IBM nseries with ESX

Planning for VMware ESX Server installation on N series Installing and configuring SnapManager for Virtual Infrastructure Using FlexClone with VMware ESX Server... SnapManager for Virt

Planning for VMware ESX Server

installation on N series

Installing and configuring SnapManager

for Virtual Infrastructure

Using FlexClone with

VMware ESX Server

International Technical Support Organization

IBM System Storage N series with VMware ESX Server

April 2011

SG24-7636-01

Second Edition (April 2011)

This edition applies to Data ONTAP 7.3.4 and later

Note: Before using this information and the product it supports, read the information in “Notices” on

page xi

© Copyright IBM Corp 2008, 2011 All rights reserved iii

Contents

Notices xi

Trademarks xii

Preface xiii

The team who wrote this book xiii

Now you can become a published author, too! xv

Comments welcome xv

Stay connected to IBM Redbooks xv

Summary of changes xvii

April 2011, Second Edition xvii

Chapter 1 Introduction to IBM System Storage N series 1

1.1 Product overview 2

1.2 N series hardware 3

1.2.1 Maximum number of network interfaces 4

1.2.2 N series A model and G model features 5

1.2.3 Hardware quick reference for N series A and G models 5

1.3 N series standard software features 6

1.4 Optional software 8

1.5 Performance Accelerator Module 10

1.6 N series unified storage systems 10

1.6.1 IBM System Storage N3000 13

1.6.2 IBM System Storage N5000 20

1.6.3 IBM System Storage N6000 21

1.6.4 IBM System Storage N7000 32

1.7 IBM System Storage N series Gateways 38

1.7.1 IBM System Storage N series Gateway highlights 40

1.7.2 Gateway RAID 41

1.7.3 IBM System Storage N6040, N6060, and N6070 Gateway models 42

1.7.4 IBM System Storage N7700 and 7900 Gateway models 42

1.7.5 LUN sizing 43

1.7.6 LUN mapping 43

1.8 N series expansion units 44

1.8.1 Intermixing EXN units with N series A models 45

1.8.2 EXN1000 45

1.8.3 EXN4000 46

1.8.4 EXN3000 48

Chapter 2 Introduction to virtualization 49

2.1 Advantages of virtualization 50

2.2 Storage virtualization 51

2.3 Network virtualization 52

2.4 Application virtualization 53

2.5 Server virtualization 53

2.5.1 VMware Virtual Infrastructure 54

2.5.2 Implementation example 56

Chapter 3 Benefits of N series with VMware ESX Server 57

3.1 Increased protection with RAID-DP 58

3.2 Cloning virtual machines 58

3.3 N series LUNs for VMware host boot 58

3.4 N series LUNs for the Virtual Machine File System 59

3.5 Using N series LUNs for Raw Device Mappings 60

3.6 Growing Virtual Machine File System data stores 60

3.7 Multiprotocol capability for storing VMDK files on iSCSI, SAN, or NFS volumes 61

3.8 Backup and recovery of your VMware server (SnapVault, Snapshot, SnapMirror) 61

3.9 Using N series deduplication with VMware 62

3.9.1 Coupling deduplication and compression 62

Chapter 4 Planning for an N series and VMware ESX Server 65

4.1 Planning requirements 66

4.1.1 Compatibility and support 66

4.1.2 Data ONTAP 66

4.1.3 VMware ESX Server 66

4.2 Overview of solution sizing 66

4.2.1 VMware ESX Server sizing 66

4.2.2 N series sizing 67

4.3 Planning for the virtualized solution 69

4.3.1 Storage options 70

4.3.2 N series storage configuration 73

4.4 Configuration limits and guidance 75

4.4.1 N series volume options 75

4.4.2 RDMs and data center sizing 75

4.4.3 LUN sizing for VMFS data stores 76

4.4.4 NFS data store limits 76

4.4.5 NFS volume options 77

4.5 Virtual disk starting partition offset 77

4.5.1 Formatting with the correct starting partition offsets 79

4.6 Storage provisioning 79

4.6.1 Fibre Channel and iSCSI LUN provisioning 79

4.6.2 NFS provisioning 80

4.7 Storage connectivity 80

4.7.1 Fibre Channel connectivity 80

4.7.2 iSCSI and IP SAN connectivity 82

4.7.3 NFS connectivity 87

4.7.4 VMware ESX Server Fibre Channel and iSCSI multipathing 88

4.7.5 Managing multipathing with N series FCP ESX Host Utilities for Native OS 90

4.8 Networking for IP storage 91

4.8.1 Network configuration options for the VMware ESX Server 92

4.8.2 Network configuration options for the N series storage system 96

4.9 Increasing storage utilization 99

4.9.1 N series deduplication 100

4.9.2 Storage thin provisioning 102

4.10 Advanced guest operating system I/O configurations 104

4.10.1 Setting SCSI timeout values for N series failover events 104

4.10.2 Monitoring and management 107

4.10.3 Storage growth management 107

4.11 Backup and recovery 112

4.11.1 Snapshot technologies 112

4.11.2 Data layout for Snapshot copies 113

4.11.3 Configuring Snapshot copies with VMware ESX server Snapshot 117

Contents v

4.11.4 Configuring VMware ESX Server and N series Secure Shell 118

4.11.5 Recovering guests from a VMFS Snapshot copy 120

4.11.6 Recovering guests from an RDM Snapshot copy 121

4.11.7 Recovering guests from an NFS Snapshot copy 121

4.12 N series FlexShare 122

4.12.1 Supported configurations 123

4.12.2 Features 123

4.12.3 Prerequisite 123

4.13 Licensing 123

