GT 062™ 3TB Quickstart Addendum
NOTE: This document is an addendum to the GT 062 manual,
and is intended for the GT 062 3TB model only.
610028 GT 062 3TB Quickstart Addendum.pdf
June 17, 2009
The GT 062 3TB enclosure contains two hard disk drives, and can be congured to function as one single
drive or two individual drives. Through the use of the Glyph Manager software utility, it supports two drive
modes: JBOD, or RAID 1 (mirroring). Unlike other models of the GT 062, the 3TB model does not support
RAID 0 or Spanning modes. These instructions explain how to set up your drive in one of the two sup-
ported drive modes, and also a workaround to enable RAID 0 or Spanning using the tools that are provided
with Mac OS X, Windows XP, and Windows Vista operating systems. NOTE: Windows XP Home and Vista Home
do not support software RAID 0 and Spanning.
Below is a description of JBOD and RAID 1. Each has its own advantages, depending upon the application.
JBOD mode is the simplest of all drive modes, you can think of it as simply two separate disks inside
the GT 062 3TB. In JBOD mode (standard storage lingo for Just a Bunch of Disks), the two internal disks
appear and function as two independent drives. Your computer will see the GT 06 3TB as two 1500GB
drives. It is a secure drive mode because the failure of one drive will not aect the health of the other.
For this reason, JBOD mode is very well suited for audio production. The GT 062 3TB ships in JBOD
RAID 1 (mirroring) oers data redundancy and real-time backup by writing the same data to the
two hard drives at the same time. Should a drive failure happen, data is still available on the remain-
ing drive. In RAID 1 mode, the two drives are seen by the computer as one volume, but with half the
capacity. For example, your GT 062 3TB will be seen as a single 1500GB drive. Reading and writing oc-
curs on both drives simultaneously so that each of the drives contains exactly the same data, mirror-
ing each other. If either of the drives should fail the other is there to seamlessly continue to provide