Zálohovanie vo virtuálnom prostredí

SOFT-TRONIK SK

Zálohovanie vo virtuálnom prostredí

František FerenčíkVMware Certified Instructor

Agenda

• Princíp virtualizácie• Problematika vysokej dostupnosti• Zálohovanie vo virtuálnom prostredí

VMware Virtualization Basics

Hardware-independence of OS and applications

Virtual machines can be provisioned to any system

Manage OS and application as a single unit

After Virtualization:

Software tied to hardware

Single OS image per machine One application workload per OS

Inflexible, costly infrastructure

Before Virtualization:

Copyright © 2006 VMware, Inc. All rights reserved.

Key Properties of Virtualization

Partitioning• Run multiple operating

systems on one physical machine

• Fully utilize server resources• Support high availability as

shared data is cluster-ready for failover & redundancy

Encapsulation• Encapsulate the entire state

of the VM in hardware-independent files

• Save the VM state as a snapshot in time

• Re-use or transfer whole VMs with a simple file copy

Isolation• Isolate faults and security at

the hardware level• Dynamically control CPU,

memory, disk and network resources per VM

• Guarantee service levels


VirtualCenter Components

VirtualCenter Clients

VirtualCenterManagement Server

Storage Area Network

VirtualCenter Management Agent

VirtualCenter Database

VMotion Agent

ESX Server 2.0.1+

GSX Server 3.1+

VM Template Storage

VirtualCenter provides a central and secure point of control for Virtual Infrastructure across the enterprise

Virtual Infrastructure Nodes (VINs)



Hardware Independence

Run a virtual machine on any server without modification

• Eliminate need for 1:1 hardware duplication for BC

• Eliminate risk of hardware “configuration drift”

• Re-use older servers for BC-DR

Encapsulation

Encapsulate entire systems as simple files

= FilePhysical Server

Data

AppsSystem

• System portability

• Simplify provisioning for recovery

• Simplify backup and replication

• Simplify copying and cloning of systems

Business Continuity in virtual

Isolation

Each VM isolated from other VM’s

• Easier testing of a BC-DR plan

• Stability and security

• Utilize DR hardware for other tasksVMware Infrastructure

OS

App

OS

App

OS

App

Batch Job

DR Test

% Utilization

Partitioning

Safely run multiple VM’ssimultaneously on a single server

• Consolidate servers

• Boost utilization

• Provide significant cost savings

Business Continuity in virtual


1. Activate Maintenance Mode for physical host

2. DRS migrates running virtual machines to other hosts

• Use VMware VMotion to evacuate hosts– Move running applications

to other servers without disruption

– Perform maintenance at any time of day

– Zero downtime for hardware maintenance

• Automate with DRS maintenance mode– Automates moving virtual

machines to other hosts– Automates re-balancing

after maintenance

3. Shut down idle host and perform maintenance

4. Restart host; DRS automatically rebalances workloads

VMotionVMotion

Planned Zero-downtime


Hypervisor

VM VM VM

File CUS IIS

SQL SAP EXC

ORACLE DB2

Virt

uáln

e pr

oste

edie

Fyz

ické

pro

stre

die

CUS

Dostupnost aplikácií: Chráni aplikácie pred výpadkami fyzických a virtuálnych serverov

Aplikace naprieč virtuálnym a fyzickým prostredím

Dostupnosť dát: Ochrana a obnova dat vo fyzických i virtuálnych prostrediach

9

Application and data HA

Hypervisor

VM VM VM

File CUS IIS

SQL SAP EXC

ORACLE DB2

Virt

uáln

í pr

ostř

edí

Fyz

ická

pro

stře

dí

CUS

Dostupnost aplikací: Chrání aplikace před výpadky fyzických a virtuálních serverů

Aplikace křížem přes virtuální a fyzická prostředí

Dostupnost dat: Ochrana a obnova dat ve fyzických i virtuálních prostředích

VCS for VMware ESX

Vedúce postavenie na trhu v multiplatformovej vysokej

dostupnosti

Kompletné HA/DR riešenie

Chráni virtuálne i fyzické prostredia

Úplne centralizovaná správa

NetBackup Vedúce postavenie na trhu

podnikovej ochrany a obnovy dát

Monitorovanie a riadenie backup and recovery

Ochrana vzdialených pobočiek

Granulárna obnova súborov pre VMware

10

Application and data HA

Cause of Failure VMware HA VCSApp processes crash/hang XApp process startup order XAdmin accidentally caused failure XConfiguration changes XOS failure X XNIC or network failure XStorage connectivity failure XVirtual Server failure X XPhysical Server failure X XData center failure X X

If the application fails, VMware HA will not know about it

If network or storage connectivity fails, VMware HA will not protect you

Should crown-jewel apps be trusted to manual DR?

