THOMSON K2 User manual

K2 Level 3 RAID
FIBRE CHANNEL STORAGE
Instruction Manual
071-8463-00
NOVEMBER 2005
the most watched worldwide

2Level 3 RAID Instruction Manual November 23, 2005
Copyright Copyright © 2005 Thomson Broadcast and Media Solutions, Inc. All rights reserved. Printed in
the United States of America.
This document may not be copied in whole or in part, or otherwise reproduced except as
specifically permitted under U.S. copyright law, without the prior written consent of Thomson
Broadcast and Media Solutions, Inc., P.O. Box 59900, Nevada City, California 95959-7900
Trademarks Grass Valley, K2, Profile, and Profile XP are either registered trademarks or trademarks of
Thomson Broadcast and Media Solutions, Inc. in the United States and/or other countries.
Other trademarks used in this document are either registered trademarks or trademarks of the
manufacturers or vendors of the associated products. Thomson Broadcast and Media
Solutions, Inc. products are covered by U.S. and foreign patents, issued and pending.
Additional information regarding Thomson Broadcast and Media Solutions, Inc. trademarks
and other proprietary rights may be found at www.thomsongrassvalley.com.
Disclaimer Product options and specifications subject to change without notice. The information in this
manual is furnished for informational use only, is subject to change without notice, and should
not be construed as a commitment by Thomson Broadcast and Media Solutions, Inc. Thomson
Broadcast and Media Solutions, Inc. assumes no responsibility or liability for any errors or
inaccuracies that may appear in this publication.
U.S. Government
Restricted Rights
Legend
Use, duplication, or disclosure by the United States Government is subject to restrictions as set
forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause
at DFARS 252.277-7013 or in subparagraph c(1) and (2) of the Commercial Computer
Software Restricted Rights clause at FAR 52.227-19, as applicable. Manufacturer is Thomson
Broadcast and Media Solutions, Inc., P.O. Box 59900, Nevada City, California 95959-7900
U.S.A.
Revision Status
Rev Date Description
November 23,
2005 Initial release of K2 Level 3 RAID Instruction Manual. Part number 071-8463-00

November 23, 2005 Level 3 RAID Instruction Manual 3
Contents
Safety Summaries..............................................................................................5
Preface..................................................................................................................11
About this manual....................................................................................................11
Using the K2 Documentation Set .......................................................................11
K2 Storage System Release Notes...............................................................12
K2 Media Client Quick Start Guides ..............................................................12
Documentation CD-ROM...............................................................................12
How this manual is organized.............................................................................12
Terminology used in this manual........................................................................13
Getting more information.........................................................................................13
On-line Help Systems.........................................................................................13
Thomson Grass Valley Web Site........................................................................13
Chapter 1 About the K2 Level 3 RAID storage
Level 3 RAID features .............................................................................................15
K2 Level 3 features.............................................................................................16
Capacity and redundancy...................................................................................16
Level 3 RAID components.......................................................................................17
Chassis...............................................................................................................18
Midplane.............................................................................................................19
Disk modules......................................................................................................19
Level 3 RAID Circuit board modules ..................................................................20
Level 3 RAID Storage Chassis circuit board modules...................................20
K2 Level 3 RAID Expansion Chassis circuit board modules .........................21
Power supplies ................................................................................................... 22
Configurations .........................................................................................................23
Chapter 2 Level 3 RAID Installation Information
Installation requirements .........................................................................................25
Site requirements ...............................................................................................25
Power.............................................................................................................25
Cooling...........................................................................................................25
Addressing requirements....................................................................................26
Chassis address setting requirement ............................................................26
Cabling requirements .........................................................................................26
Binding disk modules into groups.......................................................................27
Installing a K2 Level 3 RAID Storage in an equipment rack....................................28
Unpacking the chassis........................................................................................28
Installing the rack mounts...................................................................................28
Inserting the K2 Level 3 RAID Storage chassis in the rack................................30
K2 Level 3 RAID Storage power-up and initialization..............................................33
Connecting electrical cables...............................................................................33
Powering-up the K2 Level 3 RAID Storage system............................................33
K2 Level 3 RAID Storage power-down....................................................................34
Battery Backup........................................................................................................34
Chapter 3 Servicing the Level 3 RAID
Maintenance procedures using Grass Valley Storage Utility ..................................35
Monitoring K2 Level 3 External RAID status using NetCentral ...............................35
Interpreting front panel LEDs..............................................................................36
Primary RAID chassis ...................................................................................37
Expansion chassis ........................................................................................37
Interpreting disk module LEDs................................................................................38
Interpreting controller status LEDs..........................................................................39

