D-Link DNS-323 2-Bay Network Attached Storage Enclosure Review

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(More customer reviews)I needed a network storage, and I wanted some degree of user-extensibility (hackable). After much research, DNS-323 became an obvious choice, at least based on specification, figures, reviews and user reports. The budget was under $200, and it's incredible how expensive NAS boxes are in general.
Here are some models I considered and why they didn't make the cut:
Linksys Storage Link for USB 2.0 Disk Drives NSLU2 an amazingly flexible NAS that's also cheap. It has a very large and healthy development community for its hacks. However it requires external enclosure and is much slower. NSLU2 also doesn't spin down the drives by default (reports say you can with some tweaks). Has the least functions out of the box. Very tempting alternative however, due to its being a favorite platform for hackers/developers and consequently a legendary bang for the dollar.
Linksys Network Storage System with 2 Bays (NAS200) follow up on the NSLU2, has two SATA bays, seemed perfect. However Linksys decided to drop a dog of a chip in there, making it slower than even the old NSLU2 out of the box. The chip is also different and odd compared to NSLU2, making it a dubious candidate for development projects. Heat dissipation is also a reported problem, as well as fan noise. It's relatively new so no development projects (hacks) are centered around it. I wonder with the lackluster hardware if it ever will.
Buffalo LinkStation Pro Shared Network Storage LS-320GL - NAS - 320 GB - Serial ATA-150 - HD 320 GB x 1 - Gigabit Ethernet Has everything--gigabit, speedy processor, large ram-but only 1 bay and comes with a drive that I don't need. Replacing the drive voids warranty, and the drive doesn't spin down (big no). Isn't as well made as there are numerous reports of it failing after a few months. Also a very hackable unit like NSLU2, and were designed to encourage it.
I came into the decision on my DNS-323 with a slight mistrust of D-Link products, after having owned several buggy network hardwares in the past. The justification for the purchase was its reported speed by many, often comparable or beating units more than several times its cost. It's one of the few "budget" boxes that actually delivers the speed it promises.
It has a 500mhz processor, the Marvell 88X7042 SATA controller and marvell's 88E1111 gigabit network handler. All proven workhorses. a very efficient case design with small volume/footprint, the dual bay sata with raid, standard linux file format (ext2), the ability to spin down and its operating power efficiency. For the money, there's really none other on the radar with these credentials.
Receiving the product is another revelation. I'm the obsessive-compulsive type who can see every single flaw, which tend to be plenty on mass produced products these days. I couldn't find one scratch on the brushed metal sides of this NAS case. The product is very solid, with hefty metallic casing (I don't think you can find any NAS box made of metal under $200.. or maybe even $500), that actually has a suede rubberized finish on top and bottom. The metal case proved to be important as it helped dissipated the heat of the drives as I turned off the fan with scripts later. It is also VERY spatially efficient, with no space wasted. The only gap between the drives were well thought out as cooling channel. I don't think it could get any smaller without hurting its function. The speed-controlled fan is very quiet to the point of being nearly silent; an amazing feat due to its size (40mm). I don't think I have ever seen a small fan that quiet. The lights are discreet, no Christmas colors. The box looked great and exuded quality. I can't complain about the build quality at all. It's just well made with solid components. D-link's accountant must be asleep at the switch.
Installation is easy. You just open the front face cover and slide in the drives. Connect the power and network cable and that's it. It comes with (or you can download) a software that automatically maps the drive for you. (you can do it yourself too quite easily. it's not proprietary in any way) The configuration page is also very straightforward. Perhaps a bit too plain vanilla, but what it has just works. Have been using ftp and itunes server extensively. I haven't tried raid 1 (which reportedly have issues with older firmwares) or the upnp media server. Otherwise I haven't had problems with the firmware, which I upgraded to 1.03. Firmware 1.04 is due soon, and I tried the beta versions as well without yet running into problems.
The speed didn't disappoint. I didn't have a gigabit network at home though, but at the 100mbps ethernet, it registers 99%+ throughput on transfers. It was able to sustain the speed for the entire 400+gb I transferred on initial set up without any breaks or stops. In other words I haven't been able to touch its limit yet. After almost 3 weeks of constant use, there's not one problem on its basic features: storage and serving files over the network. It just does what it should, even if I fancied more imaginative features.
Now the hacking part: I've discovered after my purchase that there's a sizable contingent of users on the web who have tackled and extended the capability of this solid piece of hardware. I really hoped D-link was stronger on their firmware design or implement more features, but it looks like they have had problems and thus became conservative, resutling in the plainness of the standard firmware.