VCS vs VMware HA

• VMotion delivers planned downtime protection

• DRS active workload management

– Monitors resource utilization & intelligently allocates available resources among the VMs

• VCS delivers end-to-end unplanned downtime protection

• Customers can use Vmotion/DRS while using VCS for VMware

Hardware (x86)

VMware ESX

Hardware (x86)

VMware ESX

VM A VM DVM B

SQL

VM C

IIS

VM B

SQL

VCS VCS

VCS plus VMotion/DRS

•Agent in Service Console

– Simplified backup of full-disk images

– Any storage

• Agent in each VM– Same architecture as

physical system backup

– File-level incremental backup possible

– Any storage

ServiceConsole

App

OS

Backup Agent

ServiceConsole

Backup Server

tape

App

OS

Backup Agent

Backup Agent

•Consolidated Backup - Agent on VCB Server

– Move backup out of VM– Provide LAN-free

backup– Eliminate backup

windows– Pre-integrated with 3rd

party backup products

OS

In-VM In-Console VCB

Backup in VMware enviroment


VM Protection Approaches

VM Client-Based Data Backup (Normal Backup Client or Deduplication Client)

ESX Server

Client and Application AgentInside VM

C CA

Backup Server and

Storage

C

Simple

Leverages DB agents

High overhead with normal client

Low overhead with dedupe client

CAApplication Agent Client

Off-Host Backup via VMware VCB (Data, or Data + VMDK)

ESX Server

A

Backup Server and

Storage

SharedStorage

Low overhead on ESX Server

Auto-discovery and configuration

Individual file and/or VMDK options

Compression and deduplication

Lower average dedupe than in guest –

VMwareGranular Recovery

Backup Server & Storage

VM

— or —

object

Auto-Discovery

ESX Server


VM Discovery viaVirtual Center

Automated Restorevia VMware Converter

ESX Server

Deduplication

ESX Server

DD DA

Replication

Datacenter

VaultBackup Server

& Storage

ESX Server

C CA

C

Deduplication/Standard

Client-Based Backup

ESX Server

DD DA

VMware VCB Off-Host Backup

ESX Server

A


SharedStorage

Introducing NetBackup for VMware

15

NetBackup for

Flexible Virtual Machine protection methods….

…coupled with unique enabling technologies

6.5.2 VMwareIncrementals

Deep Dive: VCB Backups and Granular Recovery

File Recovery

Image Recovery

VMDK

VMware ESX VMware ESX

NetBackupMediaServer

PrimaryShared Storage Backup Storage

VMDK

VMDK

VMDK

VMDK

VMDK

VMDK

VMwareProxyDriver

NetBackupEnterprise Client

PureDiskPlug-in

NetBackupMediaServer

VMwareProxyDriver

NetBackupEnterprise Client

PureDiskPlug-in

VMware ESXVMware ESX

BackupDisk

TapePureDisk

1Backup policy alerts NetBackup that it is time to do a virtual machine backup

2NetBackup instructs VMware to snapshot the virtual machine

3The new VMDK snapshot is mounted to the NetBackup Server via the proxy driver

4Backup is then performed to any NetBackup storage device (disk, tape, PureDisk)

5 The VMDK snapshot is deleted

6 The backup image is then mapped for file-level recovery

VMDKVMDK

7Virtual Machines can then be restored from image backups for DR

8 Or, single files can be recovered to any location

VMDK

Combination: file and vmdk

NetBackup Alternatives

VM one backup

copyone fast image

backup

file-level recovery

full-VM recovery

VM

firstimagebacku

p

one fast image backup

file-level recovery

full-VM recovery

second

filebacku

p

second slow file backup

VMDK VMDK

•NetBackup uses VMware’s VCB technology to backup only once, then maps the image backup for file-level restores

•Deduplication then can reduce storage even further – by up to 95%!

•2x the storage

•2x the CPU and network usage

•More than 2x the backup time!

NetBackup Consumption

NetBackup Alternatives

•NetBackup software does not need to run on the ESX Server at all, thereby maximizing performance of ESX server

•Backup traffic travels on the abundant SAN, not the constrained LAN

•Performance hit is isolated to the dedicated backup server

Backup Server and

Storage

ESX Server ESX Server

Backup Server and

Storage

ESX Server ESX Server

C C C C C C

•Competitive solutions require backup to run inside VMs, thereby reducing performance of the ESX Server

•LAN bandwidth becomes a key choke-point

NetBackup Performance

Backup Exec 12.5 & Backup Exec System Recovery 8.5

– Reduce Cost and Management of Multiple Products - complete data protection for physical and virtual server environments from a single console

– Reduce Complexity – automatically discover and backup of unlimited guest machines to disk or tape with a single agent

– Reduce Recovery Time - granular file-level and image-level recovery with a single backup

Exchange 2007

VMware ESX Server

Backup Exec 12.5 Media Server

19

Veritas Backup Exec

Efficient Backup of virtual Environments Efficient Backup of

virtual Environments

Comprehensive BackupComprehensive Backup

20Backup Exec 12.5 & Backup Exec System Recovery 8.5

Veritas Backup Exec

21

Easily restore an entire guest machine…

Easily restore an entire guest machine…

Fast RecoveryFast Recovery


Veritas Backup Exec

22

…and granular files or folders from a single image-level backup

…and granular files or folders from a single image-level backup

Fast RecoveryFast Recovery


Veritas Backup Exec

František FerenčíkVmware Certified [email protected]

(prezentátor je certifikovaným školiteľom VMware technológií v spoločnosti SOFT-TRONIK SK)

SOFT-TRONIK SK, s.r.o.

Hattalova 12/A831 03 Bratislavatel.: +421 244 631 232 fax: +421 244 631 232

www.soft-tronik.sk

Technology

Zálohovanie vo virtuálnom prostredí