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Backup and recovery for virtualized environments

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Virtualized environments running independently on a hypervisor always bring up the question of protection. Should you install the agent in the guest? Can you offload the backup to another host? Can …

Virtualized environments running independently on a hypervisor always bring up the question of protection. Should you install the agent in the guest? Can you offload the backup to another host? Can you use hardware acceleration for backup? In this session we’ll address all those questions in the context of leading virtualization solutions such as vSphere, HyperV, or Citrix XEN. Then we’ll show you eight ways you can use HP Data Protector to protect your environment, including our market-leading functionality for hardware acceleration using Zero Downtime Backup.


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  • 1. Backup and recovery for virtualized environments HP Data Protector Software Vinay Kumar Program Manager 1 ©2010 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice
  • 2. Agenda Virtualization: Challenges HP Solution - VMware, Hyper-V & Citrix - Other Virtualization Products Summary & Questions 2
  • 3. Virtualization : Challenges 3
  • 4. Server Virtualization creates new challenges in data protection ―Server virtualization has greatly reduced infrastructure costs, but it has also complicated backups‖ Forrester  96% of enterprises say server virtualization will have an impact on their backup strategy  87% consider virtual server backup as an important component of data protection 4
  • 5. Virtual Environments What needs to be protected ? – VM information • Protects the configuration details • Enables Restore of VM image Virtual Machine App • No Application data protection OS – Application data • Protects Application data in online Host OS/Hypervisor mode. • EnablesAutomated recovery of Application – Disaster Tolerance • Provides cross site protection 5
  • 6. HP Solution VMware, Hyper-V & Citrix 6
  • 7. HP Data Protector Software Mitigating the risk of data loss in virtualized environments Choose your hypervisor! One product for physical and virtual environments 8 different ways to protect VMware & Hyper-V Pick which methods best suit your virtual environment No scripting simplifies administration while providing the greatest number of backup and restore options Better with HP StorageWorks EVA & XP Together Highest level RPO/RTO for virtualized mission critical applications Zero impact to the virtual infrastructure 7
  • 8. HP Data Protector Software Pick methods that best suit your VMware environment 1. Suspend virtual machine One interface  HP Data Protector 2. Traditional Online backup extension in the virtual machine 3. ESX Snapshot via the console 4. Recovery of ESX Snapshots 5. VMware Consolidated Backup VMware ESX Server 6. FULL restore of VM 7. Zero Downtime Backup 8. Instant Recovery No scripting  simple radio button selections ―Virtualization requires a combination of physical and virtual backup and recovery mechanisms‖ – Enterprise Management Associates 8
  • 9. HP Data Protector Software VMware Support Overview DP VMware Integration Agent DP Filesystem and Integration Agents ESX Server 1 Database 4 2 ESX Console OS SAN Virtual Center Server VCB Proxy DP VMware Integration 3 Agent: Console based snapshot FC attached DP VMware storage Integration Agent: VCB Tape/Disk target 9
  • 10. HP Data Protector Software 1 Vmware—DP Server/Agents Inside the VM Virtual Machines Concept • Virtualize the backup infrastructure • Treat VM as a standalone system. Components supported DP DP DP • Cell Manager/Installation Server/Graphical User Server Agent Agent Interface • Disk Agent • Online Integrations Agents Console OS • Zero Downtime Backup and Instant Recovery Agents Usage • Filesystem backup for data in VM • Online backup of Application data in VM (eg. Oracle, SAP, SQL etc…) ESX/ESXi Server • Array based Zero Impact backup and Instant Recovery for applications Benefits • Virtualize the Management Server • Leverage rich biz application support of DP • Enable Point-in-time recovery for the Applications • VM based backup schema is virtualizer independent • doesn‘t require shared storage or SAN 10
  • 11. HP Data Protector Software 2 VMware–ESX Console-based Snapshots Virtual Machines Concept • Leverage ESX snapshot API to manage snapshots from the ESX console. Components supported • VMware Integration Agent Console OS DP VMware agent • Media Agent on ESX Console** Usage • Online and offline snapshots of VMs. ESX Server • Incremental and Differential snapshots Benefits •Disaster Recovery of ESX environments • Automation of backup and restore of VM snapshots. • Reduce data backup volume with incremental and differential snapshots. ** VMware Knowledgebase Article documenting support for Data Protector and FC connected VLS and D2D http://kb.vmware.com/selfservice/microsites/microsite.do?cmd=displayKC&docType=kc&externalId=1016289& sliceId=1&docTypeID=DT_KB_1_1 11
