra-compact designUsing custom-built hardware and electronics, WD has incorporated an Intel Xeon class server into a quiet and cool compact chassis. Measuring just 6.3-inch x 8.10-inch x 8.8-inch (17 cm x 20.6 cm x 22.4 cm), the WD Sentinel DS5100 is able to fit on any shelf or desktop, or wherever space is at a premium. Enterprise RedundancyWD Sentinel DS5100 offers enterprise redundancy, with RAID or Windows Storage Spaces, for up to four 3.5-inch datacenter hard drives. It also offers dual Gigabit Ethernet ports, a second power supply and and Dual Boot Drives (in auto RAID 1). WD Sentinel DS5100 offers dual/redundant external DC-in power supply ports, so in the event of a power surge or other damage to the internal power supply, the second power supply takes over. This provides small businesses with the added peace of mind knowing that their server will remain operational. Drive/bezel lock for theft deterrenceThe drive/bezel lock and security lock slot of the WD Sentinel DS5100 are included for theft interference and deterrence. Performance Class Powerful performance in an ultra-compact designWD Sentinel DS5100 provides a simplified management experience and better network-wide security features. It also incorporates the latest Microsoft technologies for network data, storage and backup. Automatic backup and restore software for up to 25 users and 50 devicesWD Sentinel DS5100 includes Windows Server 2012 R2 Essentials software. It provides centralized, automated server-based backup for up to 50 Windows or Mac client computers in your network so there's no need to purchase additional backup software. Built-in Active Directory and Primary Domain ControllerBusinesses need to keep their data secure and must be able to restrict user access to it. The Active Directory and primary domain controller in the WD Sentinel DS5100 provides enterprise-class centralized management and security by authenticating and authorizing all users and computers on the network. It utilizes the latest Active Directory single sign-on and associated single sign-on to assign and enforce security policies for all computers, so when a user logs into a computer that's part of a Windows domain, Active Directory checks the submitted password and determines what data the user is able to access. High performanceThe Intel® Xeon™ dual core processor in the WD Sentinel DS5100 provides powerful performance, 8 GB RAM and read and write speeds of 100MB/sec read; 115MB/sec, respectively. Cloud integrationWD Sentinel DS5100 offers hybrid cloud and server backup with Windows Azure and Windows Azure Backup. Businesses have a choice of disaster recovery protection options, providing businesses with the peace of mind that their business data is secure. They can choose to protect their data using secure off-site data backup to the cloud, which includes disaster recovery through cloud storage services, and local disaster recovery through network share (LAN & WAN). Business Class Powerful performance in an ultra-compact designWD Sentinel DS5100 provides a simplified management experience and better network-wide security features. It also incorporates the latest Microsoft technologies for network data, storage and backup. Automatic backup and restore software for up to 25 users and 50 devicesWD Sentinel DS5100 includes Windows Server 2012 R2 Essentials software. It provides centralized, automated server-based backup for up to 50 Windows or Mac client computers in your network so there's no need to purchase additional backup software. Built-in Active Directory and Primary Domain ControllerBusinesses need to keep their data secure and must be able to restrict user access to it. The Active Directory and primary domain controller in the WD Sentinel DS5100 provides enterprise-class centralized management and security by authenticating and authorizing all users and computers on the network. It utilizes the latest Active Directory single sign-on and associated single sign-on to assign and enforce security policies for all computers, so when a user logs into a computer that's part of a Windows domain, Active Directory checks the submitted password and determines what data the user is able to access. High performanceThe Intel® Xeon™ dual core processor in the WD Sentinel DS5100 provides powerful performance, 8 GB RAM and read and write speeds of 100MB/sec read; 115MB/sec, respectively. Cloud integrationWD Sentinel DS5100 offers hybrid cloud and server backup with Windows Azure and Windows Azure Backup. Businesses have a choice of disaster recovery protection options, providing businesses with the peace of mind that their business data is secure. They can choose to protect their data using secure off-site data backup to the cloud, which includes disaster recovery through cloud storage services, and local disaster recovery through network share (LAN & WAN).