Backing up enterprise applications - Elias Khnaser
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    Backing up enterprise applications - Elias Khnaser Backing up enterprise applications - Elias Khnaser Presentation Transcript

    • Backing up Enterprise Applications: Transaction Consistency is Key
      Elias Khnaser
      www.eliaskhnaser.com
      Twitter: @ekhnaser
    • About Elias Khnaser
    • Agenda
      What Is Volume Shadow Copy Services (VSS)?
      Why VSS?
      VSS Components
      Native Operating System VSS Backup
      VMware vSphere 4.x Backups
      Agent Assisted VSS Aware Backups
      How Volume Shadow Copies Are Created
      Agent Assisted VSS Aware Restore
    • What is Volume Shadow Copy Services (VSS)?
      VSS is Windows framework for application backups
      VSS is a built-in Windows service that facilitates and coordinates the creation of consistent copies of Transaction-based application data
      2 methods for creating Shadow Copies:
      Clone (Full Clone/Split Mirror)
      Copy-on-Write (Difference File)
      Transaction-based applications
      Exchange SQL Active Directory More
    • Why VSS?
      Avoid crash-consistent backups
      Crash-consistent is a nice way of saying hard stop
      Application awareness
      Avoidance of manual post restore tasks
      Application consistency is critical
      VM
      Windows
      VM
      Windows
      VM
      Windows
      VM
      Windows
      VM
      Windows
      Backup
      VM
      Windows
      VM
      Windows
      VM
      Windows
      VM
      Windows
      VM
      Windows
      Restore
    • VSS Components
      Volume Shadow Copy Service is a service that coordinates the function of all components to create the shadow copy
      Requestors initiate Shadow Copy Creation
      Writers prevent data inconsistency
      Providers create the Shadow Copy
      System Provider
      Hardware Providers
      Software Providers
      Source Volume is the volume that contains the data to be shadowed
      Storage Volume is the volume that holds the shadow copy
      A number of providers available
    • Native Operating System VSS Backup
      Volume Shadow Copy Service
      Writers
      Requestor
      Provider
      Disk Volume
      SQL, Exchange,
      Active Directory,
      Oracle, SharePoint
      Backup
      software
      Operating
      system, storage array or system provider
    • VMware Tools doesn’t quiesce applications
      May impact recovery
      VMware vSphere 4.x Backups
      VMware Tools is for quiescing filesystem with VSS
      Image level backup that is crash consistent
      Volume Shadow Copy Service
      Writers
      Requestor
      Provider
      Disk Volume
      SQL, Exchange,
      Active Directory,
      Oracle, SharePoint
      ESXi Host
      VMware Tools
      Disk Volume
      Operating
      system, storage array or system provider
    • Want more?
      See the rest and watch more training videos at www.backupacademy.com