4.13.1 VMware licensing 123

4.13.2 N series licensing 124

Chapter 5 Preparing the storage environment for VMware ESX Server 125

5.1 Boot options for VMware ESX Servers 126

5.2 Preparing N series for the VMware ESX Server 126

5.2.1 Preparing N series LUNs for the ESX boot from SAN 127

5.2.2 Zoning a LUN in the SAN switch 139

5.2.3 Configuring Fibre Channel HBA for boot from SAN 145

5.3 Preparing N series LUNs for VMware ESX guest operating systems 149

5.3.1 Adding licenses to N series systems 150

5.3.2 Presenting the LUN to the VMware ESX Server over the FCP 151

5.3.3 Presenting the LUN to VMware ESX Server over the iSCSI protocol 160

5.3.4 NFS volumes for Virtual Infrastructure 3 173

5.4 Using N series LUN for Raw Device Mapping 180

5.4.1 RDM compatibility mode 180

5.4.2 Attaching an RDM disk device to a guest operating system 180

5.5 Partition alignment 190

5.5.1 Fixing partition alignment on a Windows guest OS 191

Chapter 6 Installing the VMware ESX operating system using N series storage 205

6.1 Preinstallation tasks 206

6.2 Installing the ESX operating system 206

Chapter 7 Installing and configuring Virtual Center 215

7.1 Installing Virtual Center 216

7.1.1 Installing Microsoft SQL Server for Virtual Center 216

7.1.2 Configuring SQL for Virtual Center 228

7.1.3 Installing Virtual Center 235

7.2 Configuring Virtual Center 242

7.2.1 Creating a data center 242

7.2.2 Adding a host 244

7.2.3 Templates 247

Chapter 8 N series cloning 249

8.1 VMware cloning technologies 250

8.1.1 Cloning individual guests 250

8.2 Cloning guests within the data store 253

8.3 Cloning a data store 260

8.4 Cloning VMware ESX Servers 271

Chapter 9 Setting up the network for VMware ESX guest operating systems 279

9.1 VMware ESX Server networking overview 280

9.2 Configuring the host network for guest operating systems 280

9.3 Setting up storage networking 285

9.3.1 Preparing the guest operating system and storage system for iSCSI 285

Chapter 10 Backup using snapshots 297

10.1 Storage preparation 298

10.1.1 Creating an N series volume 298

10.1.2 Creating and mapping a LUN 303

10.1.3 Configuring a Virtual Infrastructure 3 host and data store 307

10.1.4 Configuring Virtual Infrastructure 3 guests 315

10.2 Taking a snapshot 330

10.3 Scheduling snapshots 334

Chapter 11 Recovery options 339

11.1 Restoring a volume 340

11.2 Restoring a volume to a different location (FlexClone) 342

11.2.1 Creating a clone 343

11.2.2 Accessing a LUN from a cloned volume 346

11.2.3 Preparing the LVM Resignature 351

11.2.4 Mounting a cloned LUN 351

11.3 Recovering a VMware guest 353

11.3.1 Shutting down the guest 353

11.3.2 Deleting guest data 354

11.3.3 Copying cloned data 357

11.3.4 Reinventorying the guest 360

11.3.5 Recovering the VMware snapshot 366

11.3.6 Starting the guest 366

11.4 Recovering files from within a guest 367

11.4.1 Creating a temporary recovery guest 368

11.4.2 Connecting the cloned VMDK to the temporary guest 370

11.4.3 Copying the files to the target guest 379

11.4.4 Disconnecting the cloned data store from the guest 386

11.4.5 Removing the clone 390

Chapter 12 Backup and recovery to a separate system 397

12.1 Licensing the SnapVault locations 398

12.2 Setting up the primary storage 399

12.3 Creating a Qtree 400

12.4 Setting up auxiliary storage 403

12.5 Configuring SnapVault 406

12.5.1 Running the CLI 407

12.5.2 Setting permissions 407

12.5.3 Performing an initial SnapVault transfer 408

12.5.4 Configuring the schedule 409

12.5.5 Scripting a schedule 410

12.6 Taping backups from the SnapVault secondary system 411

12.7 Restoring SnapVault snapshots 411

12.7.1 Preparation 411

12.7.2 Restoring the Qtree 412

12.7.3 Restoring a previous backup 413

12.7.4 Mapping the LUN 414

12.7.5 Mounting a restored image in the VMware host 416

Chapter 13 High availability and disaster recovery 417

13.1 High availability 418

13.1.1 N series node failures 418

Contents vii

13.1.2 VMware ESX Server machine failures 419

13.2 Disaster recovery options 419

13.3 Setting up disaster recovery 420

13.3.1 Setting up the primary storage 420

13.3.2 Licensing SnapMirror 421

13.3.3 Setting permissions 422

13.3.4 Configuring the volume mirror 423

13.3.5 Starting a mirror 426

13.4 Recovering from a disaster 430

13.4.1 Breaking the mirror 430

13.4.2 Mapping the LUNs 434

13.4.3 Rescanning the hosts 436

13.4.4 Reinventorying virtual machines 437

13.4.5 Editing virtual machines 440

13.4.6 Starting virtual machines 445

13.5 Returning to production 446

13.5.1 Replicating data from disaster recovery to the production site 447

13.5.2 Preventing access and performing a final update 448

13.5.3 Splitting the mirror 449

13.5.4 Re-establishing the mirror from the production to disaster recovery site 449

13.5.5 Configuring VMware hosts and virtual machines on the production site 450

13.6 Disaster recovery testing 451

Chapter 14 Advanced Single Instance Storage with VMware Virtual Infrastructure 3 453