  • 12. HP Data Protector Software 2 ESX Console-based Snapshots—Backup Types – Full Backup • Backup of the base copy including any un-merged snapshots. • Includes user created snapshots as well. – Incremental Backup • Changes since last backup. – Differential Backup • Changes since last full backup. – Mixed mode • Mix up Incremental and Differential Backups in a single backup chain. – Offline Backup • DP treats offline backup same as online backup 12
  • 13. HP Data Protector Software 2 ESX Console-based Snapshots—Backup Types FULL BACKUP Merge base with delta Create snapshot LAN VM DP VMware Console OS agent ESX Server Transfer snapshot to tape/disk 13
  • 14. HP Data Protector Software 2 ESX Console-based Snapshots—Backup Types FULL BACKUP WITH OPTION ‗SINGLE‘ Create snapshot LAN VM DP VMware Console OS agent ESX Server Transfer snapshot to tape/disk 14
  • 15. HP Data Protector Software 2 ESX Console-based Snapshots—Backup Types INCREMENTAL BACKUP Merge base with Create snapshot incremental LAN VM DP VMware Console OS agent ESX Server Transfer incr. snapshot to tape/disk 15
  • 16. HP Data Protector Software 2 ESX Console-based Snapshots—Backup Types DIFFERENTIAL BACKUP Merge base with incremental Create snapshot LAN VM DP VMware Console OS agent ESX Server Transfer incr. snapshot to tape/disk 16
  • 17. HP Data Protector Software 2 ESX Console-based Snapshots—Backup Types Incr./Diff. – Incr./Diff. mixed Full Full backup backup Incremental Incremental Incremental (Includes Incremental Delta2 Delta4) Delta5 Delta1 Delta3 base Delta1 Delta2 Delta3 Delta4 Delta5 time Differential3 Full Full Delta1 + backup Differential2 Delta2 + backup Delta3 Differential1 Delta1+ (Includes Differential4 Delta4) Delta1 Delta2 Delta5 base Delta1 Delta2 Delta3 Delta4 Delta5 time Differential backup includes Delta5 + Delta6 + Delta7 Full Differential backup includes Full Delta1 + Delta2 + Delta3 + Delta4 backup backup (Includes Incremental Delta8) Incremental Incremental Delta3 Incremental Incremental Delta1 Delta6 Delta7 Delta2 base Delta1 Delta2 Delta3 Delta4 Delta5 Delta6 Delta7 Delta8 time 17
  • 18. HP Data Protector Software 2 VMware Consolidated Backup Concept • Leverage VMware‘s Consolidated Backup capability to provide SAN based snapshot backups for Virtual Machines. Virtual Machines • Offload Backup from the ESX Server. Mounted VM snapshot Components supported • VMware Integration Agent • Media Agent on VCB Proxy host Console OS DP Agent Usage • Online and offline snapshots of VMs. Proxy Host ESX /ESXi Server • File level Backup and recovery of data in the VMs. Benefits SAN • Disaster Recovery of ESX environments • Automation of backup and restore of VM snapshots. • Offload the Backup load from the ESX Server to the proxy host. • SAN based Backup and Recovery for Virtual Machines. 18
  • 19. HP Data Protector Software 2 VCB—Backup Types Supported… – VCB Image Backup: • Online and offline snapshots • Full Backup only – VCB File Backup • Full Backup • Incremental and Differential Backups − based on per-file modification time: • Incremental contains changes since previous backup • Differential contains changes since latest full backup 19
  • 20. HP Data Protector Software 3 VCB Integration Overview VM Proxy/ Initiate backup LAN DP Agent Restore from tape/disk with ESX / ESXi Server DP SAN Backup to tape/disk with DP Delete snapshot Create snapshot Mount snapshot Backup Restore 20
  • 21. Protecting Mission Critical VMware Setups 1 Why HP Data Protector Software ? – Impact free VM backup and Recovery • Data Protector integration in VMware Consolidated Backup – The HP Advantage • Taking VM data protection to the next level − Remove the backup load from VM to a backup server with Data Protector Zero Downtime Backup − Reduce application recovery times from hours to minutes with Data Protector Instant Recovery • Disaster Tolerance − Build disaster tolerance in VMware setups with HP Continuous Access. − Protect against complete site failures 21
  • 22. HP Data Protector Software 1 Backup–VCB+ZDB Simple two step backup for complete protection ESX/ESXi Server ESX/ESXi Server After initial backup, needed only in case the base VM config. changes ESX Server Logs/ctrl Logs/ctrl files files Link CA SAN Datafiles Datafiles SAN OS/App OS/App CA Link Backup/Proxy Host Logs/ctrl Logs/ctrl Backup/Proxy Host files files Datafiles Datafiles Tape VTL 22
  • 23. HP Data Protector Software 1 Recovery–VCB+Tape Restore/Instant Recovery Two step restore process that provides full recovery of VM and data ESX/ESXi Server ESX/ESXi Server Needed only in case the whole VM is lost of restore VM to new location. Logs/ctrl Logs/ctrl files files Link CA SAN Datafiles Datafiles SAN OS/App OS/App CA Link Logs/ctrl Logs/ctrl Backup/Proxy Host Backup/Proxy Host files files Datafiles Datafiles Tape VTL 23
