Server Virtualization Backups, Disaster Recovery, Business Continuity Steve Evans

Microsoft MVP, Directory Services Blog – Twitter SerkTools ( – Content Creation/Delivery Screencast, Whitepapers, Blogging, Events – Consulting Microsoft IT Infrastructure (Active Directory, SQL, SharePoint, Exchange, Identity, etc) Steve Evans

Agenda High Availability SnapshotsBackupBare Metal Restore

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 High Availability Snapshots BackupBare Metal Restore

Anatomy of a Snapshot Physical Volume VHD AVHD (0) AVHD (1) AVHD (2) AVHD (3) ?????

Virtual Machine Snapshots Not for Disaster Recovery Performance Concerns Great for roll- back plan

Agenda High AvailabilitySnapshots Backup Bare Metal Restore

WSB/DPM 2007 – Direct Guest Hyper-V Windows SQL Server NTFS becomes consistent 2.SQL becomes consistent 3.Backup Snapped Disk DPM Agent

WSB/DPM 2007 – VSS Enabled Guests Hyper-V Windows SQL Server 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 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 OSs 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\WindowsServerBack up\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 VMs to Alternate Hosts Individual file-item restore – Files only though, SQL/Exchange/etc not covered

Agenda High AvailabilitySnapshotsBackup Bare Metal Restore

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

Microsoft MVP, Directory Services Blog – Twitter SerkTools ( – Content Creation/Delivery Screencast, Whitepapers, Blogging, Events – Consulting Microsoft IT Infrastructure (Active Directory, SQL, SharePoint, Exchange, Identity, etc) Steve Evans