14.1 A-SIS deduplication overview 454

14.2 Storage consumption in Virtual Infrastructure 3 environments 455

14.3 When to run deduplication 455

14.4 The effect of snapshots in deduplicated volumes 455

14.5 Enabling deduplication on a volume 456

14.5.1 Setting up deduplication on a volume 456

14.5.2 Deduplication results 459

14.5.3 Deduplication of LUNs 460

Chapter 15 Postinstallation considerations for VMware ESX Server 461

15.1 Connecting to the host Virtual Infrastructure Client 462

15.2 Patching the VMware ESX Server to the latest patch level 464

Chapter 16 N series thin provisioning and Virtual Infrastructure 3 465

16.1 Overview of thin provisioning 466

16.2 Elements of thin provisioning 466

16.2.1 Volume-level thin provisioning 466

16.2.2 LUN-level thin provisioning 466

16.3 Setting up thin provisioning 467

16.3.1 Enabling volume-level thin provisioning 467

16.3.2 Enabling LUN-level thin provisioning 470

Chapter 17 SnapManager for Virtual Infrastructure 471

17.1 Product overview 472

17.1.1 The solution for resource utilization 472

17.1.2 Architecture overview 473

17.2 Features of SnapManager for Virtual Infrastructure 473

17.2.1 Quick installation and configuration 473

17.2.2 Improved user interface 474

17.2.3 Data layout 474

17.2.4 Granular restore options 476

17.2.5 Single wizard for creating backup jobs 478

17.2.6 Trigger scripts during the backup process 479

17.2.7 Working with NFS data stores 479

17.2.8 Other features 479

17.3 VMware ESX Server 480

17.3.1 Architecture 480

17.3.2 Storage options 481

17.3.3 VMware Tools installation and VM alignment 484

17.4 Solution components 484

17.4.1 Data ONTAP 484

17.4.2 VMware Virtual Infrastructure 485

17.4.3 SnapManager for Virtual Infrastructure 485

17.5 Installing SnapManager for Virtual Infrastructure 487

17.5.1 Preferred practices 487

17.5.2 Installing SnapManager for Virtual Infrastructure 487

17.5.3 Installing Virtual Center and SnapManager for Virtual Infrastructure on a virtual machine 492

17.5.4 Installing SnapManager for Virtual Infrastructure within a virtual machine 492

17.6 Configuring SnapManager for Virtual Infrastructure 493

17.6.1 Preferred practices 493

17.6.2 Identifying a vCenter Server 494

17.6.3 Adding N series storage systems 495

17.6.4 Configuring SnapManager for Virtual Infrastructure for shared storage 495

17.6.5 Configuring SnapManager for Virtual Infrastructure in a clustered environment (MSCS) 496

17.6.6 Confirming SnapManager for Virtual Infrastructure high availability 499

17.6.7 Distributed Resource Scheduler implications 499

17.7 SnapManager for Virtual Infrastructure in an N series MetroCluster environment 500

17.8 Backup 501

17.8.1 The backup process 502

17.8.2 Types of backup 503

17.8.3 Implications of the backup process 505

17.8.4 Scheduled backups and retention policies 506

17.8.5 Mounting a backup 507

17.9 Recovery 507

17.9.1 Types of recovery 507

17.9.2 Recovery procedures 511

17.9.3 Configuring the disaster recovery standby site 514

17.10 Restore 515

17.10.1 Restore enhancements in SnapManager 2.0 for Virtual Infrastructure 515

17.10.2 Restore process flow 516

17.10.3 Single file restore 517

17.11 Snapshots 520

17.11.1 Snapshot naming 520

17.11.2 VMware snapshots and SnapManager for Virtual Infrastructure 520

17.11.3 Serialized snapshots 521

17.11.4 Reducing the number of concurrent VMware snapshots 521

17.11.5 Reducing the amount of disk I/O 521

17.11.6 Eliminating VMware Virtual Center snapshots from the backup process 522

17.12 Scripting 522

17.12.1 Environment variables 523

Contents ix

17.12.2 Error messages 524

17.13 Sample scripts 526

17.13.1 Sample environment variables 526

17.13.2 Displaying environment variables during the backup phases 526

17.13.3 SnapVault script for SnapManager for Virtual Infrastructure 526

Appendix A Hot backup Snapshot script 529

Related publications 531

IBM Redbooks 531

Other publications 531

Online resources 532

Help from IBM 532

Index 533

© Copyright IBM Corp 2008, 2011 All rights reserved xi

Notices

This information was developed for products and services offered in the U.S.A

IBM may not offer the products, services, or features discussed in this document in other countries Consult your local IBM representative for information on the products and services currently available in your area Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used Any functionally equivalent product, program, or service that does not infringe any IBM intellectual property right may be used instead However, it is the user's responsibility to evaluate and verify the operation of any non-IBM product, program, or service

IBM may have patents or pending patent applications covering subject matter described in this document The furnishing of this document does not give you any license to these patents You can send license inquiries, in writing, to:

IBM Director of Licensing, IBM Corporation, North Castle Drive, Armonk, NY 10504-1785 U.S.A.

The following paragraph does not apply to the United Kingdom or any other country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION

PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you

This information could include technical inaccuracies or typographical errors Changes are periodically made

to the information herein; these changes will be incorporated in new editions of the publication IBM may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice

Any references in this information to non-IBM Web sites are provided for convenience only and do not in any manner serve as an endorsement of those Web sites The materials at those Web sites are not part of the materials for this IBM product and use of those Web sites is at your own risk

IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you

Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or other publicly available sources IBM has not tested those products and cannot confirm the accuracy of performance, compatibility or any other claims related to non-IBM products Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products

This information contains examples of data and reports used in daily business operations To illustrate them

as completely as possible, the examples include the names of individuals, companies, brands, and products All of these names are fictitious and any similarity to the names and addresses used by an actual business enterprise is entirely coincidental

COPYRIGHT LICENSE:

This information contains sample application programs in source language, which illustrate programming techniques on various operating platforms You may copy, modify, and distribute these sample programs in any form without payment to IBM, for the purposes of developing, using, marketing or distributing application programs conforming to the application programming interface for the operating platform for which the sample programs are written These examples have not been thoroughly tested under all conditions IBM, therefore, cannot guarantee or imply reliability, serviceability, or function of these programs

IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corporation in the United States, other countries, or both These and other IBM trademarked terms are marked on their first occurrence in this information with the appropriate symbol (® or ™), indicating US registered or common law trademarks owned by IBM at the time this information was published Such trademarks may also be registered or common law trademarks in other countries A current list of IBM trademarks is available on the Web at http://www.ibm.com/legal/copytrade.shtml

The following terms are trademarks of the International Business Machines Corporation in the United States, other countries, or both:

System x®

Tivoli®

TotalStorage®

WebSphere®

The following terms are trademarks of other companies:

ITIL is a registered trademark, and a registered community trademark of the Office of Government

Commerce, and is registered in the U.S Patent and Trademark Office

Snapshot, SecureAdmin, RAID-DP, Network Appliance, LockVault, FlexShare, FlexCache, WAFL, VFM, SyncMirror, SnapVault, SnapValidator, SnapRestore, SnapMover, SnapMirror, SnapManager, SnapLock, SnapDrive, NearStore, MultiStore, FlexVol, FlexClone, FilerView, Data ONTAP, NetApp, and the NetApp logo are trademarks or registered trademarks of NetApp, Inc in the U.S and other countries

Java, and all Java-based trademarks are trademarks of Sun Microsystems, Inc in the United States, other countries, or both

Microsoft, Windows, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both

Celeron, Intel, Intel logo, Intel Inside logo, and Intel Centrino logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries

UNIX is a registered trademark of The Open Group in the United States and other countries

Linux is a trademark of Linus Torvalds in the United States, other countries, or both

Other company, product, or service names may be trademarks or service marks of others

© Copyright IBM Corp 2008, 2011 All rights reserved xiii

Preface

This IBM® Redbooks® publication provides a basic introduction to the IBM System Storage®

N series, virtualization, and VMware It explains how to use the N series with VMware ESX Server and the benefits of doing so Examples are given on how to install and set up VMware ESX Server with the N series

This edition includes information about SnapManager® for Virtual Infrastructure, which is another N series software product that works with VMware SnapManager for Virtual Infrastructure provides local backup and recovery capability with the option to replicate backups to a remote storage system by using SnapMirror® relationships Backups can be performed on individual virtual machines or on data stores with the option of updating the SnapMirror relationship as part of the backup on a per job basis Similarly, restores can be performed at a data-store level or individual virtual machine level

IBM System Storage N series in conjunction with VMware ESX Server helps complete the virtualization hierarchy by providing both a server and storage virtualization solution Although this configuration can further assist with other areas of virtualization, networks, and

applications, these areas of virtualization are not covered in detail in this book

