Glyph GT 103 User manual

©Glyph Technologies
Quick Guide
GT 103™
Single-space, Three-bay FireWire hot-swap enclosure for
GT Key™ cartridges
Quick Guide
610014-1.03
Dec 7, 2006

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GT 103
Quick Guide #610014-1.03 Proprietary Notice and Disclaimer
© Glyph Technologies – www.glyphtech.com 1
Proprietary Notice and Disclaimer
Unless noted otherwise, this document and the information herein
disclosed are proprietary to Glyph Technologies, 227 Cherry St.
Ithaca, NY 14850 (“GLYPH”). Any person or entity to whom this
document is furnished or having possession thereof, by acceptance,
assumes custody thereof and agrees that the document is given in
confidence and will not be copied or reproduced in whole or in part,
nor used or revealed to any person in any manner except to meet the
purposes for which it was delivered. Additional rights and obligations
regarding this document and its contents may be defined by a separate
written agreement with GLYPH, and if so, such separate written
agreement shall be controlling.
The information in this document is subject to change without notice,
and should not be construed as a commitment by GLYPH. Although
GLYPH will make every effort to inform users of substantive errors,
GLYPH disclaims all liability for any loss or damage resulting from the
use of this manual or any software described herein, including without
limitation contingent, special, or incidental liability.
© 2002-2004 Glyph Technologies. All rights reserved. Specifications
are subject to change without notice. Glyph and the Glyph logo are
registered trademarks of Glyph Technologies. All other brands and
product names mentioned are trademarks of their respective holders.
ABOUT THIS DOCUMENT
This document is a brief introduction to Glyph’s GT 103, a
single-space, three-bay FireWire hot-swap enclosure for GT Key™
cartridges.

GT 103
Proprietary Notice and Disclaimer QuickGuide #610014-1.03
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DOCUMENT CONVENTIONS
Notes
Notes alert you to important information. They are indented and
preceded by the word Note in bold type.
Cautions
Cautions alert the user to actions or situations that can result in
damage to users or data. Cautions are accompanied by a triangle icon,
as in the example below.
CAUTION:
If the container is damaged, file a report with the carrier or dealer
immediately.

GT 103
Quick Guide #610014-1.03 Proprietary Notice and Disclaimer
© Glyph Technologies – www.glyphtech.com 3
CONTACTING GLYPH
Please use the following contact information to contact Glyph and its
distributors.
Glyph USA offers phone support Monday through Friday, 9:00 am to
6:00 pm Eastern Time.
Note: DO NOT ship any return goods to the mailing addresses below
unless you have a valid RMA number. All goods will be refused
delivery unless a valid RMA number is displayed on the outside of the
package.
UNITED STATES OF AMERICA
Europe
Mailing Address Phone/Fax Email and Web Site
Glyph Technologies
227 Cherry St.
Ithaca, NY 14850
USA
Phone:
[phone]
Fax:
[phone]
General information:
[e-mail]
Sales enquiries:
[e-mail]
Technical support:
[e-mail]
www.glyphtech.com
Mailing Address Phone/Fax Email and Web Site
Steyler Str. 121
D - 41334 Nettetal
Germany
Phone: [phone]
/ 12 76 23
Fax : [phone] /
12 83 12
Sales enquires:
[e-mail]
Technical support:
[e-mail]
www.glyphtech.com

GT 103
Contents of This Guide QuickGuide #610014-1.03
4www.glyphtech.com – © Glyph Technologies
Contents of This Guide
Glyph’s GT Series, p. 4
About the GT 103, p. 7
Unpacking Your GT 103, p. 12
Installing the Hardware, p. 14
Preparing Your Drive for Use: Mac OS 9 Users, p. 15
Preparing Your Drive for Use: Mac OS X Users, p. 17
Preparing Your Drive for Use: Windows Users, p. 17
Care and Maintenance of the GT 103, p. 21
Troubleshooting, p. 24
GT 103 Specifications, p. 25
Audio Storage Guide, p. 26
Glyph’s GT Series
The GT Series is a cross-functional line of FireWire-based storage
subsystems designed for mobility and easy expansion. GT Series
members include:
GT Key - A hot-swappable FireWire Drive
GT 050 - A Fixed-Mount FireWire Tabletop Drive
GT 051 - A Hot-Swappable FireWire Tabletop Drive
GT 103 - A One-space Thee-bay enclosure
GT 308 - A Three-space Eight-bay enclosure

