Module - 08 Data Protection

8/10/2019 Module - 08 Data Protection

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2012 VMware Inc. All rights reserved

Data Protection

Module 8


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VMware vSphere: Install, Configure, ManageRevision A

Course Introduction

Introduction to Virtualization

Creating Virtual Machines

VMware vCenter Server

Configuring and Managing Virtual Networks

Configuring and Managing vSphere Storage

Virtual Machine Management

Data Protection

Access and Authentication Control

Resource Management and Monitoring

High Availability and Fault Tolerance

Host Scalability

Patch Management

Installing VMware vSphere Components

You Are Here


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Over time, your VMware vSphere environment might undergo

changes to its hardware or software configuration. In addition,application data goes through constant change.

From a manageability perspective, making regular backups of your

vSphere environment is important.

Backing up virtual machines requires strategies that leveragevirtualization architecture to perform highly efficient backups.

Importance


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After this module, you should be able to do the following:

Describe the problems when using traditional backup in virtualinfrastructure.

Describe solutions for backing up and restoring virtual machines thatuse virtual infrastructure.

Discuss technologies that make virtual machine backup and restore

operations faster and easier.

Describe how to back up and restore a virtual machine.

Describe how to back up and restore VMware vCenter Server.

Discuss a strategy for backing up and restoring a VMware vSphere

ESXi hosts configuration data.

Learner Objectives


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Traditional Backup Method

physical server physical server

backup agent

operating system

x86 architecture

backup server

operating system

x86 architecture

backup to tape or disk data to back up

network

connection

(uses nearly 100 percent of

server resources dur ing backup)


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Excessive physical resource use generated by each virtual machine.

Backup agents installed in virtual machines monopolize host CPU

resources during backups, which results in less CPU resource forother virtual machines running on that ESXi host.

I/O resources like network and storage are also saturated with read

and write operations during backup.

Backup Challenges in Virtualized Environments

backup

server

traditional backup method

VMware vSphere


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No backup agent installation is required.

Use of virtual machine snapshot functions is enabled.

Backup processing is offloaded from ESXi hosts to a backup server.

Virtual machines see the same virtual hardware.

Virtual disks can be thin-provisioned.

Faster backup and recovery times are enabled through the use of

changed block tracking and data deduplication.

A single backup image can be created.

Both image-level and file-level restoration can be performed.

Virtual Architecture Advantages


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VMware vSphere Storage APIs Data Protection (VADP):

Enables backup and recovery of entire virtual machine images acrossSAN storage or local area networks

Is an API that is directly integrated with backup tools from third-partyvendors

Enables you to remove load from the host and consolidate backup load

onto a central backup server

Protects virtual machines that use any type of storage supported byESXi (Fibre Channel, iSCSI, NAS, or local storage)

vSphere Storage APIsData Protection


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Configure the storage environment so that the backup server can accessthe storage volumes that are managed by the ESXi hosts.

Backup processing is offloaded from the ESXi host to the backup server,

which prevents local ESXi resources from becoming overloaded.

Offloaded Backup Processing

backup

server

VMware vSphere

mount virtual

disks to backup

server

tape disk


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Copy only file blocks that have changed since the last backup.

Changed block tracking enables faster incremental backups and

near-continuous data protection.

Changed Block Tracking

virtual machine H/W

version 7

ctkEnabled=true

scsi0:0.ctkEnabled=true

virtual machine H/W version 9

ctkEnabled=true



-ctk.vmdk -ctk.vmdk-ctk.vmdk


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Data deduplication has the following characteristics:

Does not store twice those blocks with the same information as aprevious backup

Reduces 12 file blocks to 4 unique file blocks

Saves storage capacity

Provides faster backup performance

Data Deduplication

backup 1

backup 2

backup 3

unique file blocks

storage array


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Easy, disk-based backup and recovery solution for virtual machines:

