Grass Valley K2 Level 2 RAID User Manual

K2 Level 2 RAID

FIBRE CHANNEL STORAGE

Instruction Manual

071-8462-01
SEPTEMBER 2006

Copyright Copyright © 2006 Grass Valley, Inc. All rights reserved. Printed in the United States of America.

This document may not be copied in whole or in part, or otherwise r eproduced except as
specifically permitted under U.S. copyright law, without the prior written consent of Grass
Valley, Inc., P.O. Box 59900, Nevada City, California 95959-7900

This product may be covered by one or more U.S. and foreign patents.

Trademarks Grass Valley, K2, Turbo, M-Series, Profile, Profile XP, NewsBrowse, NewsEdit, NewsQ,

NewsShare, NewsQ Pro, Aurora, and Media Manager ar e either registered trademarks or
trademarks of Grass Valley, 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. Grass Valley, Inc. products are covered by U.S. and
foreign patents, issued and pending. Additional information regarding Grass Valley, 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 Grass Valley, Inc. Grass Valley, Inc. assumes no
responsibility or liability for any errors or inacc uracies 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 Grass
Valley, Inc., P.O. Box 59900, Nevada City, California 95959-7900 U.S.A.

Revision Status

Rev Date Description

November 23,
2005

September 8,
2006

Initial release of the K2 Level 2 RAID Fibre Channel Storage
Instruction Manual. Part number 071-8462-00

Corrected controller DIP switch settings. Part number —
071-8462-01

2 Level 2 RAID Instruction Manual September 8, 2006

Contents

Safety Summaries..............................................................................................5

Preface..................................................................................................................11

Chapter 1 About the K2 Level 2 RAID storage

K2 Level 2 RAID features........................................................................................17

K2 Level 2 RAID features...................................................................................18

Capacity and redundancy...................................................................................18

K2 Level 2 RAID components.................................................................................18

Chassis...............................................................................................................19

Midplane.............................................................................................................20

Disk modules......................................................................................................20

K2 Level 2 RAID Circuit board modules.............................................................21

K2 Level 2 RAID RAID Storage Chassis circuit board modules....................21

K2 Level 2 RAID Expansion Chassis circuit board modules .........................22

Power supplies...................................................................................................23

Configurations.........................................................................................................24

Chapter 2 K2 Level 2 RAID Installation Information

Installation requirements .........................................................................................25

Site requirements ...............................................................................................25

Power.............................................................................................................25

Cooling...........................................................................................................25

Controller configuration requirements ................................................................26

Addressing requirements....................................................................................27

FC-AL address ID..........................................................................................27

Chassis address setting requirement ............................................................28

Expansion chassis diagnostic switch setting requirement.............................29

Cabling requirements.........................................................................................30

Binding disk modules into groups.............................................. .........................30

Installing a K2 Level 2 RAID Storage in an equipment rack....................................31

Unpacking the chassis............................. ...... ................................. ...... ...... ........31

Installing the rack mounts...................................................................................31

Inserting the K2 Level 2 RAID Storage chassis in the rack................................33

K2 Level 2 RAID Storage power-up and initialization..............................................36

Connecting electrical cables................................................ ...... ..... ....................36

Powering-up the K2 Level 2 RAID Storage system............................................36

K2 Level 2 RAID Storage power-down....................................................................37

Battery Backup........................................................................................................37

Chapter 3 Servicing the K2 Level 2 RAID

Maintenance procedures using Storage Utility........................................................39

Monitoring K2 Level 2 RAID status using NetCentral..............................................39

Interpreting front panel LEDs ..................................................................................41

Interpreting disk module LEDs............................................................ ...... ...... ..... ...42

Interpreting controller status LEDs..........................................................................43

Interpreting expansion adapter sta tus LEDs........................................................ ...45

Interpreting LAN card status LEDs............................................................ ...... ........46

Interpreting power supply status LEDs....................................................................47

Removing and installing disk modules....................................................................47

Moving disk modules..........................................................................................47

Removing a disk module ....................................................................................48

Installing disk module.........................................................................................49

Replacing a RAID controller or expansion adapter .................................................50

Removing a RAID controller or expansion adapter ............................................50

September 8, 2006 Level 2 RAID Instruction Manual 3

Contents

Installing a RAID controller or expansion adapter..............................................51

Replacing the LAN card.......................................................................................... 53

Replacing a power supply.......................................................................................56

Chapter 4 K2 Level 2 RAID Technical Specifications and Operating Limits

AC power requirements .......................................................................................... 61

Size and weight.......................................................................................................61

Cable lengths.......................................................................................................... 61

Environmental limits................................................................................................ 62

Life expectancies of components............................................................................ 62

Glossary............................................................................................................... 63

Index......................................................................................................................67

4 Level 2 RAID Instruction Manual September 8, 2006

Safety Summaries

General Safety Summary

Review the following saf ety precautions to avoid injury and prevent damage
to this product or any products connected to it.

