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Written by Bruce Normann   
Monday, 28 November 2011
Table of Contents: Page Index
IOCELL NetDISK 351UNE Network Storage Device
Closer Look: IOCELL NetDISK 351UNE
Insider Details: IOCELL NetDISK 351UNE
IOCELL NetDISK 351UNE Features
IOCELL NDAS Software Features
IOCELL NetDISK 351UNE Specifications
NAS Testing Methodology
Basic-Disk Test Results
Non-Traditional NAS Test Results
NAS Server Final Thoughts
IOCELL NetDISK 351UNE Conclusion

IOCELL NetDISK 351UNE Features


IOCELL_Networks_NetDISK_351UNE_NDAS_IOCELL_Logo.png The NETDISK Solo is a user-friendly, direct network interface storage unit, with proprietary NDAS technology (Network Direct Attached Storage). The primary advantage of this technology is that it allows direct connection to a TCP/IP-based network without the need for IP configuration. If you look at the trade-offs between storage architectures and complexity, the Storage Area Network (SAN) is at the top, Network Attached Storage is in the middle, and NDAS is at the bottom. In many cases, the bottom is a good place to be, especially when it comes to cost and complexity. Let's take a brief look at the feature set you do get, with this low-cost, lightweight technology.The Feature-rich and Integrated Applications for Business


  • Back up your laptop via the Ethernet port
  • Back up any PC on the network
  • Back up other devices connected to a PC
  • Treat it like a local drive
  • Drag and drop music, video, documents, etc...


  • Serial ATA Interface
  • No capacity limit
  • Multiple partitions
  • Any partition type


  • Up to 100Mbps data transfer
  • Plug&Play, any file format, hot-swappable


  • Direct connection to a single computer
  • Access to standalone disks
  • Access RAID 1 primary disk
  • RAID 1 data synchronizes when connected by NDAS


  • Low power
  • Disks "spin down" if not accessed
  • Power and Disk LEDs

Virtual RAID Management with RAID 1 +Spare IOCELL_Networks_NetDISK_351UNE_NDAS_expansion.png

The NetDISK NDAS offers the ability to create RAID 0 and RAID 1 volumes from individual units attached to the network. It's kind of a peer-to-peer architecture, that is actually a bit more fault tolerant than having all your drives controlled from one controller, and powered from one PSU. It also supports hot-swap for failed drives, and a "Spare" drive can be added to a RAID 1 volume for increased flexibility.

NDAS Technology Reduces Complexity

When you compare the architecture of a typical NAS server implementation to one using NDAS technology, you can readily see the reduction in complexity. I think this chart really needs one more box on the NDAS side; that's the Lean Packet Exchange (LPX) protocol, and it would go where the green TCP/IP box is on the right hand side. After all, you have to have LPX installed on the "host" PC. It's a simpler, faster protocol than TCP/IP, but you can't pretend it's not there....


NDAS Technology Provides Granular Access Rights

During setup and driver installation for each PC on the network, there is an opportunity to set write privileges for each node. You cannot set separate privileges for different user accounts on each PC, the rights are assigned to all users. Also, even if someone tries to install the driver package on one of the other PCs on the network, without the unique NetDISK ID and Write Key, they will not be able to access the NDAS storage device.



NDAS Technology Safeguards Your Storage From TCP/IP Hacking

There is an additional advantage of the Lean Packet Exchange (LPX) protocol, which is used to interface the NetDISK unit to the Router or Switch that's used as a gateway into the network. LPX is a tiny player in the network world, and very few hackers are going to even know it exists, and even fewer are going to bother spending their time trying to break into it. So far, I haven't heard any claims that it's "hardened" in any way, just that the million or so methods that are commonly used to hack TCP/IP don't work on LPX. It's not airtight security, but it does keep you safe from 99.999+% of the attacks that might come your way.


Those are the basic features of the IOCELL NetDISK 351UNE. In the next section we'll dive into the included software to show you how all these features are implemented.



# RE: IOCELL NetDISK 351UNE Network Storage DeviceMack 2011-12-01 20:38
Pretty cool device. Its good to see some creativity out there.
Thanks for the review!
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# AgreedBruce 2011-12-02 07:33
Yeah, I was sorta caught off-guard by this product. I wasn't really expecting something this unique and this good. There's so many me-too products out there, and it can be tough to spot the stand-outs.
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# RE: IOCELL NetDISK 351UNE Network Storage DeviceAthlonite 2011-12-05 23:20
Me likes I've been looking at getting a small NAS to plonk on the GB switch but I seriously wasn't interested paying 2~300 bucks for the ability.... This product is just what the disk space shortage ordered
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# Look for the bargains.....Bruce 2011-12-07 04:59
"The models with 1TB and 2T drives preinstalled are better bargains now that the Thailand flooding has driven the price of bare HDDs up through the roof."
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# Where have you been all my life.Mergatroid 2011-12-06 17:54
Wow, I sure could have used this a few months ago. I have a NAS with a single drive, not very good but serviceable for file streaming and storage. I have a dual drive NAS in RAID 1 backing up the first NAS, and backing up my system backup drive. I didn't really need a RAID1 for backing up my NAS and system backup, but it added redundancy as you mentioned. One of these network drives (or two) would have been just what I was looking for. I hope they're still around when I need more storage. I really like the transfer rate and the universal nature of the added ports (USB and eSATA). I think this is an amazing value at the price mentioned. Nice review too. Good breakdown on what the drive does and what it doesn't do.
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# It's a great alternative...Bruce 2011-12-06 20:41
It's a great alternative to some of the other solutions out there. There's no doubt that it's the most cost-effective choice for several usage scenarios, where it performs as well as devices that are 5x the cost.
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