The team who wrote this book

This book was produced by a team of specialists from around the world working at the International Technical Support Organization (ITSO), Tucson Center

Alex Osuna is a Project Leader at the ITSO in Tucson, Arizona He writes extensively and

teaches IBM classes worldwide on all areas of IBM Tivoli® Storage Before joining the ITSO, Alex worked in Tivoli Western Region as a Principal Systems Engineer supporting Tivoli Storage Alex has over 30 years in the IT industry, focused mainly on hardware storage and software He holds certifications from IBM, Microsoft®, and Red Hat

Norm Bogard is a Senior Technical Sales Specialist with IBM Advanced Technical Support

Organization He has been supporting storage area networks (SAN) since 1996 and network-attached storage (NAS) since IBM's entry into the sector in 2001 He began his career in IT in 1984 with Intel® Corporation and came to IBM through the acquisition of Sequent Computers

Amrita Das is a Technical Marketing Engineer at Network Appliance™ Inc Their engineering

perspective has made her a valuable contributor toward the writing of this book

Ricardo Hortencio is an IT Specialist with IBM in Brazil working with administration and

supporting networks servers He joined IBM 4 years ago as system administrator, and for the last 3 years, has been working as a system administrator of a large VMware ESX

environment He holds technical certifications as a Microsoft Certified System Engineer (MCSE) and VMware Certified Professional (VCP) He also has IT Service Management (ITIL®) certification Ricardo has a Bachelor of Computer Science degree

VMware ESX terminology: A VMware ESX Server is often referred to as a VMware host

(the host), and the virtual servers running on the host are often called guests This IBM Redbooks publication follows this naming methodology

Gil Pastrana is a Software Engineer N series tester with the Systems and Technology Group

In this role, he also acts as an N series Customer Advocate and provides N series Field Support for the Systems and Technology Group He has been a Java™ Developer, performed IBM WebSphere® implementations with IBM Global Services, and worked as an N series IT Specialist with IBM Global Services Gil has a degree in electrical engineering, with a focus

on Digital Signal Processing, from the University of Washington

Vicky Rose is a Solutions Architect with IBM Global Services in Australia Over the past three

years, she has focused on developing VMware implementation solutions for Australian Federal Government clients Vicky has 5 years IT architecture experience and over 15 years

in the IT industry, with nine of those years at IBM She holds a Bachelor of Information Technology degree from the University of Canberra, Australia

Michael Slisinger is a Technical Marketing Engineer with NetApp® and is focused on server

virtualization He was a consultant with NetApp Professional Services, and has over 9 years

of experience with NetApp products Michael is the co-author of several white papers and best practices guides on integrating VMware products with NetApp storage

Roland Tretau is an Information Systems professional with IBM in Germany and has over 15

years of experience in the IT industry Roland has a solid background in project management, consulting, operating systems, storage solutions, enterprise search technologies, and data management He holds masters degrees in engineering and business and is the author of many storage-related Redbooks publications

Thanks to the following people for their contributions to this project:

Kyle Burell Sandro De Santis Rucel F Javier IBM

Emma JacobsITSO, San JoseKeith AasenJosh BonczkowskiJohn FerryLisa Haut-MikkelsenAntony JayarajYateendra KulkarniGabriel LoweNiels RekerLeo YaroslavskyNetApp

Jürgen MutzbergVMware

Bob JancerNetApp Inc

Shannon Meier IBM Systems ArchitectDave Johnson

IBM Global Technology Services

Preface xv

Now you can become a published author, too!

Here's an opportunity to spotlight your skills, grow your career, and become a published author—all at the same time! Join an ITSO residency project and help write a book in your area of expertise, while honing your experience using leading-edge technologies Your efforts will help to increase product acceptance and customer satisfaction, as you expand your network of technical contacts and relationships Residencies run from two to six weeks in length, and you can participate either in person or as a remote resident working from your home base

Find out more about the residency program, browse the residency index, and apply online at:

ibm.com/redbooks/residencies.html

Comments welcome

Your comments are important to us!

We want our books to be as helpful as possible Send us your comments about this book or other IBM Redbooks in one of the following ways:

򐂰 Use the online Contact us review Redbooks form found at:

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򐂰 Send your comments in an e-mail to:

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򐂰 Mail your comments to:

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Stay connected to IBM Redbooks

© Copyright IBM Corp 2008, 2011 All rights reserved xvii

Summary of changes

This section describes the technical changes made in this edition of the book and in previous editions This edition might also include minor corrections and editorial changes that are not identified

Summary of Changesfor SG24-7636-01

for IBM System Storage N series with VMware ESX Server

as created or updated on April 12, 2011

April 2011, Second Edition

This revision reflects the addition, deletion, or modification of new and changed information described below

New information

We added the following updates to this Redbooks publication:

򐂰 Updated Chapter 1, “Introduction to IBM System Storage N series” on page 1, with the latest model and feature information

򐂰 Added Chapter 17, “SnapManager for Virtual Infrastructure” on page 471, on the introduction, planning, and setup of SnapManager for Virtual Infrastructure

򐂰 Introduced IBM Real-time Compression solutions where joined with N series deduplication provides ever more space savings

© Copyright IBM Corp 2008, 2011 All rights reserved 1

Storage N series

The IBM System Storage N series offers an additional choice for organizations that are facing the challenges of enterprise data management The IBM System Storage N series delivers high-end value with midrange affordability Built-in enterprise serviceability and manageability features help to support customer efforts to increase reliability, simplify and unify storage infrastructure and maintenance, and deliver exceptional economy

This chapter introduces the IBM System Storage N series and includes the following topics:

򐂰 Product overview

򐂰 N series hardware

򐂰 N series standard software features

򐂰 Optional software

򐂰 Performance Accelerator Module

򐂰 N series unified storage systems

򐂰 IBM System Storage N series Gateways

򐂰 N series expansion units

1

1.1 Product overview

The IBM System Storage N series portfolio (Figure 1-1) provides a range of reliable, scalable storage solutions for various storage requirements These capabilities are achieved by using network access protocols, such as Network File System (NFS), Common Internet File System (CIFS), HTTP, and iSCSI, and storage area network (SAN) technologies such as Fibre Channel (FC) By using built-in Redundant Array of Independent Disks (RAID) technologies, all data is well protected, with options to enhance protection through mirroring, replication, snapshots, and backup These storage systems are also characterized by simple management interfaces that make installation, administration, and troubleshooting

straightforward

Figure 1-1 N series portfolio

With this type of flexible storage solution, you can perform the following tasks:

򐂰 Tune the storage environment to a specific application while maintaining flexibility to increase, decrease, or change access methods with minimal disruption