Only qualified personnel should perform service procedures.

While using this pr oduc t, you may need to acce ss oth er par ts o f the syste m.
Read the General Safety summary in other syst em manuals for warnings and
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 maki ng connections to the input or outpu t 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 jewelr y such as ring s, wa tc hes , and othe r meta ll ic
objects. Do not touch ex posed conn ectio ns and compone nts when power is
present.

Product Damage Precautions

Use Proper Power Source

Do not operate this product f rom a power sour ce that applie s more than the
voltage specified.

Provide Proper Ventilation

To prevent product overheating, provide proper ventilation.

September 8, 2006 Level 2 RAID Instruction Manual 5

Safety Summaries

Do Not Operate With Suspected Failures

If you suspect there is da mage to this product, have it in spected by q ualified
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:

!

!

Terms on the Product

Symbols on the Product

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.

These terms may appear on the product:

DANGER indicates a personal injury hazard immedi ately access ible as one
reads the ma rking.

WARNING indicates a personal injury hazard not immediately accessible
as you read the marking.

CAUTION indicates a hazard to property including the product.

The following symbols may appear on the product:
DANGER high voltage

Protective ground (earth) terminal

!

6 Level 2 RAID Instruction Manual September 8, 2006

ATTENTION – refer to manual

Service Safety Summary

!

Do Not Service Alone

Disconnect Power

Use Care When Servicing With Power On

WARNING: The service instructions in this manual are intended for
use by qualified service personnel only. To avoid personal injury, do
not perform any servic ing unless you are qualified t o do so. Refer to al l
safety summaries before performing service.

Do not perform interna l service or adj ustment of this pro duct unless anothe r
person capable of rendering first aid and resuscitation is present.

To avoid electric shock, discon nect the main power by means of the power
cord or, if provided, the power switch.

Dangerous voltages or cur rents may exist in t his product. Discon nect 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
use in the North America power network. All other power cords supplied are
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 use d in accordance with th e instruction ma nual, may cause
harmful interfere nce to radio communication s. Operation of thi s equipment
in a residential area is likely to cause harmful interference in which case the
user will be required to cor rect the interference at his own expense. Changes
or modifications not expressly approved by Grass Valley can affect
emission compliance a nd could void the user’s authority to operate this
equipment.

September 8, 2006 Level 2 RAID Instruction Manual 7

Safety Summaries

Canadian EMC Notice of Compliance

EN55103 1/2
Class A Warning

FCC Emission Limits

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.

This product has been evaluated for Electromagnetic Compatibility under
the EN 55103-1/2 standards for Emissions and Immunity and meets the
requiremen ts 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.

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 re ceived,
including interference that may cause undesirable operation.

Laser Compliance

Laser Safety Requirements

The device used in thi s product is a Class 1 certi fied laser product. Opera ting
this product outsi de spe cifications or altering its original design may result
in hazardous radiati on exposure, and may be consi dered an act of modifyi ng
or new manufacturing o f a laser product under U.S. regula tions contained i n
21CFR Chapter 1, subchapter J or CENELEC regulations in HD 482 S1.
People performing such an act are re quired by law to re certify and reid entify
this product in accordance with provisions of 21CFR subchapter J for
distribution within th e U.S.A., and in accordance with CENELEC HD 482
S1 for distr i bution within countries using the IEC 825 sta ndard.

Laser Safety

Laser safety in the United States is regulated by the Center for Devices and
Radiological Health ( CDRH). The la ser safety regulations a re publ is hed i n
the “Laser Product Performance Standard,” Code of Federal Regulation
(CFR), Title 21, Subchapter J.

The International Electrotechnical Commission (IEC) Standard 825,
“Radiation of Laser Produ cts, Equipmen t Classific ation, Requi rements and
User’s Guide,” gov erns laser products outside the Unit ed States. Europe and
member nations of the European Free Trade Association fall under the
jurisdiction of the Comité Européen de Normalization Electrotechnique
(CENELEC).

