Promise Pegasus R6 User manual

PEGASUS
R6,R4
ProductManual
Version 1.0

Pegasus R6, R4 Product Manual
ii
Copyright
© 2011 PROMISE Technology, Inc. All Rights Reserved. PROMISE, the
PROMISE logo, VTrak, Pegasus, SmartStor, SuperTrak, FastTrak, VessRAID,
Vess, PerfectPATH, PerfectRAID, SATA150, ULTRA133, VTrak S3000,
BackTrak, HyperCache, HyperCache-R, HyperCache-W, DeltaScan and
GreenRAID are registered or pending trademarks of PROMISE Technology, Inc.
in the U.S. and other countries. All other trademarks are the property of their
respective owners. Information regarding products, services and offerings may
be superseded by subsequent documents and are subject to change without
notice. For the latest information and specifications regarding PROMISE
Technology, Inc. and any of its offerings or services, please contact your local
PROMISE office or the corporate headquarters. Visit www.PROMISE.com for
more information on PROMISE products.
Important data protection information
You should back up all data before installing any drive controller or storage
peripheral. PROMISE Technology is not responsible for any loss of data resulting
from the use, disuse or misuse of this or any other PROMISE Technology
product.
Notice
Although PROMISE Technology has attempted to ensure the accuracy of the
content of this document; it is possible that this document may contain technical
inaccuracies, typographical, or other errors. PROMISE Technology assumes no
liability for any error in this publication, and for damages, whether direct, indirect,
incidental, consequential or otherwise, that may result from such error, including,
but not limited to loss of data or profits.
PROMISE Technology provides this publication “as is” without warranty of any
kind, either express or implied, including, but not limited to implied warranties of
merchantability or fitness for a particular purpose. The published information in
the manual is subject to change without notice. PROMISE Technology reserves
the right to make changes in the product design, layout, and driver revisions
without notification to its users. This version of this document supersedes all
previous versions.
Recommendations
In this Product Manual, the appearance of products made by other companies,
including but not limited to software, servers, and disk drives, is for the purpose of
illustration and explanation only. PROMISE Technology does not recommend,
endorse, prefer, or support any product made by another manufacturer.

iii
Contents
Chapter 1: Introduction to Pegasus . . . . . . . . . . . . . . . . . . . . . . . . . . .1
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Protocol Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Key Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Client OS Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Utility OS Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Chapter 2: Installation and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Unpacking the Pegasus Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Connecting to your Mac Computer . . . . . . . . . . . . . . . . . . . . . . . . . .7
Daisy-Chaining Multiple Pegasus Units . . . . . . . . . . . . . . . . . . .8
Connecting the Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Shutting down the Pegasus . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
OS Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
MacBook Pro/iMac Software Update . . . . . . . . . . . . . . . . . . .10
Driver Installation: Macintosh . . . . . . . . . . . . . . . . . . . . . . . . . .11
Software Installation: Macintosh . . . . . . . . . . . . . . . . . . . . . . . .12
Setting up the Pegasus Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Opening the Promise Utility . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Unlocking the UI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Displaying Multiple Pegasus Units . . . . . . . . . . . . . . . . . . . . . .14
Creating a Disk Array and Logical Drive . . . . . . . . . . . . . . . . . .15
Formatting your Logical Drive . . . . . . . . . . . . . . . . . . . . . . . . . .16
Chapter 3: Management with the Promise Utility . . . . . . . . . . . . . . .17
Accessing the Promise Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Unlocking the UI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Locking the UI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Perusing the Promise Utility Interface . . . . . . . . . . . . . . . . . . . . . . .19
Dropdown Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Toolbar Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Displaying Multiple Pegasus Units . . . . . . . . . . . . . . . . . . . . . .20