GT 103
Quick Guide #610014-1.03 Glyph’s GT Series
© Glyph Technologies – www.glyphtech.com 5
The GT Series incorporates Glyph’s own advanced FireWire
technology called Integrity™. Inspired by the limitations of existing
hybrid ATA-to-FireWire hot-swap products, Glyph engineers resolved
the data integrity problems that arise from breaking at the ATA
interface by incorporating unique enhancements to existing FireWire
standards. As a result, the GT Key drive cartridge contains the
ATA-to-FireWire bridging technology in the cartridge itself. When
removing a hard drive from the receiver, the drive and its bridge
remain together to support hard drive hot-swapping in the proper
way—using circuits and protocols that are intended for hot-swap
applications. The GT Series sets new standards as Glyph’s Integrity™
technology surpasses today’s other hot-swappable storage.
Firewire is an implementation of the IEEE 1394 serial bus standard. It
not only supports automatic configuration ("plug and play") and
hot-swapping of devices, it’s fast, and best of all it’s reliable for
audio/video as well as for computer peripherals.
FireWire supports peripherals in a tree-like structure, as opposed to
SCSI's linear structure. It allows peer-to-peer device communication—
e.g. between a scanner and a printer—to take place, without using
system memory or the CPU.
With FireWire you don’t have to worry about IDs or device
termination; you can hook up to 63 devices to the same bus, with cable
lengths of up to 4.5 meters (14 feet) including internal cabling, allowed
between devices.
Its cable is not only more convenient than SCSI’s but can also carry
power. This allows low-consumption devices to operate without a
separate power cord, by using power supplied by other devices on the
bus.

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Noise Control
Elimination of Signal noise
Components in GT Series enclosures are of the highest quality
possible. These include:
• Heavy-gauge internal power cabling to carry current with minimal loss
• Bridge circuit boards designed to provide extra functions and top
performance
• High-quality data cables to maintain signal integrity at high data
rates
We use Teflon ribbon cables in our GT Series FireWire solutions
because Teflon is the best insulator for minimizing cross-talk and
maintaining high-frequency signal integrity. Good insulation
maintains signal quality. Maintaining signal quality ensures maximum
data transfer rates.
Elimination of Acoustic Noise
GT Series enclosures and the GT Key incorporate QuietMetal™ to
support quiet recording by virtually eliminating noise caused by the
vibrations of hard drives and fans.
QuietMetal is a constrained-layer composite—a laminate formed of two
layers of metal sandwiching a viscoelastic polymer core. Vibration felt
by the metal layers is dampened by the softer center layer: the
deformation of the core facilitates the absorption of vibrational
energy. The combination of QuietMetal and secure fastening with
sturdy steel mounting hardware helps to ensure a still, quiet
environment for your recording sessions.

GT 103
Quick Guide #610014-1.03 About the GT 103
© Glyph Technologies – www.glyphtech.com 7
Power
Glyph uses efficient, high-quality power supplies, selected specifically
for the demands of production environments.
Our power supplies have a large amount of headroom, so your Glyph
system will function, for brief periods of time, with AC lines
significantly below specified limits.
Glyph FireWire devices, even when they’re not turned on, will pass
signal and bus power through to downstream FireWire devices.
Glyph’s FireWire solutions are 100% compliant with FireWire
specifications for reliable operation using FireWire’s repeater
functionality.
About the GT 103
The GT 103 is a single-space three-bay FireWire enclosure. It can be
configured with any combination of hot-swappable FireWire drive
capacities, and makes it easy to take drives between multiple
computers. The GT 103 accepts up to three GT Key hot-swap drive
cartridges.