򐂰 React easily and quickly to changing storage requirements If additional storage is required, you can expand it quickly and non-disruptively If existing storage is deployed incorrectly, you can reallocate available storage from one application to another quickly and simply

򐂰 Maintain availability and productivity during upgrades If outages are necessary, they can

be kept to the shortest time possible

򐂰 Create effortless backup and recovery solutions that operate in a common manner across all data access methods

򐂰 Simplify your infrastructure with file- and block-level services in a single system

Chapter 1 Introduction to IBM System Storage N series 3

򐂰 Tune the storage environment to a specific application while maintaining its availability and flexibility

򐂰 Change the deployment of storage resources non-disruptively, easily, and quickly Online storage resource redeployment is possible

򐂰 Easily and quickly implement the upgrade process Non-disruptive upgrade is possible

򐂰 Achieve strong data protection solutions with support for online backup and recovery

򐂰 Include added value features, such as N series deduplication and IBM Real-time Compression, to optimize space management

All N series storage systems use a single operating system across the entire platform They offer a combination of multiple advanced function software features that provide one of the most multifaceted storage platforms in the industry Such features include comprehensive system management, storage management, onboard copy services, virtualization

technologies, and disaster recovery and backup solutions

1.2 N series hardware

This topic provides information about the N series models that are available at the time of this writing Table 1-1 identifies all the N series models released by IBM to date that belong to the N3000, N6000, and N7000 series

Table 1-1 IBM System Storage N series storage systems

A1X and A2X models Maximum drives Maximum raw capacity in TB a

1.2.1 Maximum number of network interfaces

Beginning with Data ONTAP 7.3, storage systems, except for the smallest models, are no longer limited to 128 interfaces per storage system Larger storage systems can

accommodate from 256 to 1,024 network interfaces per system depending on the memory of the system and whether they are in a clustered, active/active configuration

To determine your storage system memory, run the sysconfig command and refer to the memory size field that is displayed for the slot 0 system board of your storage system.Table 1-2 shows the new maximum number of network interfaces that are allowed for each system The total number of interfaces can include physical, Virtual Interface (VIF), virtual local area network (VLAN), vh, and loopback interfaces

Table 1-2 N series Gateway models

Using 2 TB SATA drives lowers the maximum spindle count The number of physical interfaces depends on the storage system model Up to 16 VIFs can be supported by each storage system The maximum number of VLANs that can be supported equals the maximum number of network interfaces shown in Table 1-3 minus the total number of physical

interfaces, VIFs, vh, and loopback interfaces that are supported by the storage system

Table 1-3 Storage system memory and maximum number of interfaces

a The more dense disk drive available is the 2 TB 7200 RPM Serial Advanced Technology tachment (SATA) Systems running Data ONTAP® 7.3.x It can assign no more than seven

At-2 TB data disk drives to an aggregate because of maximum aggregate size limitations Theselimitations do not include disks that are used for aggregate RAID parity or hot spares Alsoalthough you can populate the N series with the maximum disks allowed with 2 TB disks, themaximum capacity allowed does not increase The 2 TB SATA drives have a lower maximumnumber of spindles

b Single node model is no longer available

c This model has been withdrawn

d The N6000 model series also acts as a gateway with Data ONTAP 7.3 and later

G1X and G2X models Maximum capacity

Chapter 1 Introduction to IBM System Storage N series 5

1.2.2 N series A model and G model features

Table 1-4 provides an overview of the features of N series A models

Table 1-4 A model hardware features

Table 1-5 provides an overview of the features of N series G models

Table 1-5 N series G model features

1.2.3 Hardware quick reference for N series A and G models

Table 1-6 provides a quick reference to N series A and G model hardware

Table 1-6 Storage system reference

Serial Attached SCSI (SAS)

disk drives

15K RPM - 300 GB, 450 GB, 600 GB (SAS drives)7.2K RPM 500 GB, 1 TB, 2 TB (SATA drives)

Expansion units supported EXN1000 (SATA), EXN2000 (FC 2 Gbps), EXN4000 (FC 4 Gbps), EXN3000 (SAS 3

Gbps)a

a EXN3000 supports only SAS drives and 500 GB, 1 TB, and 2 TB SATA drives

Maximum number of logical unit numbers (LUNs) on back-end disk

storage array

Maximum volume size in TBa

a Also check possible operating system LUN size dependencies

1.3 N series standard software features

The following standard software features are available at no charge with IBM System Storage N series storage systems:

Data ONTAP Operating system software that optimizes data serving and allows

multiple protocol data access

File Transfer Protocol (FTP)

A standard Internet protocol that provides a simple way to exchange files between computers on the Internet

Telnet A protocol that provides a general, bidirectional communications

facility It provides user-oriented command-line login sessions between hosts

Snapshot™ Enables online backups, providing near instantaneous access to

previous versions of data without requiring complete, separate copies

FlexVol® Creates multiple flexible volumes on a large pool of disks and provides

dynamic, nondisruptive (thin) storage provisioning, achieving space and time efficiency These flexible volumes can span multiple physical volumes without regard to size

FlexShare™ Enables administrators to take advantage of existing infrastructure and

increase processing utilization without sacrificing the performance of critical business needs With FlexShare, administrators can confidently consolidate different applications and data sets on a single storage system and can prioritize applications based on how critical they are to the business

Disk sanitization The process of physically obliterating data by overwriting disks with

specified byte patterns or random data in a manner that prevents

PCI

expansion

slots per node

2U for two nodes

4U for two nodes

6U for two nodes

6U for two nodes

6U for two nodes

Processors

(A1X)

One 2.2 GHz Mobile Celeron®

One 1.66 GHz Intel DUal Core Xeon

One 2.2 GHz Mobile Celeron

2.4 GHz AMD dual-core 64-bit Opteron

Two 2.6 GHz AMD dual-core 64-bit Opteron

Two 2.6 GHz AMD dual-core 64-bit Opteron

Two 2.6 GHz AMD dual-core Opteron

Four 2.6 GHz AMD dual-core Opteron

Processors

(A2X)

Two 2.2 GHz Mobile Celeron

Two 1.66 GHz Intel Dual-core Xeon

Two 2.2 GHz Mobile Celeron

Two 2.4 GHz AMD dual-core 64-bit Opteron

Four 2.6 GHz AMD dual-core 64-bit Opteron

Four 2.6 GHz AMD dual-core 64-bit Opteron

Four 2.6 GHz AMD dual-core Opteron

Eight 2.6 GHz AMD dual-core Opteron

Chapter 1 Introduction to IBM System Storage N series 7

recovery of current data by any known recovery methods This feature enables you to carry out disk sanitization by using three successive byte overwrite patterns per cycle By default, six cycles are performed

