business continuity and storage management for the...

Business Continuity and Storage Management

for the Virtualized Datacenter

James GentesSr. Product ManagerSymantec Corporation

Clustering & Virtualization

�The Benefits and Challenges of Virtualization

�Symantec Solutions for Server Virtualization

� Management of Physical and Virtual Environments

� Traditional Clustering vs. Virtual Machine Clustering

� Cluster Topologies

� Disaster Recovery for the Virtualized Datacenter

� Preparing and Testing for Disaster with VCS Fire Drill

�Why Virtualization is Strategic for Symantec

Agenda

The Benefits of Virtualization� Virtual Machines offer compelling value

� Consolidation � Hardware cost reduction

� Rationalization -> Increased utilization

� Flexibility � Rapid provisioning / allocation

� Reduced complexity!

� The Old:

� 2 node clusters, redundant hardware and OS

� The New:

� N+1 configurations, fewer OS instances,

simple movement of applications

The Challenge of Virtualization:Ensuring Application and Data Availability

� Putting all your eggs in one basket:

� Increases the need for application availability

� Storage management becomes more complex

� How do you ensure data and

application availability when:

� Server hardware fails?

� Application fails?

� SAN connection fails?

� Network link fails?

� Datacenter fails?

Multi Platform Complexity

Solaris Solaris

Containers Containers

+ Zones+ Zones

IBM IBM LPARsLPARs

+ Micro+ Micro--

PartitionsPartitions

HP HP vParsvPars + +

nParsnPars + +

Virtual Virtual

MachinesMachines

VMware ESX ServerVMware ESX Server

Application Availability, Disaster Recovery,

Server Provisioning

Storage Management

Ensure Cross-Platform Consistency

Solaris Solaris

Containers Containers

+ Zones+ Zones

IBM IBM LPARsLPARs

+ Micro+ Micro--

PartitionsPartitions

HP HP vParsvPars + +

nParsnPars + +

Virtual Virtual

MachinesMachines

VMware ESX ServerVMware ESX Server

VERITAS Storage Foundation HA

VERITAS Cluster ServerVERITAS Cluster Server for VMware ESX

� Market leading cross-platform cluster solution

� Windows NT, 2000, 2003

� Linux (RedHat, SUSE)

� Solaris

� HP/UX

� AIX

� Provides High Availability and Disaster Recovery for applications

� Integrated solution for storage management, clustering, and replication

VERITAS Cluster Server for VMware ESXCross Platform Management

Consistent Management ofPhysical and Virtual Environments

�High Availability

�Disaster Recovery

�Storage Management

�Physical-to-Virtual Provisioning





VERITAS Cluster Server for VMware ESX The Business Problem..

� Server consolidation leads to a single point of failure…

� … If the new Server fails, multiple applications fail!

Hardware

UNIX or Windows

VERITAS Cluster Server

Application or Database (Exchange,

Oracle, SQL)

Hardware

UNIX or Windows



Oracle, SQL)


Oracle, SQL)

VERITAS Cluster Server for VMware ESXTraditional Application Clustering

VERITAS Cluster Server for VMware ESXWhy Not Cluster the Virtual Machine?

Hardware (x86)

VMware ESXConsole OS

Hardware (x86)

Linux Virtual Machine

“A”

Windows Virtual Machine

“B”


Linux Virtual Machine

“C”

Windows Virtual Machine

“D”

� ‘Passive’ Virtual Machines must be standing by, using resources

� Additional VM’s cost $ in licensing, plus management overhead

VCS VCSVCS VCS

Hardware



Hardware

Virtual Machine

Virtual Machine



Virtual Machine

Virtual Machine

VERITAS Cluster Server for VMware ESXVirtual Server / OS Clustering

Hardware



Hardware

Virtual Machine

Virtual Machine

App



�VCS Agents monitor applications

�App is restarted locally or VM migrates

VCS Agent VCS Agent

App

VERITAS Cluster Server for VMware ESXMonitoring Application State

App

Virtual Machine

App

VCS Agent

Datacenter Availability Topologies

The N+1 Equation

Database Database Application

Application Web Apps

Web Apps

=

DatabaseDatabaseApp App

Web AppWeb App

Standby

� 6 Clusters / 12 Servers vs. 1 Cluster / 7 Servers

The N+1 Problem

�Applications can’t always co-exist (ie. Microsoft Exchange)

