Disaster Recovery Simplified: EqualLogic iSCSI SAN and...

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Disaster Recovery Simplified: EqualLogic iSCSI SAN and VMware Site Recovery Manager Deliver Results Alvin Kho November 2007

Transcript of Disaster Recovery Simplified: EqualLogic iSCSI SAN and...

Page 1: Disaster Recovery Simplified: EqualLogic iSCSI SAN and ...download3.vmware.com/elq/pdf/1422-Track-1-2-EquaLogic.pdf · Sample of EqualLogic / VMware Customers Rapid Customer Adoption

Disaster Recovery Simplified: EqualLogic iSCSI SAN and VMware Site Recovery Manager Deliver Results

Alvin Kho

November 2007

Page 2: Disaster Recovery Simplified: EqualLogic iSCSI SAN and ...download3.vmware.com/elq/pdf/1422-Track-1-2-EquaLogic.pdf · Sample of EqualLogic / VMware Customers Rapid Customer Adoption

EqualLogic and VMware: Share the same Vision for Disaster Recovery

Rapid• Automate recovery process• Eliminate failures due to hardware dependencies• Integrate different components of recovery

Reliable• Enable easier, more frequent testing• Turn manual, inconsistent processes into pre-programmed,

repeatable processes

Manageable• Centralize and simplify management of recovery plans• Make disaster recovery protection a property of virtual

infrastructure

Affordable • Eliminate idle recovery hardware• Eliminate dependencies on physical infrastructure

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FeatureVirtualized resources on consolidated hardware Virtual servers Virtual volumes spanning

multiple storage systems

Expansion of physical resources with no downtime YES YES

Online workload migration to new/different hardware VMotion Load balancing & Vacate

Fast deployment of virtual machines Clone virtual machine images

Instant creation of volumes,

snapshots, and clones

Automatic load-balancing VMotion / DRS Auto-load balancing and tiering

Partitioning of resources to specific groups and purposes

Resource pools Storage pools

Highly available infrastructure HA clustering Full redundancy

Integrated DR Solution Site Recovery Manager Replication as standard feature

Low cost SAN infrastructure for server or blade support YES YES

Virtual Servers + Virtual Storage

Page 4: Disaster Recovery Simplified: EqualLogic iSCSI SAN and ...download3.vmware.com/elq/pdf/1422-Track-1-2-EquaLogic.pdf · Sample of EqualLogic / VMware Customers Rapid Customer Adoption

Sample of EqualLogic / VMware Customers

Rapid Customer Adoption of EqualLogic, iSCSI and VMware Infrastructure 3

Cost Effectiveness“If you are looking for a full-featured, enterprise SAN without the high cost, take a look at EqualLogic.”

Performance / Scalability“The EqualLogic products outperform any of the other SANs we have baked off.”

Ease of Use“The EqualLogic units practically jump out of the box and mount/ configure themselves in your rack.”

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Business Needs for Disaster Recovery

Minimize Downtime

93% of companies that lost their data center for ten days or more due to a disaster filed for bankruptcy within one year of the disaster.

--National Archives and Records Administration

Control Cost

Minimize Risk

73% of executives expressed concern with the costs associated with maintaining a secondary data centre

--Beacon Technology Partners

92% of users surveyed acknowledged that their companies would face serious consequences if they had to implement their disaster recovery plans.

--Dynamic Markets Ltd.

Effective disaster recovery is a business imperative, but is very difficult to achieve

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Challenges of Traditional Recovery

SlowBare-metal recovery of OSRestore of data process

UnreliableDependencies on physical infrastructureMany manual and complex stepsTesting is difficult and expensive

ExpensiveRequire identical infrastructureRecovery infrastructure mostly idleCost of every change doubled

Production Recovery

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IT Best Practice Trend: Consolidation of Servers

More efficient resource utilizationReduction in licensing/hardware costsFewer points of managementReduced physical footprint Lower power and cooling costs

spare

spare

Logs

Stores DomainAD

spare

File Servers

MailServer

Backup Servers

Directory Server

Shares

DB Server

Name Server

Application Servers

spare

spare

Logs

Stores

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VMware Virtualization Enablers for DR

Encapsulation SystemApp

s= files in VFMS

Physical Server

Data

Run a virtual machine on any server without modification

Turns servers into data

Partitioning

% Utilization

Isolation

VMware Infrastructure

OSApp

OSApp

OSApp

Batch Job

DR Test

Hardware Independence

Each virtual machine is isolated from other virtual machines

Safely run multiple virtual machines simultaneously on a single physical server

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Server Consolidation Prerequisite: Consolidation of Storage

spare

spare

Logs

Stores

DomainAD

spare

File Servers

MailServer

Backup Servers

Directory Server

Shares

DB Server

Name Server

Application Servers

spare

spare

Logs

Stores

eMail

VMFS3

SQLRDM2

VMFS2

VMFS1

Backups

Backups

Free SpaceRDM1

EqualLogiciSCSI SAN

Simplified provisioningFewer points of managementMore efficient resource utilization

Higher availability

Better backup and restoreImproved data protection

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Key Features Enabled by Networked Storage (SAN)

DRS - Distributed Resource SchedulingOptimizes resource usage based on current workloads

VMware HAAutomated rehosting and restart of virtual machine in case of server failure

VMware Consolidated BackupServer-less backups

VMotionOnline migration of running virtual machines without interruption

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Why is iSCSI Important?