Pegasus R6, R4 Product Manual
iv
Chapter 3: Management with the Promise Utility, cont.
Managing Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Viewing Subsystem Information . . . . . . . . . . . . . . . . . . . . . . . .21
Making Subsystem Settings . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Clearing Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Restoring Factory Default Settings . . . . . . . . . . . . . . . . . . . . . .22
Managing the RAID Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Viewing Controller Information . . . . . . . . . . . . . . . . . . . . . . . . .23
Viewing Controller Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Making Controller Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Updating Firmware on the Pegasus Unit . . . . . . . . . . . . . . . . .25
Making Buzzer Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Testing the Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Silencing the Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Managing Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Viewing the Subsystem Information . . . . . . . . . . . . . . . . . . . . .27
Viewing Temperature Sensor Information . . . . . . . . . . . . . . . .27
Locating a Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Managing Background Activities . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Viewing Current Background Activities . . . . . . . . . . . . . . . . . . .29
Viewing Scheduled Background Activities . . . . . . . . . . . . . . . .30
Adding a Scheduled Background Activity . . . . . . . . . . . . . . . . .30
Changing a Background Activity Schedule . . . . . . . . . . . . . . . .31
Enabling or Disabling a Scheduled Background Activity . . . . .32
Deleting a Scheduled Background Activity . . . . . . . . . . . . . . . .32
Media Patrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Redundancy Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Rebuild . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
PDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Managing Physical Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Viewing a List of Physical Drives . . . . . . . . . . . . . . . . . . . . . . .38
Viewing Physical Drive Information . . . . . . . . . . . . . . . . . . . . . .38
Viewing Physical Drive Statistics . . . . . . . . . . . . . . . . . . . . . . .40
Viewing Physical Drive SMART Log Information . . . . . . . . . . .40
Locating a Physical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Making Global Physical Drive Settings . . . . . . . . . . . . . . . . . . .41
Making Individual Physical Drive Settings . . . . . . . . . . . . . . . .42

Chapter 1: Introduction
v
Chapter 3: Management with the Promise Utility, cont.
Managing Physical Drives, cont.
Making Physical Drive SMART Log Settings . . . . . . . . . . . . . .42
Clearing a Stale or a PFA Condition . . . . . . . . . . . . . . . . . . . . .43
Forcing a Physical Drive Offline . . . . . . . . . . . . . . . . . . . . . . . .43
Running Media Patrol on your Physical Drives . . . . . . . . . . . . .44
Managing Disk Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Viewing a List of Disk Arrays . . . . . . . . . . . . . . . . . . . . . . . . . .45
Viewing Disk Array Information . . . . . . . . . . . . . . . . . . . . . . . . .45
Creating a Disk Array Manually . . . . . . . . . . . . . . . . . . . . . . . .46
Creating a Disk Array and Logical Drive with the Wizard . . . . .47
Making Disk Array Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Locating a Disk Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Deleting a Disk Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Preparing a Disk Array for Transport . . . . . . . . . . . . . . . . . . . .54
Rebuilding a Disk Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Managing Logical Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Viewing a List of Logical Drives . . . . . . . . . . . . . . . . . . . . . . . .57
Viewing Logical Drive Information . . . . . . . . . . . . . . . . . . . . . . .58
Viewing Logical Drive Statistics . . . . . . . . . . . . . . . . . . . . . . . .59
Making Logical Drive Settings . . . . . . . . . . . . . . . . . . . . . . . . . .59
Viewing Logical Drive Check Tables . . . . . . . . . . . . . . . . . . . . .60
Creating a Logical Drive Manually . . . . . . . . . . . . . . . . . . . . . .61
Formatting your Logical Drives . . . . . . . . . . . . . . . . . . . . . . . . .62
Locating a Logical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Deleting a Logical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Initializing a Logical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Redundancy Check on a Logical Drive . . . . . . . . . . . . . . . . . . .64
Migrating a Logical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Running PDM on a Logical Drive . . . . . . . . . . . . . . . . . . . . . . .66
Managing Spare Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Viewing a List of Spare Drives . . . . . . . . . . . . . . . . . . . . . . . . .68
Viewing Spare Drive Information . . . . . . . . . . . . . . . . . . . . . . .68
Creating a Spare Drive Manually . . . . . . . . . . . . . . . . . . . . . . .69
Making Spare Drive Settings . . . . . . . . . . . . . . . . . . . . . . . . . .70
Running Spare Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Deleting a Spare Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Running a Transition on a Spare Drive . . . . . . . . . . . . . . . . . . .71

