Server Virtualization Backups, Disaster Recovery, Business Continuity

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Server VirtualizationBackups, Disaster Recovery,
Business Continuity

• Steve Evans
• http//SerkTools.com

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Steve Evans

• Microsoft MVP, Directory Services
• Blog http//SerkTools.com
• Twitter - _at_scevans
• SerkTools (http//SerkTools.com)
• Content Creation/Delivery
• Screencast, Whitepapers, Blogging, Events
• Consulting
• Microsoft IT Infrastructure (Active Directory,
  SQL, SharePoint, Exchange, Identity, etc)

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Agenda
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Stand Alone
Free Simple Good Enough?
Application
Data
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Application Redundancy
AD/DNS/SMTP Protocol Support Perfect!
Application
Application
Data
Data
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Load Balancer
Load Balancer
Web/RDS App Support Helps
Application
Application
Data
Data
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Fail Over Clustering
Application
Application
File Services/SQL Shared Storage Complicated
Data
Data
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Live Migrate
Guest Level Clustering Application
Agnostic Simplified Guests
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Agenda
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Anatomy of a Snapshot
Physical Volume
?
?
?
?
?
VHD
AVHD (0)
AVHD (1)
AVHD (2)
AVHD (3)
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Virtual Machine Snapshots
Not for Disaster Recovery
Performance Concerns
Great for roll-back plan
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Agenda
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WSB/DPM 2007 Direct Guest

• NTFS becomes consistent
• SQL becomes consistent
• Backup Snapped Disk

Windows 2003 SQL Server 2005
DPM Agent
Hyper-V
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WSB/DPM 2007 VSS Enabled Guests

• Host talks to VSS Writers on Guests
• NTFS becomes consistent
• SQL becomes consistent
• Backup Snapped Disk

NO DPM Agent
Windows 2003 SQL Server 2005
Hyper-V
DPM Agent
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WSB/DPM 2007 Non-VSS Guests

• Suspend Guest OS
• Snap Host Disk with VSS
• Resume Guest OS
• Backup Snapped Disk

NT 4.0
Hyper-V
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Host Level Backups Advantages

• Backup is Comprehensive
• Bare Metal Recovery
• Virtual Networks not included
• Licensing Costs
• WSB Free Though
• Single Solution for all OSs
• Simple(ish)

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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

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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
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Windows Server Backup Hyper-V Restore
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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

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DPM 2010 Hyper-V R2

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

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Agenda
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Bare Metal Restore

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

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Steve Evans

• Microsoft MVP, Directory Services
• Blog http//SerkTools.com
• Twitter - _at_scevans
• SerkTools (http//SerkTools.com)
• Content Creation/Delivery
• Screencast, Whitepapers, Blogging, Events
• Consulting
• Microsoft IT Infrastructure (Active Directory,
  SQL, SharePoint, Exchange, Identity, etc)