Backup Challenges in VMware Environments

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Backup Challenges in VMware Environments


Agenda

VMware backup challenges

Benefits of deduplication

EMC backup solutions


Today’s Data Protection Challenges

IDC: forecasts 10x data growth in the next 3 Years– 10 TB production data will grow to 100 TB – Your 40TBs/month of backups turns into 400 TB per month – Including your monthly backups, this will grow to over 1.5 PB in backup storage– This is a two-fold problem:

Inability to meet your SLAs for backup and recovery Storage and associated operational costs increasing faster than available budgets

Forrester: 65% of companies will adopt server virtualization by 2009– Backup bottleneck limiting customers from further server consolidation

ESG: 47% of companies consider improving ROBO backup a high priority– Cost of people and equipment at each location– Bandwidth too costly for centralized backup with traditional methods– Risk that backups not happening at all

ESG: up to 14% of backups are incomplete– Data is unprotected, your business is at risk


Email/Database File Servers ROBO

VMware

NFS/iSCSI/FC

The Backup Challenge

Tape Backup

VMWARE

- Test/Dev- RTO/RPO

- Growth- Static Data- Dense Files

- Server Contention- Network Contention

- Limited Resources- Limited Bandwidth

- Backup window- Backup reliability


CHALLENGES

New Backup ChallengesLittle idle CPU, memory bandwidth, and I/O capacity for backup

VirtualServer A

Virtual Server B

Virtual Server C

Old ParadigmPhysical Environment: Low overall server

utilization and plenty of bandwidth for backup

New ParadigmVirtual Environment: High overall server utilization and little bandwidth for backup

20 percent resource utilization 80 percent resource utilization

100%

80%

40%

0%

60%

20%

CP

U U

tili

zati

on100%

80%

40%

0%

60%

20%

CP

U U

tili

zati

on

Server A Server B Server C

ESXServer

Hardware

Shared Physical Resources


ResourcePool

VMware Virtualization Layer

x86 Architecture

~200% weekly per virtual machine

~200% weekly per virtual machine

Disk/Tape

CHALLENGES

New Backup ChallengesIncreasing amounts of data that has to be protected

Traditional backup is very inefficient—does nothing to eliminate redundant data

Redundant data along with weekly full and daily incrementals results in up to 200% of primary data being backed up per week

Does nothing to solve network, backup server, or disk bottlenecks

OS OS

BackupServer


De-Duplication – Why the hype?

Data De-Duplication is a ‘white-hot’ technology

Why ?

Because it has such a powerful value proposition:

Reduced StorageReduced Infrastructure

CostsMuch Faster Backups

Efficient Replication for DR

All of which adds up to a compelling TCO & ROI

De-Dupe Defined:

“Identification of unique ‘chunks’ in a set of data, enabling the elimination

of duplicates when stored or moved.”

Data Set 3

Data Set 2

Data Set 1

De-duplication

Data Set 3

Data Set 2

Data Set 1

Data Set 3

Data Set 2

Data Set 1

De-duplicationDe-duplication

“De-dupe is a feature not a product. It is just one feature--albeit an important one--of disk-based

platforms.”


DataCenter

Only unique data segments are backed up

First Instance

Data Deduplication: How it WorksSimple Example of Global, Source Data Deduplication

Remote Site 2 Modified Instance

New data segment identified and backed up

Remote Site 1 Duplicate Instance

Data already backed up, so only unique IDs stored (20 byte pointers)

EMC BACKUP SOLUTIONS

Deduplication Server (stored backup data)

A B C D

AB

CD

E

E


DE-DUPLICATION AT TARGETDE-DUPLICATION AT SOURCE

Where Can Data De-duplication Occur?

Source– Client software agents identify repeated sub-file

data segments at the source– Only new, unique segments are transferred

across the network during backup operations– Benefits: shorter backup window, lower

bandwidth requirements

Target Backup application sends native data to a target

storage device

Data is de-duplicated once it reaches the target & can happen during or after backup

Benefits: transparency to backup application, “plug and play” experience

Network Network

‘One size’ definitely does NOT fit all!