Pre-configured virtual machine appliance

Agent-less, web-based backup and recovery management

Patented de-duplication technology

Entire virtual machine and file-level restores

Included with all versions of VMware vSphere (except Essentials)

VMware vSphere Data Protection


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Scalability (maximums):

100 virtual machines per VDP appliance

10 appliances per vCenter Server

2 TB of deduplicated storage

Appliances deployed with .5 TB, 1 TB, or 2 TB

Efficient backup mechanism:

vSphere API for Data Protection (VADP)

Changed Block Tracking (CBT)

Variable-length segment size

Deduplication across all virtual machines performed in VDP appliance

SCSI hot add, which avoids copying entire .vmdk across network

vSphere Data Protection Details


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Virtual Machine Appliance:

Linux virtual machine .ovapackage

Easy, fast deployment

vSphere Infrastructure:

Changed Block Tracking

VSS in VMware Tools

Appliance Storage Sizes:

.5 TB

1 TB

2TB

vCenter Integration:

Manage through Webclient

vSphere Data Protection Key Components

vSphere vSphere

vCenter ServerVMware vSphere

Web Client


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VDP Appliance

4 vCPUs, 4 GB RAM

850GB, 1.6 TB or 3.1 TB

SLES 11 64-bit

vCenter Server 5.1

vSphere 4.0 or higher

VDP Architecture

Deduplication Store

(.vmdk files)

vSphere

vCenter

Server

vSphere Data

Protection

vSphere Web

Client


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After installation, VDP-configure is in maintenance mode:

Status - Services and logs

Configuration - Network, vCenter, and system settings

Rollback - Roll back repository of backups (more on this later)

Upgrade - Upgrade VDP appliance

VDP Deployment and Configuration


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Virtual Machine Backup

Select objects -

containers (data

center, folder, clusters,

and so on) and

individual virtual

machines


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Restore individual files from backup:

VMware vSphere Data Protection Restore Client:

http://:8580/flr VMware Tools must be installed.

Windows NTFS and Linux LVM, Ext 2, Ext 3 are supported (basicdisks).

File Level Restore (FLR)

View all restore points

or filter by date


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VDP Reporting - User Interface

VDP appliance

capacity

List of virtual

machines, Backup

Jobs, and so on, with

the ability to filter

Success and failures

at a glance

Details for object


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Backing Up vCenter Server

Choose a complementary backup solution that matches your vCenter

Server deployment.

Perform a full backup of your vCenter Server system.

Before starting backups, stop these services:

VMware vCenter Server

VMware VCMSDS (the Active Directory Application Mode database)

Database service (SQL, Oracle, DB2)

Back up the vCenter Server database, using recommended practices

provided by the database vendor.

Back up the SSL certificates.Back up the vpxd.cfgfile.


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Always back up your host configuration after installation, after

changing the configuration, and after upgrading the host.ESXi configuration:

Use the vicfg-cfgbackupcommand.

This command backs up and restores the hosts configuration. Run the command from VMware vSphere Command-Line Interface.

Backing Up ESXi Host Configuration Data


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You should be able to do the following:

Describe the problems when using traditional backup in virtualinfrastructure.

Describe solutions for backing up and restoring virtual machines thatuse virtual infrastructure.

Discuss technologies that make virtual machine backup and restore

operations faster and easier.

Describe how to back up and restore a virtual machine.

Describe how to back up and restore vCenter Server.

Discuss a strategy for backing up and restoring an ESXi hostsconfiguration data.

Review of Learner Objectives


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8-24VMware vSphere: Install, Configure, ManageRevision A

When you plan your backup strategy for virtual machines, be aware of

the various techniques that complement virtual infrastructures. Data Recovery is an agentless, 64-bit, Linux-based virtual appliance

used for backing up and recovering virtual machines.

Data Recovery uses deduplication store technology to make efficientuse of the backup storage.

Data can be restored per virtual machine, per virtual disk, or per file.

Questions?

Key Points

Module - 08 Data Protection

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