Transcript Slide 1
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
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
CONs
Easily backup physical systems
Agents available many applications
Granular control
and administration at each layer
of backup infrastructure
Can be installed in virtual machine
May miss out on additional
frameworks and APIs
May not work correctly if agent
is not running
Additional management burden
and permission configuration
Not necessarily optimized
for virtual machines
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 and CONs of Physical Backups
PROs
CONs
Agentless backups
may miss granular recovery
or application consistency
Early generation
virtual backups may only take
crash-consistent backups
Recovery may be complex
Easily backup virtual systems
Can move data very fast
Can be agentless-based backups
Can be very easy to manage
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
Writers
SQL, Exchange,
Active Directory,
Oracle,
SharePoint
Volume Shadow Copy Service
Requestor
Provider
Backup
software
Operating system,
storage array
or system provider
Disk volume
More options with virtualization platforms
Framework such as APIs make
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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
Virtual Machines
Restore
Physical Machines
Common restore scenarios
Important
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
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
Scale
Technologies
Requirements
Abilities
Regulation
Compliance
Funding
Current
state
Expectations
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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