Pegasus R6, R4 Product Manual
vi
Chapter 4: Technology Background . . . . . . . . . . . . . . . . . . . . . . . . .73
Disk Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Media Patrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
PDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Logical Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
RAID Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
RAID Level Migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Stripe Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Sector Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Formatting Logical Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Promise Utility with default settings . . . . . . . . . . . . . . . . . . . . .90
Promise Utility with custom settings . . . . . . . . . . . . . . . . . . . . .90
Disk Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
Spare Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
RAID Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Cache Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Capacity Coercion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Chapter 5: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Responding to an Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . .101
Checking LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Drive Carrier LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Promise Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Viewing the Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Viewing Runtime Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Viewing NVRAM Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Event Severity Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . .105
Physical Drive Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Diagnosis using the Promise Utility . . . . . . . . . . . . . . . . . . . . .106
Locating a Physical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Replacing a Physical Drive . . . . . . . . . . . . . . . . . . . . . . . . . . .107
Physical Drive Warning Message . . . . . . . . . . . . . . . . . . . . . .109

Chapter 1: Introduction
vii
Chapter 5: Troubleshooting, cont.
Disk Array and Logical Drive Problems . . . . . . . . . . . . . . . . . . . . .110
Disk Array Degraded/Logical Drive Critical . . . . . . . . . . . . . .110
Disk Array Offline/Logical Drive Offline . . . . . . . . . . . . . . . . .111
Repairing an Offline Disk Array or Logical Drive . . . . . . . . . . .111
Rebuilding a Disk Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Incomplete Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112
Unreadable Disk Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
Subsystem Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Diagnosing a Subsystem Problem . . . . . . . . . . . . . . . . . . . . .115
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Connection Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Daisy-Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
Chapter 6: Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Contacting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
Returning Product For Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Appendix A: Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Updating the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Updating Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Updating the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
Appendix B: Important Information . . . . . . . . . . . . . . . . . . . . . . . . .135
GNU General Public License . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137

Pegasus R6, R4 Product Manual
viii

1
Chapter 1: Introduction to Pegasus
This chapter covers the following topics:
• About this manual (below)
• Architecture (page 2)
• Protocol Support (page 2)
• Key Benefits (page 2)
• Specifications (page 3)
• Client OS Support (page 4)
• Utility OS Support (page 4)
• Certifications (page 4)
PROMISE Technology’s Pegasus R6 and R4 are direct attached storage (DAS)
solutions for external storage targeted for small and medium business (SMB)
users, small office/home office (SOHO) users, and AV professionals.
About This Manual
This Product Manual describes how to setup, use, and maintain the Pegasus R6
and R4 unit. It also describes how to use the Promise Utility software that you
install and run on your Macintosh computer.
This manual includes a full table of contents, chapter task lists, and numerous
cross-references to help you find the specific information you are looking for.
Also included are four levels of notices:
Note
A Note provides helpful information such as hints or alternative
ways of doing a task.
Important
An Important calls attention to an essential step or point required
to complete a task. Important items include things often missed.
Caution
A Caution informs you of possible equipment damage or loss of
data and how to avoid them.

Pegasus R6, R4 Product Manual
2
Architecture
The Pegasus architecture is based
on a state-of-the-art PMC Sierra 8011
I/O processor coupled with 512 MB of
DDR2 SDRAM memory and a world
class enterprise-proven RAID engine.
Protocol Support
Pegasus supports ThunderboltTM
technology, providing two channels
with 10 Gb/s of throughput in both
directions simultaneously.
Thunderbolt supports daisy-chaining
up to six (6) high-speed peripheral
devices, including external disks,
video capture devices, and a Mini
DisplayPort monitor.
Pegasus has two Thunderbolt ports,
as required for daisy-chaining.
Key Benefits
• Thunderbolt 10 Gb/s data connection
• PMC Sierra 8011 I/O processor
• 512 MB of DDR2 SDRAM memory
• Promise Utility management tool
• Compatible with Apple Time Machine
• R6, six SATA 3.5-inch hard disk drives, 6 TB or 12 TB raw capacity
• R4, four SATA 3.5-inch hard disk drives, 4 TB or 8 TB raw capacity
• Additional storage up to 72 TB using multiple daisy-chained Pegasus
enclosures
• 250W Flex-ATA Power with 80 Plus Bronze.
Warning
A Warning notifies you of probable equipment damage or loss of
data, or the possibility of physical injury, and how to avoid them.

