Simple Distributed Configurations for 3000-50000 Mailboxesf

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Microsoft Exchange

2010 on Dell SystemsSimple Distributed Configurations

Solutions for3,000 to 50,000

Mailboxes



Dell

Microsoft Exchange 2010 on Dell Systems: Simple Distributed Configurations ii

This document is for informational purposes only. Dell reserves the right to make changes withoutfurther notice to any products herein. The content provided is as is and without express or impliedwarranties of any kind.

Dell, the DELL logo, and the DELL badge, PowerEdge, and PowerVault, are trademarks of Dell Inc.Microsoft is a registered trademark of Microsoft Corporation in the United States and/or othercountries. Other trademarks and trade names may be used in this document to refer to either theentities claiming the marks and names or their products. Dell disclaims proprietary interest in the

marks and names of others.

©Copyright 2010 Dell Inc. All rights reserved. Reproduction or translation of any part of this workbeyond that permitted by U.S. copyright laws without the written permission of Dell Inc. is unlawfuland strictly forbidden.

November 2010





Dell

Microsoft Exchange 2010 on Dell Systems: Simple Distributed Configurations 4

1 Introduction

1.1 Overview

This Microsoft® Exchange 2010 solution architecture manual contains possible configurations that canbe used to architect your Exchange 2010 infrastructure. Samples in the manual are intended to serveas a blueprint or example for organizations whose requirements are similar. Each organization’srequirements can differ significantly, though, and include items not accounted for in theseconfigurations (e.g. message hygiene or third party archiving). For a configuration sized to yourspecific requirements, please contact your Dell representative or use the Dell Exchange 2010 Advisortool at Dell.com/Exchange.

1.2 Finding Your Solution

Sample configurations for Microsoft Exchange on Dell server and storage hardware are provided inthree manuals available from the Dell.com/Exchange landing page to help you find an appropriatesolution for your needs. The three documents, which correspond to the three Dell Exchange 2010architecture models, each contain multiple configurations of varying sizes, requirements andhardware choices.

Small and Branch Office Model: Configurations ideal for small and branch offices with up to1,000 mailboxes.

Simple Distributed Model (this manual): Configurations that are streamlined, dedicated toExchange, use internal server storage or direct-attached storage (DAS) and take the mostadvantage of the new high availability (HA) and replication features of Exchange 2010.

Agile Consolidated Model: Configurations optimized for a shared, consolidated, and possiblevirtualized infrastructure.

1.3 About the Simple Distributed Model

These configurations have been designed for larger organizations (1000+ mailboxes) primarily

interested in simplicity and ease of management. The model leverages the high-availability anddisaster recovery features native to Exchange Server 2010 to help deliver robust, highly availableExchange environments in a simple, cost-effective manner. In particular, the simple distributedmodel utilizes all-in-one server and storage “bricks” that can be combined to cost-effectively deliverperformance and high availability. A brick can be either a single storage-dense rack server such asthe Dell™ PowerEdge™ R510 or a rack server such as the R710 combined with direct attached storage(DAS) such as the Dell PowerVault™ MD1200 enclosure.

1.4 Hardware

Sample solutions described in this manual use the following Dell equipment:

PowerEdge R510

PowerEdge R710

PowerEdge R715

PowerVault MD1000

PowerVault MD1200

Click on the links to the product landing pages for additional information on each product.

http://www.dell.com/content/topics/topic.aspx/global/shared/sitelets/solutions/messaging/en/exchange_2010?c=us&cs=555&l=en&s=biz






http://www.dell.com/us/business/p/poweredge-r510/pd?refid=poweredge-r510


http://www.dell.com/us/business/p/poweredge-r710/pd?refid=server-poweredge-r710




http://www.dell.com/us/business/p/powervault-md1000/pd?refid=pvaul_md1000


http://www.dell.com/us/business/p/powervault-md1200/pd?refid=powervault-md1200











Dell


2 3,000 Mailboxes on PowerEdge R510

2.1 Solution Requirements

Number of mailboxes 3,000

Average user I/O profile (messages/day) .14 IOPS (~150 messages per day)

Average mailbox size limit 4GB

Total active/passive copies per database 3

Not included in this solution Backup and recovery infrastructure

Site resiliency

UM and Edge roles

2.2 Recommended Solution

Server Configurations Detail

All-in-one (Mailbox/Hub/CAS) server 3x PowerEdge R510 servers with 14 drives each