FilerView® Allows IT administrators to fully manage N series storage systems

from remote locations It provides simple and intuitive web-based single-appliance administration

SnapMover® Migrates data among N series clusters with no impact on data

availability and no disruption to users

AutoSupport A sophisticated, event-driven logging agent featured in the Data

ONTAP operating software and inside each N series system It continuously monitors the health of your system and issues alerts if a problem is detected These alerts can also be in the form of email

SecureAdmin™ This Data ONTAP module enables authenticated, command-based

administrative sessions between an administrative user and Data ONTAP over an intranet or the Internet

Domain Name System (DNS)

The N series supports using a host naming file or a specified DNS server and domain

Network Information Service (NIS)

The N series provides NIS client support and can participate in NIS domain authentication

Integrated automatic Redundant Array of Independent Disks (RAID) manager

The IBM System Storage N series and Data ONTAP provide integrated RAID management with RAID-Double Parity (default) and RAID 4

iSCSI Host Attach Kit for AIX®, Windows®, Linux®

Includes support software and documentation for connecting a supported host to an iSCSI network The support software includes programs that display information about storage and programs to collect information needed by customer support to diagnose problems

Systems Manager Provides comprehensive management of one or more N series

storage systems by way of a simple, easy-to-use, intuitive GUI

SyncMirror® The synchronous mirror of a volume that maintains a strict physical

separation between the two copies of your mirrored data In case of an error in one copy, the data is still accessible without any manual intervention

Open System SnapVault® (OSSV) software

Enables Windows, UNIX®, and Linux servers to take advantage of the

N series Snapshot processes (for example, block-level incremental backups) to reduce the amount of backup data flowing over the WAN while maintaining data integrity and recoverability

NearStore® option Provides enhanced performance in a disk-based, auxiliary storage

device used for enterprise applications

N series Deduplication

Significantly improves physical storage efficiency and network efficiency by enabling the sharing of duplicate data blocks N series Deduplication provides a data-deduplication solution native to

N series

1.4 Optional software

The following optional, chargeable software features are available for the IBM System Storage N series:

Common Internet File System (CIFS)

Provides file system access for Microsoft Windows environments

NFS Provides file system access for UNIX and Linux environments

Hypertext Transfer Protocol (HTTP)

Allows a user to transfer displayable web pages and related files

FlexCache™ for NFS Provides efficient caching of files and volumes in a local N series

storage system when the source volume resides in a remote location

N series storage system Help to avoid inefficient use of bandwidth resources

FlexClone® Provides instant replication of data volumes and sets without requiring

additional storage space at the time of creation

FlexScale Used exclusively to improve performance by managing the additional

cache provided by Performance Accelerator Modules (PAMs) These modules can be added as an option to an N series storage system

MultiStore® Permits an enterprise to consolidate a large number of Linux, UNIX, or

Windows file servers onto a single storage system Placing many virtual N series storage systems on one physical appliance eases migration and multi-domain failover scenarios

SnapLock® Provides nonerasable and nonrewritable data protection that helps

enable compliance with government and industry records retention regulations SnapLock is not available in Data ONTAP 7.3.0, but is available starting in Data ONTAP 7.3.1

SnapMirror Remote mirroring software that provides automatic block-level

incremental file system replication between sites It is available in synchronous, asynchronous, and semi-synchronous modes of operation

SnapRestore® Allows rapid restoration of the file system to an earlier point in time,

typically within a few seconds

SnapVault Provides disk-based backup for N series systems by periodically

backing up a Snapshot copy to another system

SnapDrive® Enables Windows and UNIX applications to access storage resources

on N series storage systems, which are presented to the Windows

2000 or later operation system as locally attached disks For UNIX, you can create storage on N series storage systems in the form of LUNs, file systems, logical volumes, or disk groups

Snapshot copy: A Snapshot copy is a locally retained

point-in-time image of data It is a “frozen,” read-only view of a volume that provides easy access to old versions of files, directory hierarchies, and LUNs

Chapter 1 Introduction to IBM System Storage N series 9

SnapManager Host software for managing snapshots for backup and restore

operations Versions are available that integrate easily with critical applications, such as the following examples:

– SnapManager for MS Exchange– SnapManager for SQLServer – SnapManager for MS SharePoint – SnapManager for Oracle

– SnapManager for SAP – SnapManager for Virtual Infrastructure, which automates and simplifies backup and recovery of primary storage used by VMware Virtual Infrastructure

– SnapManager for Microsoft Hyper-V

SnapValidator® For Oracle deployments, provides an additional layer of integrity

checking between the application and N series storage SnapValidator allows Oracle to create checksums on data transmitted to N series storage for writes to disk and include the checksum as part of the transmission

Single Mailbox Recovery for Exchange (SMBR)

A software option from SnapManager that takes near-instantaneous online backups of Microsoft Exchange databases, verifies that the backups are consistent, and rapidly recovers Exchange within levels (storage group, database, folder, single mailbox, or single message) The potential results are improved service to internal clients, reduced infrastructure expenses, and significant time savings for Exchange administrators

Operations Manager, File Storage Resource Manager (FSRM) feature

Provides monitoring and management of storage resources, including applications, files, file systems, and networks

Operations Manager Core

Provides remote, centralized management of IBM System Storage N series data storage infrastructure, including global enterprise, storage network, and so on

Provisioning Manager

Allows IT administrators to enter set provisioning policies, automate complex provisioning processes, check policy conformance, and pool storage resources for higher utilization Server administrators can provision storage within the confines set by the storage administrator

MetroCluster Provides an enterprise solution for high availability over wide area

networks (WANs) between two clustered nodes of a single N series storage system

Virtual File Manager (VFM®)

A comprehensive solution for managing unstructured file data It provides data management functionality for server and storage consolidation, migration, remote office data management, and disaster recovery features, all while avoiding disruption to users It provides all

of this functionality through automated policy-based data management using a global namespace

Cluster failover (CFO)

Ensures high data availability for business-critical requirements by eliminating a single point of failure It must be ordered for A2X

clustered configurations or upgrades from A1X to A2X Its active/active pairing delivers even more “nines to the right of the decimal point.”

