G-Technology G-RAID Mini Review

External USB 3 hard drives are pretty common these days and GNC has reviewed several models in the past. However, this is the first portable RAID unit that I’ve had on my desk. On show here is the G-Technology G-RAID mini and with a pair of 2.5″ drives, the G-RAID mini offers a choice of RAID 0 or RAID 1 in a very attractive silvery metal case.  Let’s take a look.

G-RAID mini Shadow

The G-RAID mini comes in the usual blue and white G-Technology packaging and in the box is the unit itself, a power supply, a travel case, a Firewire 400-to-800 cable, a Firewire 800 cable  and a USB3 cable. The travel case isn’t anything to write home about but it’s good to have the full range of cables. The G-RAID mini weighs in at just under a 1 kg so it’s pretty hefty but this an all metal case – there’s no cheap plastic here. It’s also surprisingly small at only 149 x 83 x 38 mm, as you’ll see from the ruler below. Overall, it’s a solid, well-built unit.

G-RAID mini Front

Looking over the unit, round the back are a USB 3 port, two Firewire 800 ports and the DC in jack. On the underside, there’s a cooling fan and on the front, there’s white LED in the G-Technology logo, which flashes with disk access. There’s a hidden “drive failure” LED which goes red if a drive dies, but you’ll see the LED flicker when the mini powers up. The G-RAID mini needs supplementary power from the PSU when connected up via USB, but it’s not need when the Firewire ports are used.

G-RAID mini Rear

RAID ConfigThe G-RAID mini can be configured either as RAID 0 with both drives contributing to one large logical volume or else as RAID 1 with the drives mirroring each other. There’s a simple configuration tool that let’s you chose which it’s going to be. Changing the RAID level completely erases the drive so it’s best to decide early what configuration you want.

The utility is available for Windows and Mac, but once the G-RAID mini is setup, it works as any device that understands USB storage, e.g. Linux boxes or Chromebooks.

So that’s the basics out the way. What’s the performance like? I ran through my usual selection of tests with hdparm, dd and bonnie++ in both RAID 0 and RAID 1 configurations. Remember, while these tests are indicative of performance, they are for my setup only.

RAID 0 USB 3 USB 2 FW 400
hdparm (read)  155 MB/s  33 MB/s 39 MB/s
dd (write)  178 MB/s  37 MB/s 22 MB/s
bonnie++ (write)  173 MB/s  37 MB/s 21 MB/s
bonnie++ (read)  171 MB/s  49 MB/s 55 MB/s


RAID 1 USB 3 USB 2 FW 400
hdparm (read) 126 MB/s 32 MB/s 39 MB/s
dd (write) 117 MB/s 38 MB/s 21 MB/s
bonnie++ (write) 114 MB/s 37 MB/s 21 MB/s
bonnie++ (read) 154 MB/s 51 MB/s 53 MB/s

In either configuration, the G-RAID mini is fast, especially when connected up via USB 3 in RAID 0. Looking at the data, it’s clear that at USB2 and Firewire 400 speeds, there’s no performance difference between RAID 0 and RAID 1. Simplistically the data connection rate is the limiting factor.

However, with USB3 bonnie shows that write speeds fall by a third in the RAID 1 configuration, with reading affected by only a 10% fall. This is not unexpected as extra work is required to write the data in a mirror setup. Regardless, it’s still 3 times faster than USB2.

In summary, the G-RAID mini is an ideal companion for power users with the latest ultrabooks or MacBook Pros where performance is matched to good looks. It’s not cheap with an on-line price of around £275 for the 2 TB version but the protection against single drive failure will be important to those with high profile or travelling roles where having the data available is crucial. The G-RAID mini is an attractive and well-built unit with great performance and it will appeal to both those who need either high-performance or protection against drive failure.

G-Technology G-Drive Mobile Review

On review today is the G-Technology G-Drive Mobile, a 1 TB mobile external hard drive. Aimed squarely at the Apple MacBook crowd, the brushed aluminium finish and white LED compliments the host machine, and the combination of both USB3 and FireWire 800 show its Mac heritage. Of course the drive can be formatted for Windows or Linux use but the G-Drive is pre-formatted for HFS+ and is TimeMachine-compatible. As expected, the G-Drive is bus powered so there’s no power adaptor.

G-Drive Mobile


G-Drive Mobile Ports

The G-Drive Mobile has a couple of touches that set it apart from the other mobile drive offerings. To start with, it comes with all the cables that might be needed, so in the box there’s a USB3 cable, a FireWire 800 cable and a FireWire 400 to 800 cable. There’s no getting the box home only to find the cable need for your setup is missing.

G Drive Mobile Cables

Second, the packaging presents the G-Drive to best effect and the “Getting Started” instructions are printed on the inside  lid of the box. Again, it comes back to appealing to the Apple crowd who expect good design.

G-Drive Package

But enough of how it looks. How does it go? Pretty well actually. Connected up to USB 3, the G-Drive Mobile recorded the following data rates:

– hdparm gave 107 MB/s for buffered disk reads.
– dd gave write speeds around 105 MB/s.
- bonnie++ gave 104 MB/s for writes and 141 MB/s for reads.

I’m fairly sure that those figures make G-Drive Mobile the fastest USB3 unit tested, beating the previous holder by a considerable margin. Under FireWire 400, the figures were obviously slower, but are provided here for comparison.

– hdparm gave 36 MB/s for buffered disk reads.
– dd gave write speeds around 22 MB/s.
– bonnie++ gave 22 MB/s for writes and 55 MB/s for reads.

Price-wise, the model here costs £129.95 but if you want USB3 only, there’s a much sleeker and cheaper version at £109.95 in the Apple store. However, if you need FireWire with USB3, the model viewed above is hard to beat, giving historical compatibility with older gear while also offering fast data transfers on newer kit.

Thanks to G-Technology for providing the G-Drive Mobile to review.

Akitio Neutrino U3+ USB 3.0 Hard Drive Enclosure Review

Akitio has come out with the Neutrino U3+ a stylish 2.5 Sata HDD enclosure that supports  bus powered USB 3.0 or Firewire 800. The all Aluminum casing with heat sink guarantees your drive will not overheat. The best part is multiple drives can be daisy chained together using the firewire ports. Priced at $79.00 this is one of the lowest priced USB 3.0 Hard Drive Enclosures on the market.

The drive can fall back to USB 2.0 if needed. The package includes a USB 3.0 cable, Firewire 800 cable, enclosure minus hard drive, power adapter for when you are unable to take advantage of Bus Power. The enclosure itself is brushed aluminum to match mac body design.

This is the third product from Akitio that I have reviewed, and I am always surprised by the quality of the product.