4Level 3 RAID Instruction Manual November 23, 2005
Contents
Interpreting expansion adapter status LEDs........................................................... 42
Interpreting power supply status LEDs ................................................................... 43
Removing and installing disk modules.................................................................... 43
Moving disk modules.......................................................................................... 43
Removing a disk module.................................................................................... 44
Installing disk module......................................................................................... 45
Replacing a RAID controller or expansion adapter................................................. 46
Removing a RAID controller or expansion adapter............................................ 46
Installing a RAID controller or expansion adapter.............................................. 47
Replacing a power supply....................................................................................... 49
Chapter 4 Level 3 RAID Technical Specifications and Operating Limits
Data handling specifications ................................................................................... 55
AC power requirements .......................................................................................... 55
Size and weight....................................................................................................... 55
Cable lengths .......................................................................................................... 55
Environmental limits................................................................................................ 56
Life expectancies of components............................................................................ 56
Glossary............................................................................................................... 57
Index...................................................................................................................... 61

November 23, 2005 Level 3 RAID Instruction Manual 5
Safety Summaries
General Safety Summary
Review the following safetyprecautions to avoidinjury andpreventdamage
to this product or any products connected to it.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the system.
Read the General Safety summary inother systemmanualsforwarningsand
cautions related to operating the system.
Injury Precautions
Use Proper Power Cord
To avoid fire hazard, use only the power cord specified for this product.
Ground the Product
This product is grounded through the grounding conductor of the power
cord. To avoid electric shock, the grounding conductor must be connected
to earth ground. Before making connections to the inputor output terminals
of the product, ensure that the product is properly grounded.
Do Not Operate Without Covers
To avoid electric shock or fire hazard, do not operate this product with
covers or panels removed.
Do Not operate in Wet/Damp Conditions
To avoid electric shock, do not operate this product in wet or damp
conditions.
Do Not Operate in an Explosive Atmosphere
To avoid injury or fire hazard, do not operate this product in an explosive
atmosphere.
Avoid Exposed Circuitry
To avoid injury, remove jewelry such as rings, watches, and other metallic
objects. Do not touch exposed connections and components when power is
present.
Product Damage Precautions
Use Proper Power Source
Do not operate this product from a power source that applies more than the
voltage specified.
Provide Proper Ventilation
To prevent product overheating, provide proper ventilation.

6Level 3 RAID Instruction Manual November 23, 2005
Safety Summaries
Do Not Operate With Suspected Failures
If you suspect there is damage to this product, have it inspected by qualified
service personnel.
Battery Replacement
To avoid damage, replace only with the same or equivalent type
recommended by the circuit board manufacturer. Dispose of used battery
according to the circuit board manufacturer’s instructions.
Safety Terms and Symbols
Terms in This Manual
These terms may appear in this manual:
WARNING: Warning statements identify conditions or practices that can
result in personal injury or loss of life.
CAUTION: Caution statements identify conditions or practices that may
result in damage to equipment or other property, or which may cause
equipment crucial to your business environment to become temporarily
non-operational.
Terms on the Product
These terms may appear on the product:
DANGER indicates a personal injury hazard immediatelyaccessible as one
reads the marking.
WARNING indicates a personal injury hazard not immediately accessible
as you read the marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product
The following symbols may appear on the product:
DANGER high voltage
Protective ground (earth) terminal
ATTENTION – refer to manual
!
!
!

