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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