Reduces the Barrier to Networked Storage

Uses more affordable hardware

Extends existing infrastructure

Leverages ubiquitous networking knowledge

Helps simplify SAN deployments

Enhances Consolidation ROIReduces TCO for servers

Lowers cost of VMwaredeployment

Improves scaling of VMwareinfrastructure

Servers Storage

TCP/IPEthernet

SCSI

Packet

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Industry Trend: Virtual Servers Meet Virtual StorageExtendable, Scalable, and Resilient Infrastructure for Both Servers and Storage

PathVirtualization

PortVirtualization

CapacityVirtualization

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Redundant and Hot Swap Hardware

Data copy facilities – in SAN HardwareSnapshots

Clones

Replicas

Integration of SAN data copy with servers and applications

Backup / Restore

Quick Recovery

Disaster protection and recovery

Key SAN Features for Data Protection and Recovery

Hot swap drive carriers

Dual power supplies / dual fans

dual controllers

BackupServer

LAN

Snapshots andClones

Tape Library

Remote Site

Replicas

t4t3

t2t1

r4r3

r2r1

SANSAN

t4t3

t2t1

SANSAN

r4r3

r2r1

ProductionSite

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Server-less BackupSAN Offloads Servers From Backup Tasks

BackupServer

LAN

1

2

3

Server Server Server

Snapshot

Tape Library

Remote Location

Step 1: Create a snapshot of the application volumeStep 2: Backup server mounts the snapshotStep 3: Backup server copies the snapshot to tape

EqualLogicPS Series Arrays

Gigabit Ethernet Fabric

Gigabit Ethernet Fabric

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Recovery Process in a Virtualized Environment

RTO of a few hours, not days to weeks!

Configure hardware

Install OS

Configure OS

Install backup agent

Start “Single-step automatic recovery”

RestoreVM

Poweron VM

Example recovery process comparison

P-P

V-V

40+ hrs

< 4+ hrs

Page 16: Disaster Recovery Simplified: EqualLogic iSCSI SAN and ...download3.vmware.com/elq/pdf/1422-Track-1-2-EquaLogic.pdf · Sample of EqualLogic / VMware Customers Rapid Customer Adoption

Customer Case Study Using VMware and EqualLogicLifeLink Foundation

Challenges– Need cost-effective disaster recovery for 7x24

access to critical organ donor databases – Duplicating existing production environment at DR

site too costly and complex

Solution– Virtualized environment based on

EqualLogic SAN and ESX Server– SAN-based replication of server images / data

sets across 3 sites for quick disaster recovery

Benefits– Physical servers reduced from 12 to 2– Simple and cost effective disaster recovery

IT environment– SQL Server-based clinical and operational

databases, Exchange, SharePoint, Citrix

“Traditional disaster recovery would have added much more complexity to our environment –the EqualLogic/ VMware solution gave us DR along with simplicity.”

John RohnVP Information TechnologyLifeLink Foundation

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What it is:Site Recovery Manager is a new VMwareproduct for disaster recovery

What it does:Automates disaster recovery processes:

Setup

Failover

By combining disaster recovery automation with the capabilities of VMware Infrastructure, we further reduce RTO, cost, and risk

Introducing Site Recovery Manager

FailbackTest

Site Recovery Manager leverages VMware Infrastructure to transform disaster recovery

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Key Components

Storage

Servers

VMware Infrastructure

VirtualCenter

Site Recovery Manager service• Manages and monitors recovery plans• Tightly integrated with VirtualCenter

SAN Replication• Integrated via replication adapters• Replication adapters certified and

supported by EqualLogic

SAN Replication

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Key Components

Storage

Servers

VMware Infrastructure

VirtualCenter Site Recovery Manager service

Storage

Servers

VMware Infrastructure

VirtualCenter

Protected virtual machines

SAN Replication

Production Disaster Recovery

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Site Recovery Manager Management Interface

Disaster recovery management is another view of your environment

Viewed from VirtualCentermanagement client

Central point of management for virtual infrastructure

Site Recovery Manager server

VirtualCenterserver

VirtualCenterclient

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Setup and Build Recovery Plans

Turn manual runbook into automated process

Specify steps of recovery process in VirtualCenter

Extensible framework Scripts for specialized tasks

Checkpoints for manual steps

Enables integration with physical recovery

Page 22: Disaster Recovery Simplified: EqualLogic iSCSI SAN and ...download3.vmware.com/elq/pdf/1422-Track-1-2-EquaLogic.pdf · Sample of EqualLogic / VMware Customers Rapid Customer Adoption

Replication with VMware: Array-Based Replication

WAN / LAN

WAN / LAN

PRIMARY DR SITE

EqualLogicSAN

EqualLogicSAN

Array-Based Replication

SiteFailure

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Failover Automation

Detect site failuresRaise alert when heartbeat lost

Initiate failoverUser confirmation of outageGranular failover initiation

Manage replication failoverBreak replicationMake replica visible to recovery hosts

Execute recovery processUse pre-programmed planProvide visibility into progress

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Failback

No big red button--process enablement instead

Promote secondary site to primary

For one or more VMs

Add VMs to DR profileProtect them at another site

Manual failoverShort downtime (minutes)Likely to be individual VMs/applications

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Testing

Replication ManagementSnapshot replicated LUNs before test

Delete snapshots of replicated LUNs after test

Network ManagementChange all virtual machines to a test port group before powering them on

Customization/extensibilitySame breakpoints and callouts as failover sequence

Extra breakpoints and callouts around the test bubble

Page 26: Disaster Recovery Simplified: EqualLogic iSCSI SAN and ...download3.vmware.com/elq/pdf/1422-Track-1-2-EquaLogic.pdf · Sample of EqualLogic / VMware Customers Rapid Customer Adoption

Summary EqualLogic + VMware Simplified Disaster Recovery

RapidAutomate disaster recovery setup, failover, failback, and testingEliminate complexities of traditional recovery

Reliable Ensure proper execution of recovery planEnable easier, more frequent tests

ManageableCentrally manage recovery plansMake plans dynamic to match environment

AffordableUtilize recovery site infrastructureReduce management costs