8 Level 2 RAID Instruction Manual September 8, 2006

Safety Certification

This product has been evaluated and meets the following Safety
Certificat ion Standards:

Standard Designed/tested for compliance with:

UL1950 Safety of Information Technology Equipment,

IEC 950 Safety of Information Technology Equipment,

CAN/CSA C22.2,
No. 950-95

EN60950 Safety of Information Technology Equipment,

Disposing of your used product

In the European Union — EU-wide l egislation as implemen ted 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 dispos e of such produc ts, please follow the
agreements made between you and Grass Valley. Th e mark on the elect rical
and electronic produc ts only applies to the c urrent European Union Membe r
States. This statement is in compliance with European Commission
Directive 2002/96/EC Waste Electrical and Electronic Equipment.

including Electrical Business Equipment (Third
edition).

including Electrical Business Equipment
(Second edition, 1991).

Safety of Information Technology Equipment,
including Electrical Business Equipment.

including Electrical Business Equipment 1992.

Outside the European Un ion — If you wish to dispo se of used electric al and
electronic produc ts outside o f the European Un ion, please c ontact your local
authority and ask for the correct method of disposal.

September 8, 2006 Level 2 RAID Instruction Manual 9

Safety Summaries

10 Level 2 RAID Instruction Manual September 8, 2006

Preface

About this manual

The K2 Level 2 RAID Storage Chassis provides RAID protected storage for the K2
Storage System. If you are responsible for installing and servicing the K2 Level 2
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.

Path for the installer of K2 Media Client models with internal storage

Grass Valley

K2 Manual

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Φαμιλψ οφ ΞΠ Σερ

Φαμιλψ οφ ΞΠ Σερ

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K2 Media Client
Release Notes

Contains the latest information
about the hardware and
software shipped with the
system. Packaged with K2
Media Client.

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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.

K2 Media Client
System Guide*

Contains the product
specifications and
step-by-step instructions for
modifying system settings.

Documentation

CD

Path for the installer of the K2 Storage System with connected K2 Media Clients

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K2 Media Client and
K2 Storage System**
Release Notes

Contains the latest
information about the
hardware and software
shipped with the system.

ath for the operator

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K2 Media Client
Release Notes

Contains the latest
information about the
hardware and software
shipped with the system.

Grass Valley

K2 Manual

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 or
Level 1 device.

Grass Valley

K2 Manual

Documentation

CD

K2 Media Client
User Manual*

Contains information for using
the user interface to record,
play and manage clips and to
configure channels.

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.

Grass Valley

K2 Manual

Documentation

CD

K2 Media Client
System Guide*

Contains the product
specifications and
step-by-step instructions for
modifying system settings

Grass Valley

Grass Valley

K2 Manual

Documentation

CD

Other Manuals*

These manuals include:

-

Quick Start Guide

-

User Manual

- Service Manual

- RAID Storage manuals

Documentation descriptions

Use the following descriptions to choose the other documentation you need as you
install, operate, and maintain your system.

Grass Valley

K2 Manual

K2 Manual

September 8, 2006 Level 2 RAID Instruction Manual 11

Preface

K2 Storage System Release Notes

The release notes contain the latest information about the software shipped on your
system. Th e information in this document includes softw are upgrade instructi ons,
software specificat ions and require ments, feature cha nges from the previo us releases,
and any known problems. Because release notes contain the latest information, they
are printed out rather tha n included in the Documentati on CD-ROM. You can find the
release notes packaged with the RAID storage chassis.

Documentation CD-ROM

Except for the release notes, 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.

Level 1 and RAID Instruction Manuals — There is an Instruction Manual for the

•
Level 1 device each type of RAI D storag e device that ca n be a p art of a K2 Med ia
Client. These manuals con tain procedures for co nfiguring and serv icing the device.

K2 Media Client System Guide — Contains the product specifications and

•
step-by-step instructions for mo difying system settings. Includes instructions for
adding a K2 Media Client to the K2 Storage System.

•

K2 Media Client Quick Start Guides — The Quick Start Guides provides step- by-step

installation inst ructions for basic in stallat ion and oper ation of the SD-only and the
HD/SD K2 Media Client, including recording and playing clips.

