Windows Home Server (WHS) is an alternative to a network-attached storage (NAS) device for sharing files between all computers on your network. It is actually a modified PC running a customized version of Windows. WHS HP’s latest model, the MediaSmart EX490 has a number of intriguing features that make it more attractive than the previous Home Servers.

The EX490 can automatically copy music, video and photos of all computers in your network, make them accessible from any connected PC via Windows Explorer or through a web interface. In our tests, but also worked perfectly as an iTunes music server and as a UPnP media server.
It is possible to watch videos stored on the EX490 from a remote PC to the Internet via a web interface. First they will need to be encoded in a specific, low-resolution MPEG4 format. This happens automatically in the background. With its 2.2-GHz single-core Celeron processor, this is not a quick process, though.

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More useful everyday features include the ability to network a USB printer to your PC to share. It can also back up selected files from each of your computers on a schedule. Individual backup schedules can not be set, though, so all your computers back up at the same time. It can keep older versions of your files in case you need to return to them, but older backups will always be cleared to make way for newer ones.

Files stored on the EX490 is accessible from any Internet-connected computer and the computers on your local network. For this work, Windows Home Server will attempt to configure your router automatically if it supports UPnP port forwarding, otherwise you have to do this. Pictures stored on the EX490 can be automatically uploaded to a photo-sharing service like Flickr or Picasa, although we had trouble getting it to recognize our Picasa account.
The EX490 is equipped with a 1TB hard drive. It has three additional drive trays, which are easily accessible, for adding extra drives. It was quick to copy both large and small files on our Gigabit Ethernet network. Indeed, it was faster than most NAS devices we’ve seen. The WHS system does not support traditional RAID arrays, but you can enable directory replication. This is similar to RAID1, and automatically duplicates your selected folders to another disk.

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Configuring the EX490 is easy with the logically organized setup program. Additional features such as a BitTorrent downloader or FTP server could be added if necessary.
HP’s MediaSmart EX490 WHS is the best we’ve seen. It’s fast, easy to set up and quiet. It has some unique features, but some, such as video re-encoding and streaming, have limited appeal, so it’s not for everyone. It is best suited for demanding users whose needs are not met by such a high-end NAS Synology Disk Station. For more basic storage needs, such as a simpler NAS Western Digital My Book World is much cheaper.

Because the HP MediaSmart Server EX490 essentially uses a JBOD disk configuration with redundancy, it will not match the performance of comparable NAS devices a powerful RAID 0 option. It made competent, but was understandably slow in most tasks. The closest comparison is Turbo NAS QNAP TS-419P, which they managed to surpass most tasks. However, for the most part was considerably slower than other four-bay NAS devices.
That said, the EX490 MediaSmart Server file transfer performance will be enough for an overnight backup, and it is even suitable for streaming high-definition content via a Gigabit Ethernet network. However, more intensive concurrent tasks and perhaps a little too much pressure on the HP NAS device, making it more suitable for individuals and families.

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