GT 103
About the GT 103 QuickGuide #610014-1.03
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GT Key Hot-Swap Drive Cartridges
Having designed and engineered our own ATA-to-FireWire bridge, we
decided to enclose the bridge and the drive in a single unit. The result
is the GT Key FireWire cartridge.
This integrated exchange system offers true hard drive hot-swap
technology, ensuring data integrity and consistency: removing a
hot-swap drive from a Glyph FireWire system interrupts the data signal
at the FireWire bus, not on the ATA bus as with other hot-swap
systems.

GT 103
Quick Guide #610014-1.03 About the GT 103
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CAUTION:
When transporting an individual cartridge, place it in the anti-static
bag that it came in. This will help ensure the safety of the sensitive
electronics exposed at the back of the cartridge.

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Details
GT Keys lock conveniently into the GT 103 chassis by means of a
flip-out handle at the front of the drive. The cartridge loads on its side.
The illustration below shows three GT Keys in a GT 103 chassis.
Power switch with LED: AC power to chassis
LED: power to cartridge
Power supply
Below cover:
Drive latch flips out
for drive removal
Glyph ATA-FW bridge
enclosure
QuietMetal
ATA hard disk drive
LED: drive activity
Below cover:
Power supply
Front Panel FireWire

GT 103
Quick Guide #610014-1.03 About the GT 103
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Indicator Light on Chassis
• The power switch LED glows green to indicate that AC power is
applied: the GT 103 is plugged in and switched on.
GT Key Indicator Lights
• The LED labeled “Power” glows green to indicate that power is
applied to the cartridge.
• The LED labeled “Activity” glows yellow to indicate drive activity.
Features
• QuietMetal noise-damping construction
• AC power input filter
• Efficient power supplies
• Durable 1U rack enclosure
• Single quiet ventilator fan
• Indicator lights to monitor drive activity, and to indicate power
supplied to GT 103 and GT Keys
• Front panel FireWire port
Requirements
Macintosh Computer
• Computer with FireWire port(s) or FireWire host bus adapter
• MacOS 8.5 or greater, including Mac OS X
• (Mac OS 9)Version 2.7 or later of Apple’s FireWire Enabler and
FireWire Support Extensions, enabled. In the case of G4
computers, version 2.8.1 or later of the Apple FireWire Enabler.
Windows Computer
• Computer with FireWire port(s) or FireWire host bus adapter

GT 103
Unpacking Your GT 103 QuickGuide #610014-1.03
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• Windows 98 SE, 2000, ME or XP
Unpacking Your GT 103
Your Glyph GT 103 and accessories are packaged in a sturdy shipping
container. Please inspect the container for evidence of shipping
damage and mishandling.
CAUTION:
If the container is damaged, file a report with the carrier or dealer
immediately. Do not attempt to unpack and operate your GT 103
until the carrier or dealer confirms the damage.
If the container is in good condition, proceed with unpacking the GT
103. Verify that all of the items described in the next section are
present and in good condition.
Inspection
CAUTION:
If any of the items you expect to find in your container is missing or
damaged, contact the dealer before proceeding any further.
In any case, do keep the shipping container and all packing materials
in a safe place.
The GT 103 package includes:
•GT103Enclosure
• GT Key FireWire drive cartridges, if ordered
• FireWire cable
•Powercable

GT 103
Quick Guide #610014-1.03 Unpacking Your GT 103
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•rackscrews
• Documentation CD with warranty card and this guide

GT 103
Installing the Hardware QuickGuide #610014-1.03
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Parts Identification
To familiarize yourself with the GT 103, take a moment to study the
image below.
Installing the Hardware
1. Position the GT 103.
Place the unit on a flat, level surface, or install the unit into a rack
with the four supplied rack screws.
Power to cartridge Drive latch
Drive activity
Power switch with LED: AC Power to chassis
Front Panel FireWire Port