2x quad-core processors and 48GB RAM

Number of DAGs 1

Servers per DAG 3

Number of Active and Passive Mailboxesper Server

1,000 active and 2,000 passive

Storage Configuration Detail

Storage hardware 3x PowerEdge R510 servers’ internal storage

14x drives each (2 for OS); 36 data drives total

Data volumes per mailbox server 12

Databases per volume 1

Mailboxes per database 250

Disk type 3.5” NL-SAS 7.2K rpm 2TB

RAID type RAID 0 (1 volume per drive)

Additional details Databases and logs combined

1 database and log set per drive

25% estimate additional capacity for growth

128 KB element size or larger



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2.3 Architecture Diagram



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3 5,000 Mailboxes on PowerEdge R710 with PowerVault MD1000



Average user I/O profile (messages/day) .1 IOPS (~100 messages per day)




Site resiliency

UM and Edge roles



All-in-one (Mailbox/Hub/CAS) server 3x PowerEdge R710 servers


Number of DAGs 1

Servers per DAG 3


1667 active and 3333 passive


Storage hardware 6x PowerVault MD1000 enclosures (2x per server)

15x drives each; 90 drives total




Disk type 3 x 3.5" 7.2K rpm NL-SAS 1 TB per data volume and

1 x 3.5" 7.2K rpm NL-SAS 1 TB per log volume

RAID type RAID 0

Additional details Databases and logs seperate

18% estimated capacity for growth

NTFS allocation unit size = 64KB

RAID stripe or element size = 256KB

Up to 6x hot spares per server



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5 10,000 Mailboxes on PowerEdge R715 with PowerVault MD1200



Average user I/O profile (messages/day) 0.15 IOPs per user (~150 messages/day)




UM and Edge Roles



All-in-one (Mailbox/Hub/CAS) server 3x PowerEdge R715 servers

2x AMD OpteronTM 12-core processors per server

128 GB of DDR3 Memory

Number of DAGs 1

Servers per DAG 3


3360 Active + 6720 Passive Mailboxes


Storage hardware 9x PowerVault MD1200 enclosures (3 per server)12x 3.5" NL-SAS 2 TB Disks per enclosure

108 drives total

Database volumes per mailbox server 36Databases per volume 1

Mailboxes per database 280 Mailboxes

Disk type 3.5" NL-SAS 2 TB

RAID type RAID-0

Additional details Data and Logs combined on each volume

Each HDD carries one active or passive copy in a RAID 0with one database and log set per HDD

30% estimate additional storage space available

RAID stripe or element size = 128 KB or larger

NTFS Allocation unit size = 64KB for both DB and Log



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Average user I/O profile (messages/day) .11 (~100 messages per day) for 18,000 users.14 IOPS (~160 messages per day) for 7,000 users




Site resiliency

UM and Edge roles


Server Configurations DetailAll-in-one (Mailbox/Hub/CAS) server 16x PowerEdge R510 servers w/ 14 HDDs each


Number of DAGs 1

Servers per DAG 16


1563 active and 3124 passive


Storage hardware 16x PowerEdge R510 servers’ internal drives

14x drives each (2 for OS); 192 data drives total




Disk type 3.5” 7.2K rpm NL-SAS 2TB

RAID type RAID 0 (1 volume per physical disk)

Additional details Database and logs combined

1x database and log set per disk

15% estimated additional capacity for growth

Stripe or element size = 128KB or larger






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Average user I/O profile (messages/day) .11 IOPS (~100 messages per day) for 35,000 users

.14 IOPS (~160 messages per day) for 15,000 users


Total active/passive copies per database 5 (3x local and 2x remote)


UM and Edge roles



All-in-one (Mailbox/Hub/CAS) server 55x PowerEdge R510 servers w/ 14 HDDs (33x local and 22xremote)

2x quad-core processors and 64GB

Number of DAGs 4

Servers per DAG 14


Local servers: 1516 active and 3032 passive

Remote servers: 4546 passive


Storage hardware 55x PowerEdge R510 servers’ internal storage

14x drives per server (2 for OS); 660 data drives total




Disk type 3.5” 7.2K rpm NL-SAS 2TB

RAID type RAID 0 (1 volume per physical disk)

Additional details Database and logs combined

1x database and log set per disk

15% estimated additional capacity for growth

RAID stripe or element size = 128KB




Dell



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