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

The K2 Level 2 RAID Storage Instruction Manual is or ganized around t he tasks you’ll
be performing to ins tall and s ervic e y our RAID device s. You can see this reflec te d in
the chapter titles chosen for this manual. The following identifies and describes the
chapters included in thi s manual:

Chapter 1, About the K2 Level 2 RAID storage

Introduces the K2 RAID Storage. You can read this chapter to get famili ar with the
K2 Level 2 RAID external storage key features and components.

Chapter 2, K2 Level 2 RAID Installation Information

Describes how to install a K2 RAID Storage and K2 Level 2 Expansion Chassis,
including rack mountin g. Ref er to the K2 Media Client Syst em Gui de for connection
and configuration information.

Chapter 3, Servicing the K2 Level 2 RAID

Describes how to replace FRUs, such as disk modules, and add disk modules and
redundant FRUs.

12 Level 2 RAID Instruction Manual September 8, 2006

Chapter 4, K2 Level 2 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

K2 Media Client models with inte rnal storage access their own RAID pr otected media
storage drives, as a “standalone” system. K2 Media Client models with exter nal
storage access RAID protected media storage drives that are in a separate RAID
chassis, such as the K2 Level 2 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 Sy st e m s

K2 Media Client Help — You can access the on-line help through the AppCenter user

interface as follows:

• In the menu bar select
drop-down menu.

NetCentral Help — From the NetCentral interface access on-line help as follows:

• For general help with NetCentral manager, select

• For help specific to monitoring K2 Media Client system devices, select

Device Providers

Help, then choose AppCenter Help Topics from the

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.

Help | NetCentral Help Topics.

Help |

September 8, 2006 Level 2 RAID Instruction Manual 13

Preface

Grass Valley Product Support

To get technical as sista nce , check on the stat us of pro blems, o r repo rt ne w proble ms,
contact Grass Valley Product Support via e-mail, the Web, or by phone or fax.

Web Technical Support

To access support infor mation on t he Web, visit the pr oduct support Web page on the
Grass Valley Web site. You can download software or f ind sol ut ion s t o pr oblems 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.

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]

Authorized Support Representative

A local authorized s upport repre sentative ma y be availabl e in your coun try. To locat e
the support represe ntative for yo ur country, visi t the product s upport Web page on t he
Grass Valley Web site.

14 Level 2 RAID Instruction Manual September 8, 2006

September 8, 2006 Level 2 RAID Instruction Manual 15

Preface

16 Level 2 RAID Instruction Manual September 8, 2006

Chapter 1

About the K2 Level 2 RAID storage

This chapter introduces the K2 RAID Storage. Topics include:

• “K2 Level 2 RAID features” on page 17

• “K2 Level 2 RAID components” on page 18

• “Configurations” on page 24

K2 Level 2 RAID features

The K2 RAID Storage is a high performance, high av ailability mass storage syste m.
High-bandwidth storage is made possible using Fibre Channel Arbitrated Loop
(FC-AL) technology. The K2 Level 2 RAID’s modular, scalable design provides
additional disk storage as your needs increase.

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HOST ID

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Feature highlights:

• 15 drives in a 3U vertical rack space

• No single point of failure

• All activ e components are hot-serviceab le

• Scalable expansion using RAID Expansion Chassis

• Optional dual RAID controllers provide Fibre Channel failover

• Optical Fibre Channel Small Form-Fa ctor interface

September 8, 2006 Level 2 RAID Instruction Manual 17

Chapter 1 About the K2 Level 2 RAID storage

The K2 Level 2 utilizes dual FC-AL technology, allowing two loop configurations
within a single chassis. Loop integrity is maintained during failures without user
intervention. Each lo op and associated ci rcuits along with al l other active component s
are on redundant, se par at e hot swappable modules. This impr oves se rvi ceability and
increases fault tolerance by eliminating any single point of failure.

K2 Level 2 RAID features

The K2 Level 2 RAID controllers provide enhanced performance of up to 2 Gb/s
transfer rates using SCSI protocol. Optical cables connect to hosts, such as to a K2
Media Server or to a Fibre Channel switch.

The Level 2 RAID supports one K2 Level 2 RAID Expansion Chassis. It does not
support connection to PFC500E, PFR500E, or PFR600E RAID Expansion Chassis.
Copper cables connect a K2 Level 2 RAID to the K2 Level 2 RAID Expansion
Chassis.

