Other than the noise mentioned above, the G-Speed worked very well throughout testing and generated almost no vibration at all, which is quite impressive for a device of this size. Promise Pegasus R6 (RAID 5) 192.53 LaCie 5Big Thunderbolt (RAID 0) 183.76 Promise Pegasus2 (RAID 5) 165.92 G-Tech G-Studio R (RAID 5) 154.83 LaCie Little Big Disk SSD 141.69 LaCie Rugged Thunderbolt 120.64 LaCie 2Big Thunderbolt (RAID 0) 111.36 Promise Pegasus R4 (RAID 5) 100.5 WD My Book Thunderbolt Duo (RAID 0) 76.97 Elgato Thunderbolt SSD 71.84 LaCie 2Big Thunderbolt (RAID 1) 60.1 WD VelociRapter 600GB 58.05 LaCie 5Big Thunderbolt (RAID 1) 55.945 WD My Book Thunderbolt Duo (RAID 1) 39.66 Notes: Measured in megabytes per second That's the fastest I've seen for a hard drive-based storage device on the market. In a read test, however, the G-Speed did much better, with 456MBps, almost 100MBps faster than the Pegasus. While this was very fast - the second fastest I've seen - it was significantly slower than the 360MBps of the Pegasus2. In write tests it registered a sustained real-world copy speed of 260MB. The G-Speed was tested only in RAID 5, which is the recommended RAID setup for a device of its type. The test machine supports Thunderbolt 2 and is also equipped with a super fast PCIe-based solid-state drive (SSD).
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I tested the G-Speed Studio R with a MacBook Pro late-2013 edition. It's not noisy enough to be a problem in a big office but it can be distracting if you're working in a quiet room. The large ventilation fan emits a constant low hum and the hard drives on the inside make a lot of metallic sounds during boot time or when there's a large amount of data being transferred. There's a button on its back that supposedly turns the sound off, but it didn't work for me. It emits a beep each time it turns on or off, or goes in or out of sleep mode, and the sound was loud enough to startle me the first few times. This is a major improvement over the Pegasus2. I also noted that the G-Speed never appeared to dismount from the host computer. This means when you come back from a break, there's no need to wait before resuming your work.
In my testing it woke up from sleep mode almost instantaneously (in contrast, the Pegasus2 took up to 20 seconds). Like the Pegasus2, the G-Speed shares power status with the host computer. While this is convenient, it's also not secure, since there's no option to lock the drive bay or the drives themselves into their slots. All I needed to do was open the top lid (which pops up when you press on it), and I could easily pull the drives out. It's very easy to replace the hard drives themselves - in fact, it was a little too easy in my trial. When you buy the G-Speed, it'll be populated with four enterprise-grade Hitachi hard drives of 3TB, 4TB or 6TB, but you can also use your own drives. There are four hard-drive slots and each can host a standard SATA 3.5-inch (desktop) internal hard drive. This top side also opens up to reveal the interior hard drives. The device is quite light, however, thanks to its plastic body, although the top portion is made of metal.
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It now mimics the all-black tabletop cylinder design of the new Mac Pro, while being significantly larger. The G-Speed Studio has a completely new design compared to previous storage devices from G-Tech, such as the G-RAID with Thunderbolt. The G-Tech G-Speed Studio R Thunderbolt 2 hosts four internal hard drives that can be set up in a few RAID options.
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