Iomega's Wireless Terabyte NAS

Earlier this year, we reviewed Iomega's compact single drive NAS solution, the StorCenter 250GB. For basic sharing and backup duty, the little black NAS handles simple tasks with ease but isn't really equipped to do any heavy lifting. For more-discerning enthusiasts and office users, Iomega offers the StorCenter 1TB for homes and small businesses seeking wireless 802.11g support in addition to the traditional NAS ensemble. Join us as we put the StorCenter 1TB through the paces to see if it has the right stuff. Continued... At a glance, the StorCenter 1TB looks a lot like its business-oriented cousin, the StorCenter Pro 200d, which we reviewed last fall in our NAS Roundup. On closer inspection, it's obvious these are two very different NAS boxes built for different purposes.

Iomega took the old StorCenter Pro 200d and put it on a diet. Shedding around 10 lbs. from various corners, the StorCenter 1TB now weighs in at 12.8 lbs. It's also trimmed down substantially around the edges. At 6.8-by-7.4-by-11 inches (hwd), the newer model is about 2 inches shorter in every direction. In place of the REV drive and dual 160GB drives on the 200d, the 1TB sports four 250GB Seagate Barracuda 7200.9 PATA hard drives. The new StorCenter also requires less RAM. Swapping Windows Storage Server 2003 for a Linux stack allowed Iomega to reduce the memory from 256MB to just 64MB.

A row of LEDs on the front bezel keep users updated on the status of the NAS. A solid blue glow indicates a healthy NAS. Red lights signal trouble.

Network connectivity is provided by a 10/100/1000 auto-sensing Ethernet port and a dual-antenna wireless 802.11g NIC supporting 64-bit and 128-bit WEP, WPA (TKIP or AES), and WPA2 (TKIP and AES) encryption schemes. The gigabit Ethernet and USB 2.0 ports are located on the back next to the AC plug and power button. For USB support, the StorCenter supports up to two USB printers or up to two FAT or FAT32 formatted external USB hard drives. You can still connect an NTFS-formatted drive, but it'll just have read-only access. You can also download photos directly to the StorCenter from your digital camera. We'll go into more detail about this feature later.

The chassis cover is held in place with three screws on the rear panel. Eight more screws secure the drive cage in place. Each pair of drives shares an IDE cable connection. If you do experience a drive failure within the first year, the disk is covered under warranty. Iomega's recommendation for drive failures is to ship the unit back to have a new one installed. DIY user swaps aren't supported, and Iomega indicated that some IDE drives may not be compatible with the StorCenter. If you're replacing a drive on your own, it's a good idea to use the same model Seagate that the StorCenter ships with from the factory.

A single 80mm rear fan cools the drives and chipset without making a great deal of noise. Continued... We performed throughput testing with Iometer 2004.07.30 benchmarking software. To simulate typical usage such as transferring photos, music, and movies, we used the following settings to determine sustained read and write performance for large files.

  • 256k transfer request size
  • 100% read / 100% write
  • 100% sequential distribution
We ran our tests on the following system:

Processor 2.21GHz AMD Athlon64 3500+ Venice
Motherboard ASUS A8N-SLI Deluxe
Memory 2 x 512MB Dual-Channel DDR PC3200 OCZ Platinum RAM (2-2-2-5)
Graphics Nvidia GeForce 6600
HDD 36 GB Western Digital Raptor
Ethernet Marvell Yukon PCI Gigabit Ethernet Controller
Audio Nvidia nForce Audio
Operating system Windows XP Pro Service Pack 2
Power supply Vantec VAN-470A
Network router/switch Netgear GS105 5-port Gigabit Switch, Linksys WRT54GL
Wireless IBM ThinkPad T40 with D-Link AirPro DWL-G650 Rev.B3

The StorCenter supports a few different connectivity options. We tested over wired gigabit Ethernet as well as wireless client and wireless access point mode. All wireless testing was performed at a range of 6 feet with WPA-PSK with TKIP encryption enabled. Continued... The StorCenter's wired performance isn't slow, but it isn't fast either. The similarly priced Buffalo TeraStation Home Server outpaced the StorCenter's read throughput speed by a whopping 79%. The TeraStation pulled ahead in read speed as well but by a smaller margin. Iomega informed us that it hasn't currently enabled jumbo frame support in its Linux stack, but it plans to offer this feature in more performance-oriented products in the future.