Capacity and redundancy

The level 2 RAID contains five, ten, or fifteen half-height 3.5" Fibre Channel
Arbitrated Loop (FC-AL) di sk drives . The chassi s also suppor ts one or t wo hardware
RAID controllers in one 3U high rack-mountable chassis. The K2 Level 2 RAID
currently uses 73GB, 146GB or 300GB drive capacit ies. Wit h 15 drives, one chassis
holds up to 876GB, 1.7TB, or 3.6TB depending on the disk drive option.

The K2 Level 2 Expansion Chassis provides additional storage capacity. One K2
Level 2 Expansion Chassis can be connected to a single K2 RAID Storage Chassis
comprising a single disk-array storage system with a total of 30 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.

K2 Level 2 RAID components

The K2 Level 2 RAID components are:

• The chassis with passive midplane board

• One or two RAID controllers (K2 Level 2R) or two expansion adapters

• As many as fifteen Fibre Channel disk drives per chassis

• Two RAID chassis power suppli es (K2 Level 2 RAID) or expansion chassis powe r
supplies

• One LAN card

Any unoccupied slot (RAID c ontroller, disk module, o r LAN card) has a filler module
to maintain air flow and compliance with electromagnetic interference (EMI)
standards.

The RAID controllers, e xpansion a dapters, disk dri ves, power supp lies, and the LAN
card are hot-swappable field replaceable units (FRUs), which means you can add or
replace the m while the K2 Level 2 RAID is powered up.

IMPORTANT: You must not hot swap operat ional RAID cont rollers or di sk drives
without first disa bling t he targe t compo nent usi ng the Grass Valley Storage Ut ilit y.

18 Level 2 RAID Instruction Manual September 8, 2006

Controller 1

Chassis

An optional second RAID controller module in the K2 Level 2 RAID, allows for
continued access to the K2 Level 2 R AID if the primary RAID controller fails.
Adding a second RAID controller to the same chassis is not intended to increase
performance, but rather to add redundancy. 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.

Chassis

LAN Card

Power Supply 1

Chassis

Controller 0

Power Supply 0

NOTE: Every K2 Level 2 RAID chassis power supp ly inc lud es a backup battery so
that if electrical powe r is lost, data stor ed in cache memory will be saved. Dat a store
cache is not used in the K2 Level 2 RAID, so the Battery Backup module is not used,
even though it ships as part of the power supply.

The chassis is a sheet-metal hou sing that contains a passive midpl ane 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 chas sis address set to 1. This addre ss is set by a c ontrol on th e expansion
adapter. Refer to your K2 Storage System Instruction Manual for information on
setting the chassis address switch. See also, “Addressing requirements” on page 27.

September 8, 2006 Level 2 RAID Instruction Manual 19

Chapter 1 About the K2 Level 2 RAID storage

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 0 to 14; the expansion chassis with an address set to 1 contains drives from 16
to 30. There is no drive 15 in the numbering sequence.

Primary chassis

0 000 010 020 030

Chassis
Address

Expansion chassis
starts with disk 16.

There is no disk 15.

Disk

ID

Expansion chassis

1 161 171 181 191

04

0 050 060 070 080 090 100 110 120 130

Disk Modules

20

1 211 221 231 241 251 261 271 281 291

Disk Modules

An operating primary RAI D chassis must have, at a mini mum, the fir st three ph ysical
drives (0 - 2) installed, as the RAID configuration information is written to these
drives. Microcode is also written to these disks when RAID controller microcode is
loaded.

14

30

Midplane

The midplane distribute s power and si gna ls to all the chassis compone nts . All FRUs
plug directly into midplane connec tor s.

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 47.)

20 Level 2 RAID Instruction Manual September 8, 2006

K2 Level 2 RAID Circuit board modules

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.

NOTE: Once the K2 Level 2 External 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.

K2 Level 2 RAID Circuit board modules

There are three circuit board modules used: the RAID controller module, the
expansion adapter , and the LAN card. Th e RAID c ontroll er mod ule is in the prim ary
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. The LAN card is in the primary RAID chassis only. It provides an Ethernet
port for NetCentral monitoring, a shutdown switch, and signal connections for an
uninterruptive power supply (UPS).

K2 Level 2 RAID RAID Storage Chassis circuit board modules

The K2 Level 2R includes one or two RAID controller modules. This provides
redundant Fiber Channel interface ports.

The following figure s hows a K2 Level 2 RAID RAID Storage Chass is wit h t he t wo
RAID controller modules install ed.

September 8, 2006 Level 2 RAID Instruction Manual 21