2012 10-sep-gwava-backup-virt-environment

SEP @ GwavaConBackup in virtualized

environmentsHubert Schweinesbeinhs@sep.de

The Company

German vendor of Backup and Disaster Recovery Software.

Headquarter in Weyarn, near Munich.German development – german support!

Subsidaries in Germany and USA

World Wide Sales via Partners> 3500 Customers in > 45 countries

Hoppenstedt Top Financial Rating – only 3,3% of all German companies got a a No. 1 rating.

The History

Development oflogistics SW

Develop Backup and data protection Software – VMS (92)

Spin off logistic SW - SEP Logistik AG

Development sesam2000 Backup for NT/Unix/Linux

Define Linux Strategy

EstablishSEP AG

established, Systemintegration

HW development

19901980 2000

Logisticsoftware Relag

Dataprotection and logistics

patented processes

SEP sesam 2000Software only

International expansion 2008

2008

SEP sesam Backup for all

Database – hot backup extensions

Operating System / Filesystem

OS/2 VMSFreeBSD

Virtualis ation

Bare M

achineR

ecove ry

Update / T

raini ng / Su pport

Applications backup

5

Backup - fundamentals

System

Database

Data / File

Critical

Systemstate Registry HAL(Hardware

Abstraction Layer) Partition information

Bootloader ...

6

Restore – fundamentals :-)

SystemCritical

Data / File

Database

Systemstate Registry HAL(Hardware

Abstraction Layer) Partition information

Bootloader ...

All Backup is only done for the ability to proceed a fast and consistent restore!!

7

Backup in a Virtual

Environment

System

Database

Data / File

Critical

Hypervisor

8

Backup in a virtual

environment – with API

Hypervisor (Citrix Xen, VMware, Hyper V)

Guest1 ... GuestN

Ba

ckup A

PI

Database

Binaries / File

Hot Backup via Backup Agent

Snapshot via Backup API

9

Backup - Strategies

in Virtual Environments • Differentiate

– dynamic Data – like Database and Files– unchanged files – like Application binaries – Systeminformation

• Don't forget the Host itself

Backup - Strategies

in Virtual Environments Snapshot backup

• Image copy of the whole virtual Disk– open Database --> corrupt

– open Files → ??

– restore only of the whole image – single file restore not possible

• Applicable for System backup

• Applicable for fixed data like– Infrastructure and Application server

– DHCP, DNS, Print – but not always for a file server!!

Backup - Strategies

in Virtual EnvironmentsSnapshot backup - the next• Recommendation

– Define a dedicated virtual disk for each snapshot area==> 2 LVM partitions per guest

• System and Data

• Differentiate VMware, Citrix XenServer, HyperV and the rest

provides VCB / VADP Interface Snapshot stops the guest

provides VSS Interface provides Citrix XenServer API

Different Hypervisors• VMware

– VCB (old) / VADP Interface

– Vcenter always required

– Uniterrupted Snapshot possible

Consistence of system information and data

Incremental backup, single file restore

Windows Guest Backup via integrated VSS→ Consistent VSS Backup of MS SQL / MS Exchange→ Restore the complete Snapshot – no single DB or Mail

• Hyper V– Backup API available (VSS)

Uniterrupted Snapshot possible - only complete Snapshot – no single file restore; No incremental backup

Windows Guest Backup via VSS→ Consistent VSS Backup of MS SQL / MS Exchange→ Restore the complete Snapshot – no single DB or Mail

Citrix XenServer– Backup API available

Windows Guest Backup via VSS→ Consistent VSS Backup of MS SQL / MS Exchange→ Restore the complete Snapshot – no single DB or Mail

– Uniterrupted Snapshot possible - only complete Snapshot – no single file restore

– No incremental backup

Xen Source / KVM

– Use a Script to generate a Snapshot via Linux LVM – stops the guest – see SEP wiki.

Requirements summary• Applicable for different Hypervisors• Backup for all Operatingsystems – virtual and real• Online Modules for Database Backup• Don't forget the real world – use the same backup system for

virtual and physical Servers• ==> SEP

we can !!!

Thanks - Your questions?

Hubert Schweinesbeinhs@sep.de