G-Technology G-RAID mini 2TB review

Adopt a RAID array without it taking up too much desk space

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  • Good sequential reads/writes
  • Small size fits under an iMac


  • Low random read/write speeds
  • Can't quickly replace disks

This compact drive from G-Technology contains two 2.5-inch disks. They're configured as a striped RAID array for speed, and appear as a single 2TB volume in the Finder.

Its USB3 port offers the best speed, but FireWire ports are also present. Over USB3, the drive achieved respectable averages of 216.2MB/sec when reading data sequentially, and 170.4MB/sec when writing it.

These figures are dragged down by speeds under 100MB/sec when handling small files, however. Random read and write speeds might be encountered after long use, when free space becomes fragmented. Here, though, the drive is lacklustre. It averaged 22.9MB/sec when reading data, and 35.6MB/sec when writing.

The drive can be reconfigured as a mirrored 1TB array as insurance in case one disk fails, but the disks can't easily be swapped out. The application for this requires Java to be installed.

G-Technology's website confused us with an instruction that one of two versions of the app is for serial numbers ending with two letters. Ours didn't, yet that was the version we needed.

FireWire 800 limits speeds but forgoes the need for the mains plug. Beware, this doesn't work through Apple's Thunderbolt to FireWire adaptor - an issue with the accessory - so a mains supply is required in portable use with a MacBook Air or a Retina MacBook Pro.

Tech Specs

Product TypeDAS Array
Number of Total Expansion Bays2
Brand NameG-Technology
RAID Levels1
Host InterfaceeSATA, FireWire/i.LINK 800, USB 2.0
Total Hard Drive Capacity Supported1 TB
ManufacturerHGST, A Western Digital Company
Product Model0G01653
Product NameG-RAID mini 0G01653 DAS Hard Drive Array
Product LineG-RAID mini
Manufacturer Part Number0G01653
Manufacturer Website Addresshttp://www.hgst.com
Marketing Information

The new G-RAID mini now features both RAID 0 and fail-safe RAID 1 operation, a high-speed quad interface and storage capacities up to 1TB. It is the ideal portable storage solution for safe-guarding content downloaded from professional tapeless video cameras. Production houses and creative studios will appreciate its small compact size and tough, all-aluminum enclosure, which make it perfect for capturing and editing on the go or while working on location. G-RAID mini is capable of delivering an unprecedented 120+ MB/second transfer rate when connected via eSATA in RAID 0 mode. G-RAID mini is FireWire bus-powered even when connected via eSATA.