Server VirtualizationBackups, Disaster Recovery,

Business Continuity

Steve Evanshttp://SerkTools.com

• Microsoft MVP, Directory Services• Blog – http://SerkTools.com• Twitter - @scevans• SerkTools (http://SerkTools.com)– Content Creation/Delivery• Screencast, Whitepapers, Blogging, Events

– Consulting• Microsoft IT Infrastructure (Active Directory, SQL,

SharePoint, Exchange, Identity, etc)

Steve Evans

Agenda

Stand Alone

Application

Data

Free

Simple

Good Enough?

Application Redundancy

Application

Data

Application

Data

AD/DNS/SMTP

Protocol Support

Perfect!

Load Balancer

Application

Data

Application

Data

Load Balancer

Web/RDS

App Support Helps

Fail Over Clustering

Application

Data

Application

Data

File Services/SQL

Shared Storage

Complicated

Live Migrate

Guest Level Clustering

Application Agnostic

Simplified Guests

Agenda

Anatomy of a Snapshot

Physical Volume

?????

Virtual Machine Snapshots

Not for Disaster Recovery

Performance Concerns

Great for roll-back plan

Agenda

WSB/DPM 2007 – Direct Guest

Hyper-V

Windows 2003+SQL Server 2005+

1. NTFS becomes consistent

2. SQL becomes consistent

3. Backup Snapped Disk

DPM Agent

WSB/DPM 2007 – VSS Enabled Guests

Hyper-V

Windows 2003+SQL Server 2005+

1. Host talks to VSS Writers on Guests

2. NTFS becomes consistent

3. SQL becomes consistent

4. Backup Snapped Disk

NO DPM Agent

DPM Agent

WSB/DPM 2007 – Non-VSS Guests

Hyper-V

NT 4.0

1. Suspend Guest OS

2. Snap Host Disk with VSS

3. Resume Guest OS

4. Backup Snapped Disk

Host Level Backups: Advantages

• Backup is Comprehensive– Bare Metal Recovery– Virtual Networks not included

• Licensing Costs– WSB Free Though

• Single Solution for all OS’s• Simple(ish)

Host Level Backups: Disadvantages

• Natively No Restore Granularity• Natively Does Not Support Multiple Snapshots• Guest will enter Saved State If:– No VSS Support (Windows 2000, NT, Non-

Windows)– Integration Services not installed– Volume Backup Component disabled

• Be Aware of Non-VSS Aware Apps (eg Oracle)• Guest can not use dynamic disks

Enable Hyper-V VSS Backup

reg ADD HKLM\Software\Microsoft\Windows NT\CurrentVersion\

WindowsServerBackup\Application Support\{66841CD4-6DED-4F4B-8F17-

FD23F8DDC3DE}/V Application Identifier /T Reg_SZ

/D Hyper-V /F

Windows Server Backup: Hyper-V Restore

DPM 2007 Advantages

• VM Level Restore Granularity• Integrated Physical/Guest Level/Host Level

Solution• Server Management Suite– License for every OS on a physical machine:• Operations Manager• Configuration Manager• Data Protection Manager• Virtual Machine Manager

DPM 2010 & Hyper-V R2

• Restore VM’s to Alternate Hosts• Individual file-item restore– Files only though, SQL/Exchange/etc not covered

Agenda

Bare Metal Restore

• Restore Host Level Backup• Deploy from Template– Group Policy Configuration• Windows Firewall• Services• Scheduled Tasks• File System ACL’s• Folder Shares• Etc

• Microsoft MVP, Directory Services• Blog – http://SerkTools.com• Twitter - @scevans• SerkTools (http://SerkTools.com)– Content Creation/Delivery• Screencast, Whitepapers, Blogging, Events

– Consulting• Microsoft IT Infrastructure (Active Directory, SQL,

SharePoint, Exchange, Identity, etc)

Steve Evans