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
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 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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