1.5 Performance Accelerator Module

The performance of a disk system is heavily dependent on disk count and on the RPM of each disk Although a greater disk count and higher RPMs provide better performance, they also increase the power consumption and space usage in the data center The Performance Accelerator Module has been introduced for the N6000, and N7000 series as a means of improving performance by adding modules with additional cache memory

Each PAM currently consists of the following flash memory:

򐂰 256 GB of SLC flash memory per module (PAM II)

򐂰 512 GB of SLC flash memory per module (PAM II)

It is possible to add more than one PAM to an N series storage system PAMs can be configured to operate in three modes:

򐂰 Mode 1: Behaves more like main memory

򐂰 Mode 2: Preferentially caches metadata

򐂰 Mode 3: Caches that otherwise might have been flushed

By using tools based on predictive cache statistics, you can determine the optimal settings and the number of modules to deploy

PAMs are available as optional adapters in N5000, N6000, and N7000 N series systems When including PAMs, you must add the FlexScale licensed software

PAM II cards are available for N6070 and N7000 systems

1.6 N series unified storage systems

The IBM System Storage N series storage systems offer multiprotocol connectivity by using internal storage or storage provided by expansion units (Figure 1-2 on page 11) The N series systems are designed to provide integrated block-level and file-level data access, allowing concurrent operation in IP SAN (iSCSI), FC SAN, NFS, and CIFS environments Other storage vendors might require the operation of multiple systems to provide this functionality N series storage systems are designed to avoid costly downtime, both planned and unplanned, and improve your access to important data, helping you gain a competitive advantage

Chapter 1 Introduction to IBM System Storage N series 11

Figure 1-2 IBM System Storage N series A models

The N series is a specialized, thin server storage system with a customized operating system, similar to a stripped-down UNIX kernel, referred to as Data ONTAP With this customized operating system, many of the server operating system functions that you are familiar with are not supported Data ONTAP improves performance and reduces costs by eliminating

unnecessary functions that do not pertain to a storage system

N series units come with preconfigured software and hardware, and with no monitor or keyboard for user access, which is commonly called a headless system A storage

administrator accesses the systems and manages the disk resources from a remote console

by using a web browser or command line

A typical characteristic of an N series storage systems product is its ability to be installed rapidly, using minimal time and effort to configure the system The N series product is integrated seamlessly into the network, making it especially attractive when time and skills are limited in the organization of the customer

Drive flexibility

IBM System Storage N series products provide network-attached storage (NAS) for

environments where customers must use their storage investment in a multifaceted

environment N series storage systems provide customers with a tremendous amount of versatility because they allow the solution to be populated with Fibre Channel, SAS disk drives, and SATA disk drives An N series populated with Fibre Channel or SAS disk drives, or both, might be suitable for important, high performance, data transaction environments An N series populated with SATA disk drives might be attractive to customers who want to use the platform for disk-to-disk backup scenarios or disaster recovery scenarios These customers might also want to use this platform for archive data or data-type home directories that do not have the demands of high performance transactional environments

Table 1-7 identifies the appropriate drive types to satisfy various requirements.

Table 1-7 Drive positioning

Near-line storage

IBM System Storage N series with SATA drives offers near-line storage Figure 1-3 shows an example of traditional disk-based backup and recovery The left side shows the primary storage characterized by a higher cost and fast performing system On the far right side, the archive targets are represented traditionally by tape or optical jukeboxes The N series secondary with SATA drives reduces access times to read and write data In the middle, the concept of near-line storage for disk staging enables organizations to do daily backups to disk

Additionally, backups to tape can be done weekly or bi-weekly, reducing the amount of data that must be written to tape Moreover, data that is online is available for faster recovery Another advantage is that this architecture uses your existing investment in primary storage, your backup application, and tape libraries

Figure 1-3 Near-line storage

drives

SAS drives

SATA drives

Online, high-performance, mission-critical production data repository

Near-line storage used for tiered storage or infrequently accessed data

Data retention to help meet the needs of customers required

to store data in non-erasable and non-rewritable (WORM) formats

Chapter 1 Introduction to IBM System Storage N series 13

1.6.1 IBM System Storage N3000

N3000 systems provide primary and auxiliary storage for midsize enterprises IT administrators can consolidate fragmented application-based storage and unstructured data into one unified, easily managed, expandable platform N3000 systems offer integrated block-level and file-level data access, intelligent management software, and data protection capabilities (similar to those offered in higher-end N series systems) in a cost-effective package N series innovations include SAS disk drive support, expandable I/O connectivity, and onboard remote management

The N3000 systems are designed as the entry point to the entire N series family These systems can provide the following key advantages:

򐂰 High availability that takes advantage of proven features, including a high performing and scalable operating system, data management software, and redundancy features

򐂰 Backup and recovery features that support disk-based backup, with file- or application-level recovery with Snapshot and SnapRestore software features

򐂰 Simple replication and disaster recovery that provide an easy-to-deploy mirroring solution that is highly tolerant of WAN interruptions

򐂰 Management simplicity so that self-diagnosing systems can enable on-the-fly provisioning

򐂰 Versatile, single, integrated architecture that supports concurrent block I/O and file serving over Ethernet and Fibre Channel SAN infrastructures

The N3000 series is compatible with the entire family of N series unified storage systems These systems feature a comprehensive lineup of hardware and software to address various possible deployment environments:

򐂰 N3300– 2859-A10 Single Node– 2859-A20 Clustered

򐂰 N3400– 2859-A11 Single Node– 2859-A21 Clustered

򐂰 N3600– 2862-A20 ClusteredThe N3000 series supports Ethernet and Fibre Channel environments, enabling economical NAS, FC, and iSCSI deployments The N3000 system functions as a unification engine, which so that you can simultaneously serve both file-level and block-level data across a single

or multiple networks Some solutions require multiple separately managed systems

N3000 storage systems can offer significant advantages for distributed enterprises with remote and branch office sites These organizations and others can use the SnapVault and SnapMirror software functions to implement a cost-effective data protection strategy by mirroring data to a central corporate data center

No additional PCI adapter slots are in the N3300 storage system The N3600 storage system has one available PCIe adapter slot per node For an A20 model, identical adapters must be added in pairs, one to each node, so that both nodes are populated with identical types of PCIe adapters

N3300 and N3600

The N3300 and N3600 systems (Figure 1-4 and Figure 1-5) provide multiple I/O connectivity options and a small footprint to hold high-density SAS drives These systems also provide external expansion using either low-cost SATA drives or Fibre Channel disks for production applications while using Snapshot technology from Data ONTAP SAS is the next generation

of SCSI, which combines the advantages of parallel SCSI and serial FC For further systems administration time and cost advantages, the systems come standard with Remote Onboard Management capabilities to simplify remote system monitoring For example, these

capabilities make it easier to manage cycle power, execute firmware upgrades, enter console commands, and run diagnostic tests to maintain the reliability of the system and

business-critical data

Figure 1-4 N3300

Figure 1-5 N3600

Figure 1-6 shows the rear view of the N3300, and Figure 1-7 on page 15 show the rear view

of the N3600 The single node models (A10) use a single control unit, and the dual-node clustered models (A20) use two control units

