How To Protect Your Microsoft Virtualized Environment V2

Hans Vredevoort hans.vredevoort@nobel.nl @hvredevoort

Online Snapshots (up to 512) Active Disk-based Directory® System State Recovery Up to Every 15 minutes Data Protection Data Protection Manager Manager Disaster Recovery with offsite replication & ta Tape-based Backup file services

DPM – Where we are, and where we are going soon • Host-level backup of Hyper-V on WS 2008 DPM 2007 • Protection of Hyper-V Clusters service pack 1 • Quick Migration support • Host-level backup of Hyper-V on WS 2008 R2 • Cluster Shared Volumes (CSV) support DPM 2010 • Seamless protection of Live Migrating VMs • Alternate Host Recovery • Item Level Recovery

Virtualization - Protect from host or guest? Databases I want to selectively backup VMSQL01 in guest individual data objects like DB1 databases & files DB2 I want to backup each virtual Entire SQL VM machine as a single object for HV01 from host protection. Host Configuration VMSQL01

Virtualization - Protect from host or guest? Host Protect or recover the whole machine Protect non-Windows servers No granularity of backup “Bare Metal Recovery” & “Item Level Recovery” of every VM Single DPM license on host, all guests protected Guest Protect or recover data specifically SQL database Exchange SharePoint Files No different than protecting the physical server DPML per Guest Whole Node protection

How Virtual Machine backup snapshots really work The Hyper-V VSS writer

Volume Shadow Copy Framework

Architectural Overview of Online snapshots Hyper-V VSS Writer interacts with a requestor service (Hyper-V VSS IC) within each VM Parent VM1 VM2 Backup App VSS-aware App 1 VSS-aware App 2 VSS VSS VSS Hyper-V VSS Hyper-V VSS IC Hyper-V VSS IC Writer (requestor) (requestor)

Preparing a Snapshot time Parent Child Requestor VSS Hyper-V VSS Hyper-V VSS IC VSS Application (Backup App) Writer (guest requestor) (SQL, Exchange) DoSnapshotSet PrepareForSnapshot Quiesce DoSnapshotSet the app PrepareForSnapshot Take snapshot Take snapshot

Need for a Post Snapshot step time Parent Child Requestor VSS Hyper-V VSS Hyper-V VSS IC VSS Application (Backup App) Writer (guest requestor) (SQL, Exchange) Take snapshot Δt Take snapshot Time lag between snapshot in guest and snapshot in host Potential data corruption if left as is Need the post-snapshot step to fix the data

The Post-Snapshot step Parent Parent Volume Vhd Mounted as a volume on the host snapshot Vhd Snapshots need to be auto-recoverable to allow this to work

Setting up Host Level Protection 1. VMs on Standalone Hosts 2. VMs on CSV Clusters 3. Protecting at Host & Guest Level

Demo Setup

Protecting a Live Migrating VM 1. DPM performs incremental backup of VM from cluster node A 2. The VM is Live Migrated from node A to node C LAN 3. DPM automatically performs the next incremental backup of the live migrated VM DPM 2010 from cluster node C

Building the CSV Awareness HyperV Host HyperV Host Cluster Node A Cluster Node B Move VM VM 1 VM 2 DPM Agent CSV Filter NTFS NTFS DPM Storage Storage Agent CSV Volume DPM Agent on Node A Hardware Snapshot creates a hardware VHD 1 VHD 2 snapshot of the CSV LUN & VHD 1 VHD 2 backs up both VMs from the hardware snapshot

Building the CSV Awareness HyperV Host HyperV Host Cluster Node A Cluster Node B VM 1 DPM VM 2 DPM Agent Agent Network CSV Filter CSV Filter Direct I/O NTFS NTFS NTFS Storage Storage Storage CSV Volume When VM 2 is live migrated from Node-A to Node-B, DPM auto-detects the VHD 1 VHD 2 migration and instructs the DPM Agent on Node B to perform the backup

Building the CSV Awareness HyperV Host HyperV Host Cluster Node A Cluster Node B VM 1 DPM VM 2 DPM Agent Agent CSV Filter Network CSV Filter Direct I/O NTFS NTFS Storage Storage DPM Agent on Node B CSV Volume moves the CSV disk to Hardware Snapshot Node-B, creates a hardware snapshot & VHD 1 VHD 2 VHD 1 VHD 2 backs up VM 2 from the hardware snapshot

Seamless Protection of a Live Migrating VM

Hyper-V Recovery Options – DPM 2010 •VM1 •VM2 •VM3 •VM4 •VM5 •VM6 •CSV

Hyper-V Recovery Options – DPM 2010 •VM1 •VM2 •VM3 •VM •VM4 •VM5 •VM6 •CSV •Option 1 Restore VM back to original host or cluster

Hyper-V Recovery Options – DPM 2010 •VM •Option 1 – Restore VM back to original host or cluster •Option 2 – Restore VM to a different host or cluster

Hyper-V Recovery Options – DPM 2010 •VHD •VM •Temporary within DPM server •FS1shareitem.doc •Option 1 – Restore VM back to original host or clu •Option 2 – Restore VM to a different host or cluste •Option 3 – Item Level Recovery (ILR) to file share

Restoring a VM • Restore to Original Location • Restore to an alternate location • Item Level Restore

DPM2010 Upgrade Advisor

Planning the deployment

DPM – designed for Hyper-V Incremental Backups Only – full only once No More Backup Window – online backups Application consistency via VSS Protect Live Migration VMs in CSV clusters Protect whole VM, recover individual items Auto Protection of new VMs Routine backups – nightly or more frequently

Best for Windows file and application servers – from Microsoft Built for Microsoft Virtualization environments Designed for Windows Clients Enterprise-Ready scalability and reliability

Interesting links Tested VSS hardware providers http://blogs.technet.com/dpm/archive/2010/02/05/tested-hardware-vss- provider-table.aspx Storage calculators for DPM 2010 (draft) http://www.microsoft.com/downloads/details.aspx?FamilyID=C136C66C-BD4A- 4FB1-8088-F610CD02DC51&displaylang=en DPM 2010 Upgrade Advisor http://blogs.technet.com/dpm/archive/2010/02/26/upgrade-advisor-for-dpm- 2010-now-available.aspx Official DPM Blog http://blogs.technet.com/dpm/ Official DPM Website http://technet.microsoft.com/en-us/systemcenter/dm/default.aspx

Blog http://hyper-v.nu/blogs/hans Twitter http://www.twitter.com/hvredevoort Linked-In http://nl.linkedin.com/in/vredevoort Mail hans.vredevoort@nobel.nl hans.vredevoort@nobel.nl

How To Protect Your Microsoft Virtualized Environment V2

by Nobel on Mar 08, 2010

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How To Protect Your Microsoft Virtualized Environment V2 — Presentation Transcript