EMC AvamarTransforms backup and recovery with global, source-based deduplication

Source-based, global data deduplication

– Reduces data at source (client) and globally (backend disk)

Fast, daily full backups – Up to 10x faster daily full backups

Integrated high availability and reliability

– RAIN for high availability and fault tolerance

Flexible deployment options– Avamar Virtual Edition for VMware– Avamar Data Store – Avamar Software


Avamar Software Avamar Virtual Edition for VMware

AvamarVM

ResourcePool


x86 Architecture

AvamarVM

AvamarVM

Avamar Data Store


Avamar Backup Solutions for VMwareEMC BACKUP SOLUTIONS

VMware Guest OS Backup

Avamar client software runs directly on each virtual machine

Avamar client software runs on the proxy server

vStorage APIs for Data Protection

PhysicalServer

Virtual Machines

SANStorage

vStorage API proxy server with Avamar agent

Avamarserver

CentralizedData Mover

= Avamar Software Agent

ResourcePool


x86 Architecture



Avamar Backup for VMware Guest OSSource-based De-duplication vs. Traditional Backup

Network UsageCPU Usage

Disk Usage

Traditional

Avamar



Avamar moves ~2% weekly

Traditional moves ~200% weekly

ResourcePool


x86 Architecture

ResourcePool


x86 Architecture

Avamar: Optimized Backup for VMware Infrastructure

Daily full backups and one-step recovery

Maintains effective consolidation ratios without overtaxing CPU utilization

Enables greater server consolidation

Avamar efficiently protects virtual machines

Up to…– 95 percent reduction in data moved– 90 percent reduction in backup times– 50 percent reduction in disk impact– 95 percent reduction in NIC usage– 80 percent reduction in CPU usage– 50 percent reduction in memory usage


Avamar Backup for VMware Guests

Avamar agent resides inside each virtual machine

Deduplicates data within the virtual machine, as if they were physical servers

Moves minimal backup data– Reduces resource contention and accelerates backups

Provides file-level restore for Windows, Linux, and Solaris


ResourcePool


x86 Architecture


Avamar and vStorage APIs for Data Protection

Avamar agent resides on the proxy server

Deduplicates within and across VMDK files

Supports both file (Windows only) and image-level backup

Avamar replication provides disaster recovery for backed up VMDKs


PhysicalServer

Virtual Machines

SANStorage

vStorage API proxy server with Avamar agent

Avamarserver

CentralizedData Mover



Extend VMware to Remote Facility Data ProtectionBackup and recovery and DR deployed as a virtual appliance


ExchangeFile and

Print DNS

BackupServer

TapeLibrary

TapeMedia

OffsiteTapeStorage

TraditionalData Protection

AvamarVirtual Edition

ResourcePool

ESX Server

Hardware

AvamarVM


Avamar Virtual Edition for VMwareBackup and recovery and DR deployed as a virtual appliance

Industry’s first deduplication virtual appliance for backup, recovery, and disaster recovery

Leverages existing ESX servers and storage

Replication (of applications and storage) eliminates shipping tapes

Facilitates rapid, cost-effective deployment and ROI

Supports VMotion for deployment flexibility

Up to two Avamar Virtual Edition virtual appliances per ESX server for scalability


AvamarVM

ResourcePool


x86 Architecture

AvamarVM

AvamarVM


Replication for Remote Facilities Disaster Recovery


Avamar Virtual Edition

Distributed Remote Facility with VMware

ResourcePool

ESX Server

Hardware

AvamarVM


Avamar Virtual Edition

ResourcePool

ESX Server

Hardware

AvamarVM

Replication forDisaster Recovery

Avamar Data Store


Avamar Success Story: Corporate ExpressTime shortened, costs reduced for backup in VMware deployment

Before Avamar

Storage demands were rapidly increasing

Tape library was reaching slot capacity and upgrading was not ideal due to age and maintenance costs

Needed to control costs and simplify data management

Backup and disaster recovery was time consuming

With Avamar

Reduced stored data by more than 50%, from 92 TB to 44 TB

Achieved significant financial savings

Enabled disk-based backups to be completed in 30 minutes, compare to 6 hours in the past for tape

Reduced restoration times for business-critical data from 24 hours to minutes


“We were blown away by the simplicity of the management interface and the comprehensive capabilities offered by Avamar. After carrying out a proof of concept, we clearly understood the benefits Avamar would bring to our business.”

— Mark JonesTechnology Infrastructure Mgr.

Documents

Backup Challenges in VMware Environments