Figure 1-6 N3300 rear view

Chapter 1 Introduction to IBM System Storage N series 15

Figure 1-7 N3600 rear view

The N3300 is a 2U-high device with capacity for 12 internal SAS drive bays It supports up to two external disk expansion units Each controller has dual gigabit Ethernet ports, dual

4 Gbps Fibre Channel ports one console port, and one remote management port as identified

in Figure 1-8

Figure 1-8 External ports on N3300

Tip: The N3300 series supports SAS, FC, and SATA disk technologies The N3300

controller chassis supports from 6 to 12 SAS or SATA disk drives All disks must be of the same type The N3300 controller chassis can be configured with 0 disk drives and storage

in disk expansion units such as EXN1000/SATA or EXN4000/FC

The N3600 has redundant power supplies as shown in Figure 1-9

Figure 1-9 N3600 power supplies and expansion slot

The N3600 is a 4U-high device with capacity for 20 internal SAS drive bays The N3600 can support up to six external disk expansion units Each controller has dual gigabit Ethernet ports and dual 4 Gbps Fibre Channel ports as shown in Figure 1-10 Each node within the N3600 also has one console port, one remote management port, and one PCIe slot on each controller for an expansion card

Figure 1-10 External ports on N3600

The N3300/N3600 has the following key specifications:

򐂰 2U high (N3300) or 4U high (N3600)

򐂰 Up to four external disk expansion units for N3300 and up to six external disk expansion units for N3600

򐂰 High-performance SAS infrastructure

Tip: The N3600 series supports SAS, FC, and SATA disk technologies The controller

chassis supports either 20 SAS or 20 SATA disk drives The N3600 requires a minimum of six SAS drives in the controller chassis

Chapter 1 Introduction to IBM System Storage N series 17

򐂰 Single controller or dual controller (for high availability)

򐂰 Unified storage: iSCSI, NAS, Fibre Channel

򐂰 Each controller: Dual gigabit Ethernet ports and dual 4 Gbps Fibre Channel ports

򐂰 Onboard remote platform management

򐂰 Internal SAS drive bays

The N3000 series is a small form-factor appliance that conserves valuable space in data centers or remote office locations It is engineered for small to medium-sized enterprises

controller support for SAS or SATA drives, expandable I/O connectivity, and onboard remote management

The new N3400 series can scale up to 24 TB of internal raw capacity and increase total raw capacity to 104 TB Using 2 TB SATA drives will lower the maximum drive count in the system.Figure 1-11 shows the front views of the N3400 controller modules, and Figure 1-12 on page 18 shows the back views of the N3400 controller module In the rear panel, both clustered controllers and stand-alone controller options are available

Figure 1-11 Front views of 3400 controller modules

N3400 is a 2U box with the capability to host up to 12 drives in the controller enclosure If more capacity is needed, the N3400 can be attached to external EXN1000 and EXN4000 units with SATA and FC drives It is also possible to connect the controllers to the new EXN3000 shelf

Power Fault Controller A

Controller B

Figure 1-12 Back views of the N3400 showing a comparison of N3400 configurations

The N3400 has one SAS expansion port per controller with one Alternate Control Path (ACP)

If you must attach the EXN3000 shelf to the controller, you can configure the shelf ACP during the setup process By configuring the ACP, Data ONTAP can manage the EXN3000 on a separate network to increase availability and stability Figure 1-13 shows the ACP

Figure 1-13 N 3400 communication ports

The N3400 has the following key specifications:

򐂰 2U high

򐂰 Up to eight external EXN1000, EXN4000 expansion units (up to 6 in stack)

򐂰 High-performance SAS infrastructure

򐂰 Single controller or dual controller (for high availability)

򐂰 Unified storage: iSCSI, NAS, Fibre Channel

򐂰 Each controller: Up to 8 gigabit Ethernet ports and two dual 4 Gbps Fibre Channel ports

򐂰 Onboard remote platform management

򐂰 Internal SAS drive bays

N3400 (Active –Active)

N3400 (Standard)

– FC (SFP)*

– SAS (QSFP) – Console – ACP – Remote Management – GbE

Remote Management

Gb Ethernet (4x)Console

Chapter 1 Introduction to IBM System Storage N series 19

Starting from SAS firmware 0500, you can perform a Non Disruptive Update (NDU) so that disk I/Os are uninterrupted while SAS firmware is being updated

N3000 family summary

Table 1-8 summarizes the specifications for the N3000 family

Table 1-8 N3000 family specifications.

N3300 series N3300 series N3400 series N3400 series N3600 series

SATA: 500 GB, 7,200 rpm; 1 TB,

2 TB

SAS: 300 GB, 450 GB, 600 GB 15,000 rpm

SATA: 500 GB, 7,200 rpm; 1 TB,

2 TB

SAS: 300 GB, 450 GB,

600 GB, 15,000 rpmSATA: 500 GB, 7,200 rpm;

1 TB, 2 TBDisk expansion

• 2 Gbps Fibre Channel: 300

GB, 450 GB, 600 GB, 15,000 rpm

EXN3000 - SAS Disk Storage Expansion Unit:

• SAS: 300 GB, 450 GB, 600

GB, 15,000 rpm

• SATA: 500 GB, 7,200 rpm; 1

TB, 2 TBEXN1000 - SATA Disk Storage Expansion Unit:

• SAS: 300 GB, 450 GB,

600 GB, 15,000 rpm

• SATA: 500 GB, 7,200 rpm; 1 TB

EXN1000:

• SATA: 500 GB, 7,200 rpm; 1 TB, 2 TB

1.6.2 IBM System Storage N5000

The N5300 and N5600 are suitable for environments that demand data in high availability, high capacity, and highly secure data storage solutions The IBM System Storage N5000 series offers additional choices to organizations for enterprise data management The N5000 series delivers midrange to high-end enterprise storage and data management value with midrange affordability Built-in enterprise serviceability and manageability features help support your efforts to increase reliability, simplify and unify storage infrastructure and maintenance, and deliver exceptional economy

The IBM N5000 A series comes in two models:

򐂰 N5300 – 2869-A10 Single Node– 2869-A20 Clustered

򐂰 N5600– 2868 -A10 Single Node– 2868 -A20 ClusteredN5000 models can be configured for FC or SATA, or both

N5000 models are no longer orderable

The N5000 A10 models come in a compact 3U rack-mountable unit that can coexist in the same rack as an EXN1000, EXN2000, or EXN4000 storage expansion unit The A20 models require 6U of space The easily accessible rear of the N5000 series provides I/O connectivity and power supply access and status indications (Figure 1-14)

Figure 1-14 Rear view of the N5600 and N5300

The N5600 and N5300 also use a Basic Input/Output System (BIOS) prompt upon boot rather than a Common Firmware Environment (CFE) prompt