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Physical vs. Virtual Backups. Rick Vanover. MCITP vExpert VCP Veeam Software. http://www.veeam.com/blog Twitter : @ RickVanover @ Veeam. About the Speaker. Contributor to industry publications. Agenda. How backups for physical systems work How backups for virtual machines work - PowerPoint PPT PresentationTRANSCRIPT
http://www.veeam.com/blog
Twitter: @RickVanover @Veeam
Physical vs. Virtual BackupsRick VanoverMCITP vExpert VCPVeeam Software
About the Speaker
Contributor to industry publications
Agenda
How backups for physical systems work
How backups for virtual machines work
What frameworks are available for backups
How restore situations are impacted
Service catalogs and virtualization’s impact
Opportunities by platform
Considerations for licensing, management and administration
How backups for physical systems work
Generally independent of server model Software installed within operating system (Agent)
PROs and CONs of Physical Backups
PROs
Easily backup physical systems Agents available many applications Granular control
and administration at each layer of backup infrastructure
Can be installed in virtual machine
CONs
May miss out on additionalframeworks and APIs
May not work correctly if agent is not running
Additional management burdenand permission configuration
Not necessarily optimized for virtual machines
PROs and CONs of Physical Backups
How backups for virtual systems work
Leverage platform features: Hyper-V and vSphere APIs Commands usually sent to a parent object: host, cluster,
management server, etc.
PROs
Easily backup virtual systems Can move data very fast Can be agentless-based backups Can be very easy to manage
CONs
Agentless backups may miss granular recovery or application consistency
Early generation virtual backups may only takecrash-consistent backups
Recovery may be complex
Key technology for both backups
Degrees of backup consistency Crash consistent File system consistent Application consistent
Best option for recoverability VSS shown below for Windows systems
SQL, Exchange, Active Directory,
Oracle, SharePoint
Backup software
Operating system, storage array
or system providerDisk volume
Volume Shadow Copy Service
Provider
RequestorWriters
More options with virtualization platforms
Framework such as APIs make
● vStorage APIs for data protection● Web Services● PowerShell● Windows Management Instrumentation
Many technologies for technology today
Impacts every area of datacenter Stakeholders need to be informed and satisfied Business discussions need to happen as well
Mix of technologies
The fact is, many environments will have both virtual machines and physical systems● Mainstream platforms● Different platforms, specialty systems
Multiple tools may be required for each platform to deliver the best results
Restore
Virtual Machines
Physical Machines
Common restore scenarios
File restores Most common restore situation Operating system type, file system, and permissions
are important
Application data restores Structured data constructs Items
Wildcard restores Don’t know what is needed, but not a whole system restore
Full restores
Important
Full restores are different for each platform
Physical machines Bare metal recovery options available Like hardware requirements may exist Base operating system and agent
Virtual machines Image-based can inject back into hypervisor Physical restore systems may work on virtual machines Abstracted restore destination inherently possible
Service catalogs and virtualization
Virtualization is impactful to existing procedures
Technologies Requirements
Regulation Compliance
Expectations
Scale
Funding
Current state
Abilities
Considerations for backups and data protection
Licensing● Scaling, purchasing, organic growth● Some amount of virtualization likely
Administration and operations● Updates● Data durability
Management● Ensuring proper visibility● Accommodate organic growth
What We Covered
How backups for physical systems work
How backups for virtual machines work
What frameworks are available for backups
How restore situations are impacted
Service catalogs and virtualization’s impact
Opportunities by platform
Considerations for licensing, management and administration
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