Summary: This unit does not support RAID 5 over all 8 drive bays, but rather it supports RAID 50 - RAID 5 over 2 groups of 4 disks and RAID 0 over the 2 groups of 4 disks. This results in capacity of 6 hard disks, not 7.
Excellent RAID unit for the price if you can deal with the setup
Vincent Myles, Amazon
7 May 2014
Summary: I read the documentation thoroughly and still felt a bit uncertain about setting this up but decided to dig right in. In fairness, I would not want to have to write the doc for setting this beast up. I had a collection of identical Seagate 3TB hard drives that I'd pulled out of other devices or bought and had been saving for this RAID. First pass through, the unit would power up for 10 seconds and then shut down.
Potentially fatally flawed unless Mediasonic can come up with some good firmware
James Zachary "Mr. Music", Amazon
22 February 2014
Summary: The cabinet is nicely made and the controls are fairly intuitive and easy to understand. Installing hard drives is soooo easy. The fan noise is minimal and even adjustable. Unfortunately the USB 3 connection is finicky. I had to make BIOS adjustments on my notebook computer to get the enclosure to connect at USB 3 speeds. It doesn't seem like Mediasonic can or will upgrade the firmware. So unfortunately you might have 8 huge hard drives connecting at USB 2 speeds.
Summary: Very easy to setup. I would recommend to anyone that understands RAID environments. The manual requires the Hubble Telescope to read the small print. A disk that comes with it has a Quick Start Guide but it is for a NON-RAID device. This is my third purchase of a Mediasonic Product and find them good quality for the cost. Understand there is a cover on the back that has to be popped off so you can hold a button engaged to setup the RAID configuration you want to use.
Expensive, Cheaply, made and poorly supported product! Save your money!
H. Cates "~A PC/MAC hobbyist (Hardware/Software)~", Amazon
25 November 2013
Summary: The customer (dis)Service is only offered through email or forum, the product never stays connected and disconnects when ever it wants, Tech support says "well replace your USB 3.0 cable?", done that to the point i order some off the net and tried 2.0 none seem to keep it online. Then I started thinking maybe it is some power saving issues, turned those options off and still same thing.
Summary: I've had this running for only a few days now but I wanted to give my initial impressions. In short, everything is working smoothly with no problems whatsoever. Background: I wanted an *affordable* 8bay enclosure that I could use as additional backup security for my data. I already have in place a 4bay Firewire Drobo (4x4TB) serving as a Time Machine, off-site clones that I update bi-weekly and CrashPlan cloud backup for my most important data.
Summary: This is my second one. Please read the other review indicating requirements. This device is for people with some tech experience so things like sata port replicator should be understood as necessary. The first one is 1.5 years old and still going with no problems at all. Can't say more than: I recommend it.