  • 24. HP Data Protector Software Pick methods that best suit your Hyper-V environment 1. Traditional Online backup One interface  extension in the virtual machine HP Data Protector 2. VSS system provider snaps 3. VSS hardware provider snaps 4. Full restore of VM 5. Partial restore of files 6. Offline Backup for VMs 7. Zero Downtime Backup 8. Instant Recovery No scripting  simple menu selections 24
  • 25. HP Data Protector Software Hyper-V: VSS Software Snapshots Concept GUI Cell Manager • Integration with the Microsoft VSS Software Provider to create Volume Shadow Copies • Integrate with Microsoft VSS Hyper-V writer to create consistent snapshots of Virtual Machines LAN Usage • Microsoft VSS software snapshots for Virtual Machines. Virtual Machines • Online and Offline backup of Windows Virtual Machines • Offline backup of non-Windows Virtual Machines Media Server Benefits Hyper-V Server •Disaster Recovery for Hyper-V environment copy • Consistent Backup of Virtual Machines • ‗Single Pass‘ Application aware backup for applications like Exchange, SQL, SharePoint, along with VM backup. • Storage Array independent snapshot backup and recovery capability. 25
  • 26. HP Data Protector Software Hyper-V: VSS—Array Based Snapshots Virtual Machines Concept • Integrate with Microsoft VSS Hyper-V writer to create consistent snapshots of Virtual Machines • Integrate with the Array Hardware Providers for Array based backups. Usage Hyper-V Server • Array based snapshots for Virtual Machines using Microsoft VSS. Logs/ctrl files •Enable Transportable snapshots, • Online and Offline backup of Windows Virtual SAN Datafiles Machines OS/App • Offline backup of non-Windows Virtual Machines Benefits Backup Host Logs/ctrl files •Disaster Recovery for Hyper-V environment Datafiles • SAN based Backup OS/App • ‗Single Pass‘ Application aware backup for applications like Exchange, SQL, SharePoint, along with VM backup. • Zero Downtime Backup and Instant Recovery for VM and application data in a single pass. • Offload the Backup and Recovery load from the Hyper-V server 26
  • 27. HP Data Protector Software Complete, Advanced, Recovery for VMware & Hyper-V Multiple options to simplify the management of virtual machine backups Complete Protection Protecting Traditional ESX VCB Hyper-V Hyper-V HW Data Protector VMware & Agent in VM SNAPSHOTS (off-load) VSS (off-load) ZDB / IR Hyper-V Challenge 1 Limits Limits Off loads to Limits Off loads to No Load on Overloading number of number of dedicated number of dedicated ESX servers physical VMs per host VMs per host proxy host VMs per proxy host servers host Challenge 2 Traditional Complete Guarantee of file level VSS writers called application data backup Crash consistent inside the VM consistency recovery - No Application Challenge 3 Consistency Standard Instant Recovery Recovery - No roll-forward Recovery with to ANY with Roll- Risk of data loss Roll-forward point in time forward 27
  • 28. HP Data Protector Software Pick methods that best suit your Citrix XenServer environment 1. Traditional Online backup Citrix XenServer extension in the virtual machine App App 2. Online Snapshots based backup1 3. Offline Snapshots based backup1 4. FULL restore of VM One interface  HP Data Protector 1) Requires scripts 28
  • 29. HP Solution Other virtualization products 29
  • 30. HP Data Protector Software Other Virtualization solutions MS Virtual Server HP Integrity VMs Agent in the VM – Backup file system data in the VM – Single object backup and recovery – Leverage the rich & seamless Data Protector application integration – Restore and automated recovery of applications to the any point in time Agent on the hosting OS Sun Solaris Zones – Connect Tape/disk target directly to the Host OS • enabling SAN backups – Enable Disaster Recovery capability • Restore whole VM/Local Zone 30
  • 31. Protecting Virtualized Environments HP Data Protector Software Summary • Single product to protect all different virtualization solutions • Broad Coverage of Virtualization Solutions • x86/X64, HP Integrity, SUN Sparc • Protect both Physical and Virtual Environments with one product. • Comprehensive Data Protection capabilities • Extend the existing feature set in Physical Environments to Virtual Environments • Out of the box replication based backup provide easy adoption for virtualized environments • Delivering new user experirences • Ongoing Enhancements….. 31
  • 32. QUESTIONS? Thank you. 32
  • 33. To learn more on this topic, and to connect with your peers after the conference, visit the HP Software Solutions Community: www.hp.com/go/swcommunity 33 ©2010 Hewlett-Packard Development Company, L.P.
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