If you google fun_plug or check out dns323.info, you'll find all the information you need to explore the untapped potential of this rather capable hardware set. I was able to get this little puppy to be a bittorrent client, a web server, upgrade the itunes server, deliver media streaming over http, customize its fan control (it really doesn't run that hot with my wd5000aaks, helped by the metal case. The hack cuts on fan power and the already unnoticeable noise, and maybe even lower dust levels), and use its usb for storage as well as print server; and I just started playing with it 3 days ago! There are also many security enhancements that solves many of the network functional lackings mentioned in other reviews here. Due to the way the firmware is written, you don't even need to change the firmware to attach all these features. I'm not good with hacking, but it's really not that hard for most of these "hacks". I suspect most people can follow the instructions just fine.
To conclude: this is a solid NAS hardware that has a doubter and a miser convinced of its value for the dollar in the course of the past 2.5 weeks. As a basic network storage, this thing works very well. If you venture into the available hacks, you can really make it work like you dreamed it and maybe even more. I am not giving it 5 stars only because I wish D-link provides some if not all these wonderful hacked features to suit its rather robust hardware, and that I only had limited exploration of its features. However, as it stands, it works quite reliably and fast out of the box. That is probably the most important to most people. For me, it delivered.4/10/2009 UPDATE
The unit still works very reliably, serving as a server that just about never failed in any way. Thanks to ever improving "attached" plug-in packages, its service options have diversified greatly, working well as my home file/print/web/media server while I travel.
All is well, until the most recent upgrading of the drives, where I wanted to add an extra drive with the old one in one of the bays. What it is supposed to do, and as it does also display in its configuration page, is to format the new one while leaving the old one alone. The prompt also specifically says so. What it did instead, however, was to format both drives, taking my old drive's data with it.
It is not a user error, but a firmware flaw. Later I found that it is reported to be a problem since firmware version 1.04, and mine is the latest of 1.06. This is a mass storage device often entrusted with possibly terabytes of data, especially with today's cheaply available large capacity hard drives, and about two years into its product life cycle--this sort of engineering negligence is bordering criminal, and downright pathetic. Two thumbs down for D-Link on this one, and I wish I have the means to hold them responsible.
That said, I cannot take away the star ratings, although I would remove a star at least. The hardware is still robust and high quality, and I observed and suspect it's something of an open/shared hardware platform that's not entirely due to D-Link's credit. The stock firmware however is just astoundingly dangerous. It is a good idea to back up your data, especially if you plan to change the disk configuration (add/remove disks, switching on RAID, etc.) or upgrading firmware. Still, it's quite inexcusable, not to mention inconvenient (forced to back up a possible back-up storage device? Did the point just become moot?). Just something I want you to know before committing, or until they fix this 800lb-gorilla problem.
Frankly I think it would serve D-Link better to make the firmware open source, since they obviously couldn't find the means to apply themselves to make it at least safe. However, this unfortunately joins many other d-link products that suffered from incomplete product development. A shame, but that's never my choice to make. You may still have the power of the wallet to elect, and with ever increasing NAS options out there, my review may not be entirely correct about available alternatives anymore.
Caveat Emptor. Thank you.

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Safely Share Digital Files Locally and Over The Internet The D-Link DNS-323 2-Bay Network Storage Enclosure, when used with internal SATA drives, enables you to share documents, files, and digital media such as music, photos, and video with everyone on the home or office network. Remotely accessing files through the Internet is also possible with the built-in FTP server2. Whether you are allowing access locally or over the Internet, keep data safe by only giving rights to specific users or groups. When configuring the DNS-323, you can create users and groups and assign them to folders with either read or read/write permissions. This is ideal for an office environment with employee-specific sensitive data or for the home where you can ensure your children will only have access to age appropriate material.Stream Digital Media Content To Upnp™ Av Compatible Media Players Back up your music, photo, and video collections to the DNS-323 for safekeeping. Then, enjoy the benefits of

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