Chapter 1: Introduction to Pegasus
3
Specifications
• Physical drive support:
• 2.5-inch and 3.5-inch SATA hard disk drives
• Additional storage using multiple Pegasus enclosures
• SATA specification of 3 Gb/s transfers with CRC error-checking
• Hot-swapping of physical drives
• Command queuing (SATA drives)
• Drive roaming among channels
• S.M.A.R.T. status polling
• Hot spare drive
• RAID volume rebuilding
• Background rebuilding
• Data capacity without expansion:
• R6, 6 TB or 12 TB raw capacity
• R4, 4 TB or 8 TB raw capacity
• Data capacity with expansion, up to 72 TB
• RAID level support: RAID 0, 1, 1E, 5, 6, and 10
• Unicode file name support
• Power Supply: 250W Flex-ATA Power with 80 Plus Bronze with PFC, 100-
230V auto-ranging, 50-60Hz AC
• Error logging
• Hardware monitoring of:
• Temperature, Operating: 5° to 35°C (41° to 95°F)
• Humidity, Operating: 10 to 85 percent
• Dimensions (H x W x D):
• R6, 250 x 187 x 235 mm (9.8 x 7.4 x 9.3 in)
• R4, 195 x 187 x 235 mm (7.7 x 7.4 x 9.3 in)
• Weight with drives:
• R6, 5.9 kg (13 lbs)
• R4, 4.5 kg (10 lbs)
•Fan
• Temperature
• Power
•Enclosure
• Physical drives
• Logical drives
• RAID controller

Pegasus R6, R4 Product Manual
4
Client OS Support
The following client operating systems support the Pegasus unit:
• Mac OS 10.6 and higher
• MacBook Pro/iMac Software Update 1.5
Utility OS Support
The following client operating systems support the Promise Utility:
• Mac OS 10.6 and higher
• MacBook Pro/iMac Software Update 1.5
Certifications
Environmental: EuP Directive N, ROHS, WEEE
Safety: CB, UL, cUL, CE-LVD, PSE, BSMI, RCM
Electo-magnetic Interference: CB-EMC, FCC, CE-EMC, VCCI/PSE, BSMI,
C-tick/RCM

5
Chapter 2: Installation and Setup
This chapter contains the following topics:
• Unpacking the Pegasus Unit (page 5)
• Connecting to your Mac Computer (page 7)
• Connecting the Power (page 9)
• Installing the Software (page 10)
• Setting up the Pegasus Unit (page 13)
Unpacking the Pegasus Unit
The Pegasus box contains the following items:
• Pegasus R4 or R6 Unit
• Quick Start Guide • Hard disk drives
(Six in R6, four in R4)
• Power cord, 1.5m
Warning
The electronic components within the Pegasus unit are sensitive
to damage from Electro-Static Discharge (ESD). Observe
appropriate precautions at all times when handling the Pegasus
unit or its subassemblies.
Warning
The fan contains hazardous moving parts. Keep fingers and other
body parts away.
Important
You must obtain at least one Thunderbolt cable. The Pegasus unit
does NOT ship with Thunderbolt cables.

Pegasus R6, R4 Product Manual
6
Figure 1. Pegasus R4 front view. The R6 is similar
Figure 2. Pegasus R4 back view. The R6 is similar
Drive Carrier
Drive Power/
Status LED
DriveActivity
LED
Power
Button/LED
Thunderbolt
Link LEDs
Power
Connection
Thunderbolt
Ports

Chapter 2: Installation and Setup
7
Connecting to your Mac Computer
Connect a Thunderbolt cable from one of the Thunderbolt ports on the back of
the Pegasus to the Thunderbolt port on your Mac computer.
Figure 3. Thunderbolt and power connections on a Mac computer
Notes
• Mini Display extension cables cannot be used to connect data
devices such as Pegasus to Thunderbolt-enabled computers.
Mini Display extension cables can only be used to connect
display devices to Pegasus.
• If you have multiple Pegasus units, connect the remaining
Thunderbolt port on the first unit to either Thunderbolt port on
the second unit.
Power cable
Thunderbolt ports
Thunderbolt port
Thunderbolt cableTo power source
MacBook Pro
(shown as an example)
Pegasus system