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CAUTION:
Speakers are magnetic devices; they can harm your data if they’re
too close to your hard drives or tape cartridges.
2. Connect the power cable (power off):
Make sure that the power is off on all of your computer equipment
and the GT 103.
Connect the power cable to the back of the GT 103. Plug the
three-prong plug into an appropriate power receptacle, preferably
with surge and spike protection.
3. Connect the FireWire cable.
Plug one end of the FireWire cable into your computer’s FireWire
port, and the other into the back of the GT 103. The two ports
connect internally to all drives in the GT 103, so it doesn’t matter
which one you use.
4. Insert any GT Key cartridges into the unit.
Pull the handle on the cartridge out, then slide the cartridge into
the slot on the GT 103 and press the handle in well to lock the
cartridge firmly into place.
5. Power up the GT 103.
6. Power up your computer.
If you are using a Macintosh computer the drive should mount
automatically on your desktop.
Preparing Your Drive for Use: Mac OS 9 Users
Since your hard disk drive comes pre-formatted for Macintosh you
don’t need to format it on installation. If you should need to
re-initialize the disk, you can use the Erase Disk command in the Mac

GT 103
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operating system. This command will erase all the data on a volume
and create a new file system. Erase disk will not allow you to
re-partition a FireWire drive or create a different volume structure
than what was previously there.
If you need more functionality than what is supplied by Mac OS 9, get
yourself a formatting and partitioning utility. Glyph recommends
FWB’s Hard Disk Toolkit or Charismac’s Anubis utility. These will
allow you to re-partition a disk and create multiple volumes, as well as
format those volumes. Directions for using these utilities will be
included with them.
Mac OS X users should use Disk Utility (supplied with the Mac OS X
operating system) to format and partition drives.
Re-initializing your drive using Erase Disk (Mac OS 9
Users)
Your new drive should have automatically mounted on the desktop as
a Glyph volume. We advise that you give it a recognizable name or
number on your desktop.
Your drive is a single volume by default. To re-initialize your drive, use
the following procedure.
CAUTION:
This procedure will destroy any data currently on the drive. Before
formatting a drive, save any important data it contains.
1. Select the volume by clicking on it once in the Finder
2. Go to the Special menu and select Erase Disk...
The Erase Disk dialog box opens to verify your decision to erase
the disk.
3. In the Name field, enter the new name for the disk or leave the
name as it is.

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4. In the Format drop-down menu, choose an Extended volume.
All GT Key drives in GT 103 units are formatted at the factory as
Extended volumes.
5. Click Erase.
The disk is now erased and should mount on your desktop with
the new volume information.
Preparing Your Drive for Use: Mac OS X Users
Since your Glyph hard disk drive comes pre-formatted for Macintosh
you don’t need to format it on installation. If your computer is
running Mac OS X and you decide to reformat or partition your drive,
use Disk Utility (supplied with the Mac OS X operating system).
Preparing Your Drive for Use: Windows Users
Because Glyph hard disk drives are formatted for Macintosh, Windows
users must reformat their drives in order to use them.
Windows 98 SE
1. From your computer’s task bar, go to Start > Programs > MS-DOS
Prompt.
2. At the prompt, type fdisk and press Enter.
You’ll see a long message about disk support.
3. Enter Y (type Yand press Enter).
You are invited to make a choice.

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4. Enter 5to change the current fixed disk drive.
MS-DOS displays the connected disk drives.
5. Enter the number of the disk that has no corresponding drive
letter (in the example below, that’s Drive 2).
You are invited to make a choice (same list as in Step 3).
6. Enter 1to create a primary DOS partition.
Your computer verifies the drive’s integrity, after which you are
asked to choose whether you want to use all the space available.