Netgear ReadyNAS Duo 2-Bay 750 GB (1 x 750 GB) Desktop Network Attached Storage RND2175

What We Think Overall Rating: Pros: Compact design, energy efficient, easy-to-use, built-in RAID capability for secure storage, media streaming capability for wide variety of devices, excellent online forums for add-ons and support Cons: Insufficient user manuals, add-on software does not always have complete feature set At a Glance Capacity: 750 GB (1x750GB) Dimensions: 5.6 x 4 x 8.7 inches (HxWxD) Warranty: 3 years

The ReadyNAS Duo can serve as a digital media server for your home. View larger.

Unfortunately we don't have the space to describe everything we admire about this outstanding NAS device. What we can describe are several features that stood out, including its compact design and easy set-up, quiet and energy-efficient performance, web-, print-server and advanced media streaming features, and its outstanding data protection capabilities. (Our review of the ReadyNAS NV+ covered the system's RAID array functionality, as well several other features that the Duo shares.)

In short, this is an advanced NAS device that anyone who is serious about digital media should consider for their home network.

Easy Set-Up and Compact Design
In addition to this 750 GB version, the NETGEAR ReadyNAS Duo comes with 500 GB, and 1 TB capacities. The models share identical features, with the difference being the amount of storage in each. The version we tested, the RND2150, included a single 500 GB SATA drive in a hot-swappable carrier with room for a second drive alongside it. (Each of the models ships with a single hard disk drive and can be easily upgraded for data redundancy by installing a second compatible disk drive of equal or higher capacity. It will automatically mirror the first drive.)

While the initial set-up with the system's extremely intuitive interface took less than 20 minutes, getting the information for the more advanced-user procedures took a bit more time. NETGEAR does not ship the Duo with extensive user guides. Instead, users are directed to ReadyNAS's online community forum (www.readynas.com) for advanced set-up procedures and add-ons. While navigating the forum for information can be somewhat time consuming, the site is constantly updated by NETGEAR developers and community members. We found information easy to locate and well presented.

Like the NV+, users do not need an technical background to configure the Duo. However, a knowledge of network basics, and an ability to search for and install basic files is a must. And anyone with even a modicum of networking experience will find the Duo a breeze to work with.

The Duo is smaller than a breadbox and is constructed with a sturdy metal chassis and door. It includes a Gigabit Ethernet port and two USB 2.0 ports on the back, and an extra USB port at the front along with a "backup" button.

With two drive bays, you can easily upgrade the Duo for data redundancy. View larger.

Overall Set-Up and Design Grade: A-
We would prefer to have more documentation included with the hardware, but the online forum is an excellent source of information.

Quiet and Energy-Efficient Performance
A huge plus for us is the ReadyNAS Duo's quiet performance. A fan sits at the back of the device, softly humming. Although we disagree with the NETGEAR marketing materials and wouldn't sleep with the Duo, we wouldn't hesitate to set it alongside a home theater system, or in another common area. Compared to many other NAS devices, the ReadyNAS Duo is as quiet and unobtrusive as they come.

The Duo also lets you schedule partial or complete shut downs for additional efficiencies. So if you plan to use the device as your primary digital media server or for scheduled back ups of your data, these energy savings will quickly add up.

Overall Power Performance and Noise-Level Grade: A
What a relief to keep our carbon print (and electricity bills) low--quietly and unobtrusively.

Web Server and Advanced Media Streaming Features
Our primary reason for wanting the Duo was to serve our digital media from a single source and reduce the work load of our personal computers. With the Duo, you can kiss goodbye the need to keep your computers running when you want to stream media files. The Duo can connect via your network to such devices as the NETGEAR EVA8000, Sonos Digital Music System, Logitech Squeezebox, Apple iTunes clients, Sony Playstation 3 and Microsoft Xbox 360. In fact, it will work with just about any DLNA-compliant device.

Once we loaded our entire music collection onto the server and launched the Duo's built-in iTunes server, our music was immediately available through iTunes on our personal computers. But what really made us smile was that our digital music became instantly available through our Logitech Squeezbox player, bypassing our computers entirely. This means that we now have 24/7 wireless access to our entire digital music collection without having to turn on our computers. On the down side, because the Duo's SlimServer add-on does not offer the software's most recent updates, functionality is slightly compromised, but the advantages of instant, uninterrupted access to our music library far outweighs those inconveniences.

The ReadyNAS Duo can serve files to all your computers and compatible media players in your home.

NETGEAR's FrontView web-based control panel makes configuration and administration simple. View larger.

Overall Web Server and Media Streaming Grade: B+
Once ReadyNAS is able to update firmware concurrently with the media device updates, you'll never need a computer to serve your media files again.

Advanced Data Protection
What truly allows the Duo to live up to its "advanced NAS" moniker is it wealth of data protection features, especially its X-RAID technology, "Continuous Data Protection or CDP," and its scheduled back up abilities.