Pegasus R6, R4 Product Manual
8
Daisy-Chaining Multiple Pegasus Units
To daisy-chain multiple Pegasus units:
1. Connect a Thunderbolt cable from one of the Thunderbolt ports on the back
of your Mac computer to one of the Thunderbolt ports on the first Pegasus
unit.
2. Connect a second Thunderbolt cable from other Thunderbolt port on the first
Pegasus unit to one of the Thunderbolt ports on the second Pegasus unit.
See Figure 4.
Figure 4. Thunderbolt daisy-chain connections
Thunderbolt cable
iMac
(shown as an
example)
Thunderbolt
ports
Pegasus
unit 2
Pegasus
unit 1
Thunderbolt
ports Thunderbolt ports

Chapter 2: Installation and Setup
9
Connecting the Power
To power the Pegasus unit:
1. Attach the power cord on the back of the Pegasus unit.
See page 7,Figure 3.
2. Plug the other end into a power source.
3. Press the Power Button.
See Figure 5. The Power Button turns orange.
It takes about 30 seconds to boot the Pegasus unit. When fully booted:
• The Power Button LED turns blue.
• The drive carrier Power/Status LEDs turn blue.
Figure 5. Pegasus R4 front view. The R6 is similar
The Connection LEDs turn blue when there is a proper connection on that
Thunderbolt port.
Shutting down the Pegasus
To shut down the Pegasus unit:
Press and hold the Power Button until the Power Button LED turns red. When
you release the Power Button, the LED goes dark.
DriveCarrier
LEDs
Power/
Status
Activity
Power
Button/LED
Connection
LEDs
Right
Left

Pegasus R6, R4 Product Manual
10
Installing the Software
The Pegasus unit ships ready to use without configuration or set-up. These
instructions are for users who plan to:
• Install their own physical drives
• Configure the Pegasus manually
Software installation involves two separate operations:
• Installing the OS driver
• Installing Promise Utility software
OS Support
The following operating systems support the Promise Utility:
• Mac OS 10.6.x
• MacBook Pro/iMac Software Update 1.5
MacBook Pro/iMac Software Update
To check your software version:
1. On the MacBook Pro or iMac desktop, click the Apple icon and choose
Software Update... from the dropdown menu.
The Software Update dialog box opens. See page 11, Figure 6.
2. Look for MacBook Pro/iMac Software Update 1.5.
•IfMacBook Pro/iMac Software Update 1.5 appears in the list, click the
Install Items button and wait for the installation to finish.
•IfMacBook Pro/iMac Software Update 1.5 does NOT appear in the list,
the update has already been installed on your computer. Go to “Driver
Installation: Macintosh” on page 11.
Important
Be sure the MacBook Pro/iMac Software Update 1.5 has been
installed BEFORE you install the Promise driver from the software
CD or from the Promise website.

Chapter 2: Installation and Setup
11
Figure 6. Software Update dialog box
Driver Installation: Macintosh
To install the driver software onto your computer:
1. Insert the CD into your computer’s DVD-ROM.
2. Double-click the driver installer icon (right).
The Welcome dialog box appears.
3. Click the Continue button.
The Install dialog box appears.
4. Click the Install button.
The password dialog box appears.
5. Type your password in the field provided and click the OK button.
The Confirmation dialog box appears to inform you that you must restart
your computer when installation is done.
6. Click the Continue Installation button to begin installation.
In a few moments the Install Succeed dialog box appears.
7. Click the Restart button to restart your computer.
When the computer has restarted, it is ready to work with the Pegasus unit.

Pegasus R6, R4 Product Manual
12
Software Installation: Macintosh
To install the Promise Utility software onto your computer:
1. Insert the CD into your computer’s DVD-ROM.
2. Double-click the Promise Utility installer icon (right).
The Welcome dialog box appears.
3. Click the Continue button.
The Install dialog box appears.
4. Click the Install button.
The password dialog box appears.
5. Type your password in the field provided and click the OK button.
In a few moments the Install Succeed dialog box appears.
6. Click the Close button to quit the installer.
The installer adds a Promise Utility icon to the Applications folder.
The Promise Utility loads automatically every time Mac OS X starts.
Your computer is ready to manage the Pegasus unit.
Important
You must register your Pegasus unit to receive support.
Go to: https://support.promise.com/userRegistration.aspx
Thank you!