�Server sharing can get political (SLA enforcement, purchasing)

�Virtual Machines solve this problem:

�Any application, even different platforms

�Resource guarantees

Use Case: Physical-to-Virtual Clustering

Consistent Management ofPhysical and Virtual Environments









Use Case: Stretch Clustering with Array Replication

Group Dependency

Primary BackupApplication Application

Replication Replication

Replication

VERITAS Cluster Server for VMware ESXGlobal Applications

Virtual Machine Agent

VERITAS Cluster Server for VMware ESX DNS Updates + Replication Management

DNS Server

User

192.160.27.1 206.49.24.101

www.company.comBackup for:www.company.com

DNS Agent

Replication

VERITAS Cluster Server for VMware ESXDisaster Recovery Fire Drill

� Validate a disaster recovery plan without disruption to production applications

� Create a carbon-copy of a live production environment to test failover scenarios and events

Verifies Site Failover

VCS for VMware ESX Fire Drill

Measure DR performance against

SLA objectives (RPO/RTO)

Real-world testing through a successful connection to the Fire

Drill application instance

Benchmark DR performance for

continuous improvement over time

Determine actual RP/RT with a

detailed time breakdown to

identify bottlenecks

VERITAS Cluster Server for VMware ESX Recover to Last Known Good Image

1. After Fire Drill, retain a copy of the virtual machine image at the remote site

2. If failure occurs locally, try to restart the original virtual machine

3. If that fails, revert back to the previous virtual machine image

4. Replay database logs if necessary

Use Case: Stretch Clustering with Storage Foundation

VERITAS Cluster Server for VMware ESXWhat’s the Advantage?

� Eliminates the single point of failure in host servers

� VCS is the only solution that can monitor:

� Physical Server Health, Virtual Machine Health

� Plus Application Health

� Prepare for disaster with constant Fire Drill testing!

� Fail back to a Last Known Good virtual machine image!

� Simplifies cluster management and deployment

� Use one standby server for multiple physical servers!

� No clustering necessary at the Virtual Machine level!

� No ‘standby virtual machines’ necessary!

� Cluster any supported Guest OS!

Our Strategy: Provide consistent management across the physical and virtual environment

Virtual Machine Availability

Disaster Recovery

Storage Availability

P��V, V��P

� Monitor application health� Automatic recovery from server failure� Cluster across physical and virtual servers

� Virtual image Mirroring and Replication� Wide area failover� Consistent across platforms

� Map storage volumes to virtual machines� Centralized management and config

� Physical to Virtual migrations� Use Opforce across all platforms

Virtual Machine Lifecycle Management

� Discovery and Provisioning� Config and Workload Management� Business process / SLA enforcement

Hardware


Hardware

Virtual Machine

Virtual Machine

App

VMware ESX Console OS

� Application Director provides a lightweight client for Virtual Machines

� Cluster configurations are consolidated

App

Virtual Machine

App

VERITAS Application Director with VMwareApplication Management for physical and virtual machines

VAD Client VAD Client VAD Client

VERITASApplication Director

VERITASApplication Director

0101010101

0101010101

Hardware


Hardware

Virtual Machine

Virtual Machine

App


� One centralized point of management for storage and application availability

� Same across physical and virtual servers

SF Layer

App

Virtual Machine

SF Layer

App

VAD + SF in a Virtualized DatacenterCentralized application and storage management

VAD Client

SF Layer

VAD Client VAD Client

Storage Foundation

VERITAS Application Director Policy Master 0101010101

Virtual server technology doesn’t decrease the need for server and storage management – it increases it.

Server consolidation increases the need for High Availability

Storage management becomes even more complex in virtual environments

For any virtualization technology in the datacenter:

VMware, Xen, Microsoft, Sun, HP, IBM

Symantec provides consistent management across the physical and virtual environment for:

Storage Management

High Availability

Disaster Recovery

Server Provisioning

Virtualization is Strategic for Symantec

Thank You

For more information contact:

[email protected]

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