November 23, 2005 Level 3 RAID Instruction Manual 7
Service Safety Summary
WARNING: The service instructions in this manual are intended for
use by qualified service personnel only. To avoid personal injury, do
not perform any servicing unless you arequalified to do so. Refer to all
safety summaries before performing service.
Do Not Service Alone
Do not perform internal service or adjustment of thisproduct unless another
person capable of rendering first aid and resuscitation is present.
Disconnect Power
To avoid electric shock, disconnect the main power by means of the power
cord or, if provided, the power switch.
Use Care When Servicing With Power On
Dangerous voltages or currents may exist in this product. Disconnect power
and remove battery (if applicable) before removing protective panels,
soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
Certifications and Compliances
Canadian Certified Power Cords
Canadian approval includes the products and power cords appropriate for
useinthe NorthAmericapower network.Allotherpowercordssuppliedare
approved for the country of use.
FCC Emission Control
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation ofthis equipment
in a residential area is likely to cause harmful interference in which case the
user willbe required to correct the interferenceat his own expense. Changes
or modifications not expressly approved by Grass Valley can affect
emission compliance and could void the user’s authority to operate this
equipment.
!

8Level 3 RAID Instruction Manual November 23, 2005
Safety Summaries
Canadian EMC Notice of Compliance
This digital apparatus does not exceed the Class A limits for radio noise
emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de la classe A
préscrites dans le Règlement sur le brouillage radioélectrique édicté par le
ministère des Communications du Canada.
EN55103 1/2
Class A Warning
This product has been evaluated for Electromagnetic Compatibility under
the EN 55103-1/2 standards for Emissions and Immunity and meets the
requirements for E4 environment.
This product complies with Class A (E4 environment). In a domestic
environment this product may cause radio interference in which case the
user may be required to take adequate measures.
FCC Emission Limits
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesirable operation.
Laser Compliance
Laser Safety Requirements
Thedeviceusedin thisproductisa Class1 certifiedlaserproduct.Operating
this product outside specifications or altering its original design may result
in hazardous radiation exposure, and may be considered an act of modifying
or new manufacturing of alaser productunder U.S. regulationscontained in
21CFR Chapter 1, subchapter J or CENELEC regulations in HD 482 S1.
People performing such an act are required by lawto recertify and reidentify
this product in accordance with provisions of 21CFR subchapter J for
distribution within the U.S.A., and in accordance with CENELEC HD 482
S1 for distribution within countries using the IEC 825 standard.
Laser Safety
Laser safety in the United States is regulated by the Center for Devices and
Radiological Health (CDRH). The laser safety regulations are published in
the “Laser Product Performance Standard,” Code of Federal Regulation
(CFR), Title 21, Subchapter J.
The International Electrotechnical Commission (IEC) Standard 825,
“Radiation of Laser Products, Equipment Classification, Requirements and
User’sGuide,” governs laser products outsidethe United States. Europe and
member nations of the European Free Trade Association fall under the
jurisdiction of the Comité Européen de Normalization Electrotechnique
(CENELEC).

November 23, 2005 Level 3 RAID Instruction Manual 9
Safety Certification
This product has been evaluated and meets the following Safety
Certification Standards:
Disposing of your used product
In the European Union — EU-wide legislation as implemented in each
member state requires that used electrical and electronic products carrying
the mark at left must be disposed of separately from normal household
waste. The equipment with this mark may include electrical accessories
(e.g. memory cards). When you dispose of such products, please follow the
agreements made between you andGrass Valley. The mark on theelectrical
and electronic productsonly applies to the current European Union Member
States. This statement is in compliance with European Commission
Directive 2002/96/EC Waste Electrical and Electronic Equipment.
Outside the European Union — Ifyou wish to dispose of used electrical and
electronic productsoutsideof the European Union, please contact yourlocal
authority and ask for the correct method of disposal.
Standard Designed/tested for compliance with:
UL1950 Safety of Information Technology Equipment,
including Electrical Business Equipment (Third
edition).
IEC 950 Safety of Information Technology Equipment,
including Electrical Business Equipment
(Second edition, 1991).
CAN/CSA C22.2,
No. 950-95 Safety of Information Technology Equipment, including Electrical Business Equipment.
EN60950 Safety of Information Technology Equipment,
including Electrical Business Equipment 1992.