On the wireless side, users will be taking a severe performance hit when trading their wired gigabit connections for wireless 802.11g. We repeated the wireless tests at 60ft with no walls and experienced an average throughput reduction of about 0.2-0.5MB/sec for reads and writes in both modes. For less demanding applications like streaming music and sharing files, 2MB/sec. throughput may suffice for the casual (and patient) wireless user. If you're looking to support multiple wireless HD video streams, look elsewhere. The current line of 802.11n ("Pre-N") wireless routers and NICs offer "faster than wired" performance, but be aware that backwards and cross-vendor compatibility is not guaranteed. Continued... Wired setup is a cinch for both casual users and seasoned tech geeks. The Iomega Discovery Tool included in the bundled CD-ROM software suite does most of the work you. It not only detects the StorCenter on your network but also maps the drive automatically. You can also change the assigned drive letter manually if you wish. Clicking on the "Enter Device Settings" link opens up the browser-based management console.

If you're not using Windows, the StorCenter also supports Mac OS X 10.2.7 or higher and the following Linux distros: Red Hat 9, Mandrake 10, Debian 3.0, Gentoo, and Fedora Core 3.

Configuring wireless support requires a bit more input but is still reasonably straightforward. The StorCenter functions in two wireless modes: client and access point. Client mode connects the NAS to your home wireless router as a client as if it were just another PC. In this mode, other machines on the network connect to the StorCenter through a switch or router. Access point mode allows other wireless clients like a laptop to connect directly to the StorCenter. This mode allows an internet connection to be shared through the StorCenter, possibly increasing the range of your wireless network if you space the NAS and the switch far apart.

The browser-based management console provides administration options for user and group accounts, network settings, disk backups, media server (UPnP media streaming) functionality, email status alerts, and more.

With the StorCenter's four 250GB disks, you have the option of JBOD or RAID 0/0+1/5 configurations. With RAID 5, disk capacity is limited to about 750GB. In RAID 0+1 mode, it shrinks to around 500GB.

If you're a digital camera user, you'll find the camera support for the USB ports pretty handy. The StorCenter can be set to automatically download the pictures from your camera to a folder on the NAS of your choosing. The photos are organized into subdirectories based on the date they were downloaded, with each folder named after the download date. Iomega has an extensive list of supported cameras.

If you're looking to preserve your data for the long term, the StorCenter comes with a copy of Iomega Automatic Backup Pro. It lets you schedule backups to the StorCenter or an external USB hard drive. Continued... Iomega has done a pretty successful makeover of the StorCenter as a friendlier home and small business NAS. It's smaller and more affordable than its predecessor, the $1299 StorCenter Pro 200d (320GB), with more than triple the hard drive capacity. Priced at $899.95 retail, it's a horse race between the StorCenter 1TB and Buffalo's $899 TeraStation Home Server.

With 802.11g routers and switches as ubiquitous and inexpensive as they are, we're not completely sold on the StorCenter's built-in wireless support. For light file sharing duty, it's just fine. But for high volume data transfer and video streaming, you're better off with 802.11n technology or trusty wired gigabit Ethernet. In the speed department, the TeraStation has a leg up with much faster throughput performance. It also has two more USB ports, DLNA media server support, and is slightly quieter.

Read more about Storage on ExtremeTech.

On the other hand, if you don't have a wireless network or would like to upgrade an existing infrastructure to 802.11g with WEP, WPA or WPA2 level security, the StorCenter kills two birds as both a storage server and encrypted wireless access point. For shutterbugs, the extensive digital camera support makes downloading photos on the NAS quick and easy.

Product: Iomega StorCenter 1TB
Company: Iomega
Price: $899.95 Buy It Here
Pros: Built-in wireless 802.11g capability; broad digital camera support; fairly quiet operation.
Cons: Average wired transfer speeds; slow wireless throughput performance.
Summary: With built-in wireless and wired Ethernet support, the StorCenter 1TB makes sharing data easy and affordable for homes and small businesses. If you already have a wireless network or need more performance, check out the Buffalo TeraStation Home Server.
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