Just add a second 750GB disk drive into the empty bay, and the ReadyNAS Duo will automatically build a mirror of the first drive by copying every byte from the first drive to the second one. In case of any hard drive failure, the data is protected. We had another SATA drive on hand, so we tried this. It was as easy as securing the drive with four screws onto the carrier and plugging the drive in. The data mirroring is taken care of automatically on the fly by the unique X-RAID.

ReadyNAS Duo also includes a feature we're enthralled with called "Shadow" that not only backs up folders and files every time you save them on your computer, but also gives you the ability to save and revert to previous versions of the files. If your local file is lost or corrupted, you simply right click on the back-up file on the Duo to restore it to its original location. Every user on our network accessed this feature without a glitch. As featured on the Duo, CDP is a powerful way to keep your files protected.

And to keep the files on the Duo protected, we scheduled back-ups to a connected external USB drive. The Duo flawlessly performed a full back up the first time, and incremental back ups thereafter. And a convenient "back-up button" located on the front of the device lets you back up your entire system, or parts of it, with a single click. With the X-RAID and the backup features provided by the Duo, you'll never have an excuse to lose a byte of data again.

Overall Data Protection Grade: A
With the Duo, we will have to work hard to ever lose data again.

Conclusions
The ReadyNAS Duo is a powerful, attractive, and flexible NAS device that is great for a home network. It offers much of the functionality of a dedicated server, but since set up is mostly plug-and-play, it does not require a dedicated IT personnel to manage. As noted, the manual does not give all the answers. Fortunately, the strong online community and Web forums offer excellent support and services. And finally, the ReadyNAS Duo is backed by an industry-leading 5-year warranty, so you can rest assured that you'll be protected should anything go wrong.

What's in the Box
ReadyNAS Duo with 750 GB hard disk drive, two hard disk trays, quick installation guide, warranty card, power adapter, power cable, Ethernet cable, ReadyNAS Installation CD and Discovery Utility, and NTI Shadow for ReadyNAS for Windows and Macintosh.


Amazon.com Product Description
Amazon.com Product Description The NETGEAR ReadyNAS Duo is an ideal Network Attached Storage device for use in homes with more than one computer. The ReadyNAS Duo offers 750 GB of storage and lets you easily share your files, music, and video over a home network and access your data remotely over the Internet. It can even stream music, photos and video to a network media players without a computer.

The NETGEAR ReadyNAS Duo: Offers 750 GB of storage for Mac and PC sharing. Streams music, pictures, and videos to network media players without a computer. Lets you access and download your data from anywhere via Internet. Includes Gigabit Ethernet for super-fast data transfers. Creates a personal Web page to easily share photos with friends and family.

A Gigabit Ethernet connection means fast speeds when the ReadyNAS is connected to your home network. View larger. View back.

Removable trays make adding another drive a snap.View larger.

The ReadyNAS Duo features a Gigabit Ethernet connector that can provide a fast 1000 Mbps connection to your network, which ensures that you can stream audio and video without any hiccups. Compatible with both Macs and PCs, the ReadyNAS is the perfect solution for media storage, allowing you and your family to easily share media files seamlessly. And with an embedded BitTorrent client for direct downloading from the Internet, the ReadyNAS will ensure that you can publish, discover and download digital entertainment content quickly, easily and securely.

750 GB of Storage and Remote Access to Your Files
If you have access to a broadband Internet connection, the ReadyNAS Duo also allows you to easily access to all your files no matter where you are. If you forget to bring that one file with you for a meeting, it's simple to retrieve it from your home server, quickly and securely. You can also use the ReadyNAS Duo to host your personal Web page, so you can easily share photos and media with friends and family.

The ReadyNAS Duo comes with 750 GB of hard drive space, enough for 3,000,000 photos, 13,875 hours of music, or 1125 hours of video. (If you need more or less storage space, NETGEAR also offers the ReadyNAS Duo in the ReadyNAS Duo 500 GB and ReadyNAS Duo 1 TB models.) It includes three USB ports that allow you to directly connect USB disk drives, USB flash drives, printers, and wireless network adapters, adding even greater functionality to your home network.

This device also has easily accessible SATA hard disk drive bays with easy-to-use hot-swappable and lockable trays. Simply by adding a second hard disk drive all of your valuable files are automatically duplicated for the ultimate in file protection and back-up. NETGEAR's exclusive X-RAID technology is built into the hardware. A second drive provides full data redundancy for protection against hardware failure and takes over if the first hard drive ever were to fail. A self-managing and monitoring system offers automatic power-up and shutdown, drive monitoring, and problem identification, for even greater peace of mind.

The ReadyNAS Duo requires computers operating on Windows 2000, Windows XP Home or Professional (SP1 or SP2), Windows Vista, Mac OS X, or Linux. It has a Kensington lock security hole and is backed by a 5-year warranty.

What's in the Box
ReadyNAS Duo, 2 hard disk trays, 1 pre-loaded 750 GB Hard Drive, quick installation guide, warranty card, power adapter, power cable, Ethernet cable, installation CD, ReadyNAS discovery utility, NTI Shadow for ReadyNAS for Windows and Macintosh.