10 Level 3 RAID Instruction Manual November 23, 2005
Safety Summaries

November 23, 2005 Level 3 RAID Instruction Manual 11
Preface
About this manual
The K2 Level 3 Fibre Channel RAID Storage Chassis provides RAID protected
storage for the K2 Storage System. If you are responsible for installing and servicing
K2 Level 3 RAID storage, you should read this manual.
Using the K2 Documentation Set
The following illustration shows the recommended order in which to reference the
documentation.
Documentation descriptions
Use the following descriptions to choose the other documentation you need as you
install, operate, and maintain your system.
Path for the installer of K2 Media Client models with internal storage
K2 Media Client
System Guide*
Other Manuals*
These manuals include:
- Quick Start Guide
- User Manual
- Service Manual
- RAID Storage manuals
Contains the product
specifications and
step-by-step instructions for
modifying system settings.
Contains the product
specifications and
step-by-step instructions for
modifying system settings
Find the K2 Documentation CD packaged with K2 Media
Clients and with K2 RAID Storage devices, primary chassis.
Find the K2 Storage System Release Notes packaged with
K2 RAID Storage devices, primary chassis.
K2 Media Client
System Guide*
**
*
Quick Start Guide
Contains the essential steps for
installing the K2 Media Client.
SD-only and HD/SD models each
have their own version, packaged
with the K2 Media Client.
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Γρασσ ςαλλεψ Γρουπ
K2 Media Client
Release Notes
Path for the operator
Contains the latest
information about the
hardware and software
shipped with the system.
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Γρασσ ςαλλεψ Γρουπ
K2 Media Client
Release Notes
Contains the latest information
about the hardware and
software shipped with the
system. Packaged with K2
Media Client.
K2 Media Client
User Manual*
Contains information for using
the user interface to record,
play and manage clips and to
configure channels.
K2 Manual
Grass Valley
Documentation
CD
K2 Manual
Grass Valley
Documentation
CD
Thisdocument
K
2QuickSta
rt
helpsy
ou
helpsy
ou
helpsy
ou
Path for the installer of the K2 Storage System with connected K2 Media Clients
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Γρασσ ςαλλεψ Γρουπ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Φαμιλψ οφ ΞΠ Σεριεσ
Γρασσ ςαλλεψ Γρουπ
K2 Media Client and
K2 Storage System**
Release Notes
Contains the latest
information about the
hardware and software
shipped with the system.
K2 Manual
Grass Valley
Documentation
CD
K2 Manual
Grass Valley
K2 Manual
Grass Valley
K2 Manual
Grass Valley
Documentation
CD
K2 Manual
Grass Valley
Documentation
CD
K2 Storage System
Instruction Manual*
Contains instructions for installing
and configuring K2 Storage
(external) with your K2 Media
Client and K2 Media Server.

12 Level 3 RAID Instruction Manual November 23, 2005
Preface
K2 Storage System Release Notes
The release notes contain the latest information about the software shipped on your
system. The information in this document includes software upgrade instructions,
software specifications and requirements, feature changesfrom the previous releases,
and any known problems. Because release notes contain the latest information, they
are printed out rather than included in the Documentation CD-ROM. You can find the
release notes packaged with the RAID storage chassis.
K2 Media Client Quick Start Guides
The Quick Start Guides provides step-by-step installation instructions for basic
installation and operation of the SD-only and the HD/SD K2 Media Client, including
recording and playing clips. You can find the Quick Start Guide for your particular
model packaged with the K2 Media Client.
Documentation CD-ROM
Except for the release notes and Quick Start guide, the full set of support
documentation, including this manual, is available on the Documentation CD-ROM
that you receive with your K2 Media Client. You can find the Documentation
CD-ROM packaged with the RAID storage chassis.
The Documentation CD-ROM includes the following:
•K2 Storage System Instruction Manual — Contains installation, configuration, and
maintenance procedures for shared storage options.
•RAID Instruction Manuals — There is an Instruction Manual for each type of RAID
storage device that can be a part of a K2 Media Client. These manuals contain
procedures for configuring and servicing the device.
•K2 Media Client System Guide — Contains the product specifications and
step-by-step instructions for modifying system settings. Includes instructions for
adding a K2 Media Client to the K2 Storage System.
•K2 Media Client User Manual — Describes the K2 Media Client and provides
instructions for configuring and operating the product.
•K2 Media Client Service Manual — Contains information on servicing and
maintenance.
How this manual is organized
TheK2 Level 3 RAID Storage Instruction Manual is organized around the tasks you’ll
be performing to install and service your Fibre Channel RAID External Storage
System. You can see this reflected in the chapter titles chosen for this manual. The
following identifies and describes the chapters included in this manual:
Chapter 1, About the K2 Level 3 RAID storage
Introduces the K2 RAID Storage. You can read this chapter to get familiar with the
K2 Level 3 RAID external storage key features and components.
Chapter 2, Level 3 RAID Installation Information
Describes how to install a K2 RAID Storage and K2 Level 3 Expansion Chassis,
including rack mounting. Refer to the K2 Media Client System Guide for connection
and configuration information.

