Fast Failover, DR and Storage Optimization in Windows ... SM B17 Fast Failover, DR and Storage...

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SM B17

Fast Failover, DR and Storage Optimization in Windows Physical & Virtual Environments

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Saveen Pakala Director Product Management

David Rizzo Windows Server Engineer Paychex

Lisa Erickson Principal Product Manager

SYMANTEC VISION 2012

Maximize Storage ROI and High Availability in an Evolving Windows Data center

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Reliable Disaster Recovery

Automate DR across physical & virtual

Fast Application Failover

Ensure apps can failover in seconds

Storage Optimization

Leverage infrastructure you already own

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http://www.iconfinder.com/icondetails/8938/128/cog_gear_preferences_system_icon

SYMANTEC VISION 2012 3 SM B17







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LUNs allocated to host but not used

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?

File System

DG/Volume

LUN

Identify Orphaned LUNs

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Not all LUN capacity is used for volumes

LUN 1

LUN 2

LUN 3

LUN 4

LUN 5 volume

LUN

Vol 1 Vol 2 Vol 3

Vol 1

V1 V2

V2

V3

Waste

File system

Identify Underutilized LUNs


Not all Volume and File System capacity is used by applications

Vol 1

volume

LUN

File system

Vol 3

Vol 2

fs1 fs2 fs3 fs4

Waste fs5

fs6

Identify Underutilized Volumes and File Systems


Cost/performance attributes of storage not aligned to app business importance

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Tier 1 App

Tier 2 App

Tier 3 App

Tier 3 Storage

Tier 2 Storage

Tier 1 Storage

$$ $$$ $

Misaligned App and Storage Tiers


Maximize LUN, Volume, & FS Utilization with Online Operations

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Thresholds

Amount by which to grow

Max volume size

Capacity Monitoring and Auto-grow

Grow or Shrink Split or Join Move


Updated in 6.0 Migrate Storage for Better ROI (Cost, Efficiency, Perf)

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vhd1

VM1

OS

APP

vhd2 vhd3

vol 1 vol2

Array Migration

Array Type 2 Array Type 1 $$$ $

Hyper-v Virtual Machine

Online • Any-to-any storage • Cluster friendly • Easy to use


• SmartMove copies blocks that contain data

• White space not copied

• Not writing unused data = No unnecessary allocation on the thin LUN

Source (legacy) 70% Wasted Storage

Target (thin)

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NTFS

SFW

Integration

SFW host

0% Wasted Storage

Data Block

Empty Block

SmartMoveTM Makes Migration Faster & Helps Get Thin


• Deleting files doesn’t give space back to Thin pool

• ‘Thick’ storage

• Solution: Thin Reclaim

• Automate process from app to array

• Online, non-disruptive

• Supports leading storage HW vendors

NTFS

Thin LUN Utilization

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Rec

lam

atio

n

WR

ITE_

SAM

E

vhd1 vhd2 vhd3 vhd4 vhd5

SFW Coordinates with NTFS to Stay Thin








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• Factors that can influence time to detect failures

– Poll interval

– Number of resources

• System CPU and memory overhead

– Spikes at poll times

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Faulting…

Faulted

Traditional Monitoring Framework

Veritas Cluster Server (VCS) Core

VCS Agent Framework Poll based Monitoring

Resources Being Monitored

Traditional Failure Detection Polling Based


• Immediate detection of failures

• Reduced CPU and memory overhead

• Register -> Blocks & awaits notifications

GenericSerivce

IP

NIC

MountV

Mount

VMDg

IIS

Oracle

NetLsnr

Process

RegRep

SQLServer2005

SQLAgService2005

SQLOlapService2005

MSDTC

SQLServer2008

ExchService2007

Exchange2010DB

VCS Core

VCS Agent Framework

Intelligent Monitoring Framework (IMF)

Resources Being Monitored

Registering…

Intelligent Monitoring

Faulted

Failures get detected instantly with SFWHA 6.0

New in 6.0 Faster Failure Detection Intelligent Monitoring


• Problem: Large storage object config proportionately increases failover time

– Eg.: A config with 150+ disks, 25+ DGs, 150+ volumes can take 30+ minutes to failover

• Contributors to long failover time

– DG deport, DG import, Rescan, Object creation, Volume arrival handling

• Solution:

– Avoid full deport/import of disk group during failover

– Optimize the online/offline mechanisms of resources like MountV, VMDg

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Reduce Failover Time


• Application online • DG imported in read-write mode • I/O and config update possible

• Application offline • DG imported in read-only mode • I/O and config update not possible

Interconnect

Cluster

… nodes up to supported

cluster limits

Active Node Passive Node

New in 6.0 Fast Failover Multi-Node Disk Group Access


• Application offline • DG imported in read-only mode • I/O & config update not possible

• Application online • DG imported in read-write mode • I/O and config update possible

Interconnect

Cluster

… nodes up to supported

cluster limits

Old Active Node New Active Node

• DG deport on current active node

• Disk re-scanning on new active node

• Creating volumes on new active node

• Handling volume arrivals

• Flush & un-mount volumes on previous active node

• DG RW and RO access changes

• File system re-mount on new active node

Steps: Avoids:

New in 6.0 Fast Failover Multi-Node Disk Group Access


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20.5 minutes

7 minutes

27.5 minutes

16 seconds 39 seconds 55 seconds

0

200

400

600

800

1000

1200

1400

1600

1800

Avg. Offline (seconds) Avg. Online (seconds) Avg. Fail Over (seconds)

Example Configuration:

– 2 node cluster, SQL 2008 R2

– Quad core processors, 32GB memory

– 150 LUNs, 25 Disk Groups, 125 volumes

seco

nd

s

Fast Failover Performance

Failover time is reduced dramatically with SFWHA 6.0

Note: The results can vary depending on the configuration and environment








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Subnet A Subnet Z

APP 1 APP 3 APP 2 APP 4

APP 4 APP 1 APP 2 APP 3

Asynchronous Replication

RPO = near 0 RTO = mins

Primary Site DR Site Any Distance

• 2 clusters – across subnets, dissimilar hardware & config

• One click DR

– reverse replication

– mount disks/volume

– plumb vIP & update DNS

– start app in dependency order

• One click failback

• Out-of-box replication agents

• Flexibility to pick heartbeat & failover policy for local vs remote nodes cluster

SFWHA automates DR

Wide-area DR with Global Cluster


Primary Site

Volume Snapshot

Initiate Fire Drill Mount Snapshot

Replication

Test Application Reset

Secondary Site

Simulate DR Failover

• Test the recovery path

– storage, server, network, application

• No impact on production

– Everything done on DR site

– On replicated volume snapshot

– No IP conflicts

• Easy to use

– Automated

– Wizard based setup and ongoing tests

– More frequent DR tests leads to faster DR tests

SFWHA enables non-disruptive and easy-to-use DR testing

Test Your DR Readiness with Fire Drill

ESX ESX

VMware HA

VM2

OS

VM3

OS

ApplicationHA: Application-aware DR with SRM

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“Protected” Site “Recovery” Site

vCenter vCenter

SRM Server SRM Server ApplicationHA

Console

ESX ESX ESX

VMware HA

VM1

OS

EXCH

Application HA

SRM Failover

SQL

Application HA

SAP

Application HA

VM2

OS

VM3

OS

VM1

OS

EXCH

Application HA

SQL

Application HA

SAP

Application HA

ApplicationHA

Console


Hyper-V

App

VM1

OS

SQL

DR

VM

OS

VCS

Windows Server 08 R2

Hyper-V

App

VM1

OS

SQL

App

VM2

OS

SQL


Hyper-V

App

VM1

OS

SQL

App

VM2

OS

SQL

DR

VM

OS

VCS


Asynchronous Replication

Primary Site DR Site

Global Cluster Communication

FOC FOC FOC

New in 6.0

• Microsoft Failover Cluster (FOC) provides local HA for application VMs • Veritas Cluster Server (VCS) automates DR for all VMs in coordination with FOC

VCS: Disaster Recovery Manager for Hyper-V

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Web server

Database Database

Prod_App

app app app

Prod_App

app

Web server

Prod_App

app

Web server

HR_VBS

Production Site Disaster Recovery Site

HR_DR_VBS HR_DR_VBS

Disaster Recovery of Service

1 Automatic disaster detection

2 Automated service start

3 Manage replication layer Database

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New in 6.0 Disaster Recovery Automation Virtual Business Service


• Storage spend and SLA requirements continue to increase in Windows data centers

• Storage Foundation & HA for Windows (+ VOM) provides

… across heterogeneous storage, platform, applications, replication

• Future direction = further enable private & hybrid cloud env.

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Summary







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Thank you!

Copyright © 2012 Symantec Corporation. All rights reserved. Symantec and the Symantec Logo are trademarks or registered trademarks of Symantec Corporation or its affiliates in the U.S. and other countries. Other names may be trademarks of their respective owners. This document is provided for informational purposes only and is not intended as advertising. All warranties relating to the information in this document, either express or implied, are disclaimed to the maximum extent allowed by law. The information in this document is subject to change without notice.

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ID Title Day Time Room

SM B16 Veritas Operations Manager Advanced: The Swiss Army Knife of the Data Center

Thurs, May 10 9:00 am 311

SM B10 Rethink Disaster Recovery: Replication and Backup Are Not Enough

Thurs, May 10 10:15 am 116

SM L03 Veritas Operations Manager: Get the Most from Your Storage Foundation and Veritas Cluster Server Investment

Thurs, May 10 10:15 am 123

SM B09 ApplicationHA: Maximize Application Availability and Manageability in Virtual Environments

Thurs, May 10 11:30 am 309

SM B02 High Availability Strategy and Futures Thurs, May 10 1 pm 116

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Interested in learning more? Go to these sessions:


Veritas Storage Foundation and High Availability Training Offerings

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Symantec Training is EASY because:

• Training from Symantec gives you the product knowledge you need to be effective in your job.

• Learn from Symantec’s expert instructors how to get it right – the first time.

For more information on storage and high availability training offerings, Visit: http://go.symantec.com/education_sfha

Veritas Storage Foundation and High Availability comprehensive training

portfolio is designed to help you quickly learn to optimizes your storage

performance and availability, improve operational efficiencies and visibility

with a centralized console across physical and virtual environments. Learn

to deploy the product in a lab environment, manage applications in highly

available environments, and learn troubleshooting and recovery

techniques.

Extend your investment by purchasing Symantec Education

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http://go.symantec.com/education_sfha

http://go.symantec.com/education_sfha


Symantec ApplicationHA Training Offering

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Symantec Training is EASY because:

• Training from Symantec gives you the product knowledge you need to be effective in your job.

• Shorten your implementations and spend less time with support

• For more information, visit http://go.symantec.com/education_elibrary

Symantec ApplicationHA training is designed to help you learn how to

improve the availability of your business-critical applications through

application-level visibility, control, and recovery in VMware

environments.

Extend your investment by purchasing Symantec Education

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http://go.symantec.com/education_elibrary

What does Symantec Business Critical Services Provide?

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Optimize IT Operations

Stabilize IT Infrastructure

Rapid Response

Continuous Service

Improvement

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Fast Failover, DR and Storage Optimization in Windows ... SM B17 Fast Failover, DR and Storage...

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