November 23, 2005 Level 3 RAID Instruction Manual 13
Terminology used in this manual
Chapter 3, Servicing the Level 3 RAID
Describes how to replace FRUs, such as disk modules, and add disk modules and
redundant FRUs.
Chapter 4, Level 3 RAID Technical Specifications and Operating Limits
This appendix consists of electrical and environmental specifications.
Glossary
The Glossary explains terms used throughout this manual.
Terminology used in this manual
K2Media Clientmodelswithinternalstorageaccesstheirown RAID protectedmedia
storage drives, as a “standalone” system. K2 Media Client models with external
storage access RAID protected media storage drives that are in a separate RAID
chassis, such as the K2 Level 3 Fibre Channel RAID Storage Chassis. In order to
avoid confusion between the two types of storage, the following terms will be used
consistently throughout the K2 documentation:
K2 Storage System: specifically refers to external, or shared, storage.
K2 Media Client internal storage: refers to the internal storage system used in a
standalone K2 Media Client.
Getting more information
Product information is readily available at the following sources:
On-line Help Systems
K2 Media Client Help — You can access the on-line help through the AppCenter user
interface as follows:
• In the menu bar select Help, then choose AppCenter Help Topics from the
drop-down menu.
NetCentral Help — From the NetCentral interface access on-line help as follows:
• For general help with NetCentral manager, select Help | NetCentral Help Topics.
• For help specific to monitoring K2 Media Client system devices, select Help |
Device Providers and then select the monitored device.
Thomson Grass Valley Web Site
This public Web site contains all the latest manuals and documentation, and
additional support information. Use the following URL.
http://www.thomsongrassvalley.com.

14 Level 3 RAID Instruction Manual November 23, 2005
Preface
Grass Valley Product Support
To get technical assistance, check on the status of problems, or report new problems,
contact Grass Valley Product Support via e-mail, the Web, or by phone or fax.
Web Technical Support
To accesssupport information on the Web, visitthe product support Web page on the
Grass Valley Web site. You can download software or find solutions to problems by
searching our Frequently Asked Questions (FAQ) database.
World Wide Web: http://www.thomsongrassvalley.com/support/
Technical Support E-mail Address: [e-mail].
Phone Support
Use the following information to contact product support by phone during business
hours. Afterhours phone support is available for warranty and contract customers.
Authorized Support Representative
A local authorized support representative may be available in your country. To locate
the support representativefor your country, visit the product support Web page on the
Grass Valley Web site.
United States [phone] (Toll Free) France [phone]
Latin America [phone] (Toll Free) Germany [phone]
Eastern Europe [phone] Greece [phone]
Southern Europe [phone] Hong Kong [phone]
Middle East [phone] Italy [phone]
Australia [phone] Netherlands [phone]
Belgium [phone] Poland [phone]
Brazil [phone] Russia [phone]
Canada [phone] (Toll Free) Singapore [phone]
China [phone] Spain + 34 91 512 03 50
Denmark [phone] Sweden [phone]
Dubai + 971 4 299 64 40 Switzerland [phone]
Finland [phone] UK [phone]

November 23, 2005 Level 3 RAID Instruction Manual 15
Chapter 1
About the K2 Level 3 RAID storage
This chapter introduces the K2 RAID Storage. Topics include:
•“Level 3 RAID features” on page 15
•“Level 3 RAID components” on page 17
•“Configurations” on page 23
Level 3 RAID features
The K2 Level 3 RAID Storage is used in Level 3 and Level 3R K2 Storage Systems.
The RAID storage device is a high performance, high availability mass storage
system. The L3 RAID chassis 2Gb/s host interface supports industry standard Fibre
Channel technology.
L3 RAID
Chassis
L3 RAID
Expansion
Chassis

16 Level 3 RAID Instruction Manual November 23, 2005
Chapter 1 About the K2 Level 3 RAID storage
Four FC host ports are available, so that the L3 RAID chassis can be connected
directly to up to four media servers without Fibre Channel switches. The L3 RAID
chassis utilizes dual FC-AL technology, allowing four loop configurations within a
single chassis. Port-BypassCircuits have been added to maintain loop integrity during
failures without user intervention. Each loop and associated Port Bypass Circuits
along with all other active components are on redundant, separate hot swappable
modules. With two RAID Controllers, the two loops within a single standard chassis
are configured as a single loop with a backup loop in standby mode.
High-performance RAID processors that enable inter-controller communication at
2Gb/s are installed to implement the shared memory system. This feature not only
enhances the performance, but also helps dynamic load balancing of the host
interfaces.
The Switch based disk enclosures permits high-speed access to the disk drives being
used.
The L3 RAID chassis contains from fifteen low profile 3.5"Fibre Channel Arbitrated
Loop (FC-AL) disk drives. The chassis also supports one or two hardware RAID
Controllers in one 3U high rack-mountable chassis.
The L3 RAID Expansion Chassis provides additional storage capacity. The
Expansion Chassis has one or two Expansion Adapters installed. Up to seven L3
RAID Expansion Chassis can be connected to a single L3 RAID chassis comprising
a single disk-array storage system with up to 120 drives.
NOTE: Grass Valley does not support mixing disk drives of differing capacities in
a file system stripe group.
K2 Level 3 features
The K2 Level 3 provides 350 MB/s maximum data rate. Optical cables connect to
hosts, such as to a K2 Media Server or to a Fibre Channel switch.
The Level 3 RAID supports up to seven K2 Level 3 RAID Expansion Chassis. It does
not support connection to PFC500E, PFR500E, PFR600E, or PFR700E RAID
Expansion Chassis.
Capacity and redundancy
The level 3 RAID contains five, ten, or fifteen low profile 3.5" Fibre Channel
Arbitrated Loop (FC-AL) disk drives. The chassis also supports one or two hardware
RAID controllers in one 3U high rack-mountable chassis. The Level 3 RAID
currently uses 73GB, 146GB or 300GB drive capacities. With 15 drives, one chassis
holds up to 876GB, 1.7TB, or 3.6TB depending on the disk drive option.
The Level 3 Expansion Chassis provides additional storage capacity. Up to seven
Level 3 Expansion Chassis can be connected to a single K2 RAID Storage Chassis
comprising a single disk-array storage system with a total of 120 drives and
approximately 1.7TB, 3.4TB, 7.2TB of storage depending on the disk drive option.
This provides for cost effective storage expansion as requirements grow.

November 23, 2005 Level 3 RAID Instruction Manual 17
Level 3 RAID components
Level 3 RAID components
The Level 3 RAID components are:
• The chassis with passive midplane board
• One or two RAID controllers (K2 Level 3R) or two expansion adapters
• As many as fifteen Fibre Channel disk drives per chassis
• Two RAID chassis power supplies (K2 Level 3) or expansion chassis power
supplies
Any unoccupied slot (RAID controller or disk module) hasa filler module to maintain
air flow and compliance with electromagnetic interference (EMI) standards.
The RAID controllers, expansion adapters, disk drives and power supplies are
hot-swappable field replaceable units (FRUs), which means you can add or replace
them while the Level 3 RAID is powered up.
IMPORTANT: You must not hot swap operational RAID controllers or disk drives
without first disabling the target component using the Grass Valley Storage Utility.
An optional second RAID controller module in the Level 3 RAID, allows for
continued access to the Level 3 RAID if the primary RAID controller fails. Refer to
the K2 Storage System Instruction Manual for detailed connection and configuration
instructions.
The following figure shows the RAID Storage Chassis components. Details on each
component follow the figure.

18 Level 3 RAID Instruction Manual November 23, 2005
Chapter 1 About the K2 Level 3 RAID storage
NOTE: Every Level 3 RAID chassis power supply includes a backup battery so that
if electrical power is lost, data stored in cache memory will be saved. (Used for
nearline storage only.)
Chassis
The chassis is a sheet-metal housing that contains apassivemidplane and chassis slots
for the RAID controllers or expansion adapters, disk drives, power supplies, and the
LAN card.
A RAID chassis (which houses one or two RAID controllers) has a pre-set chassis
address of 0. An expansion chassis (which houses one or two expansion adapters)
must have its chassis address manually configured. This address is set by a control on
the expansion adapter. Refer to your K2 Storage System Instruction Manual for
information on setting the chassis address switch. See also, “Addressing
requirements” on page 26.
The following diagram shows how disk modules are identified based on the chassis
address and physical location. The chassis with an address set to 0 contains drives
from 00 to 0E; the expansion chassis with an address set to 1 contains drives from 10
to 1E.
Controller 0
Chassis
Controller 1
Power Supply 1
Power Supply 0

November 23, 2005 Level 3 RAID Instruction Manual 19
Midplane
An operating primary RAID chassis must have, at a minimum, the first three physical
drives (00 - 02) installed, as the RAID configuration information is written to these
drives. Microcode is also written to these disks when RAID controller microcode is
loaded.
Midplane
The midplane distributes power and signals to all the chassis components. All FRUs
plug directly into midplane connectors.
Disk modules
Each disk module consists of a Fibre Channel disk drive in a carrier assembly. If a
disk drive fails, and needs replacing, you can do so while the RAID Storage Chassis
is powered up. Replacement disk drives begin rebuilding immediately after being
installed. (See “Removing and installing disk modules” on page 43.)
The disk drives are 3.5-inch FC-AL drives that conform to the Fibre Channel
Arbitrated Loop (FC-AL) standards and support dual-port FC-AL interconnects
through the two RAID controllers and their cabling.
0 00 0 01 0 02 0 03 0 04
Disk Modules
Primary chassis
Expansion chassis
0 05 0 06 0 07 0 08 0 09 0 0 A 0 0 B 0 0 C 0 0 D 0 0 E
Disk
ID
Chassis
Address
1 10 1 11 1 12 1 13 1 14
Disk Modules
1 15 1 16 1 17 1 18 1 19 1 1 A 1 1 B 1 1 C 1 1 D 1 1 E

20 Level 3 RAID Instruction Manual November 23, 2005
Chapter 1 About the K2 Level 3 RAID storage
NOTE: Once the Level 3 RAID is installed and configured, the disk
modules become slot dependent. Moving disk modules between physical
slots will result in loss of data and the need to reconfigure the system.
Level 3 RAID Circuit board modules
There are two circuit board modules used: the RAID controller module and the
expansion adapter. The RAID controller module is in the primary RAID chassis. It
manages the disk drives and provides a Fibre Channel interface to the K2 Media
Server system or Fibre Channel switch fabric. The expansion adapter is in an
Expansion chassis. It manages the disk drives, in conjunction with the connected
RAID controller and provides a Fibre Channel interface to the primary chassis.
Level 3 RAID Storage Chassis circuit board modules
The K2 Level 3R includes one or two RAID controller modules. This provides
redundant Fiber Channel interface ports.
The following figure shows a K2 Level 3 RAID Storage Chassis with the two RAID
controller modules installed.
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