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Efficiency
Backup and restore
Guest backup and restore:
Offers highest level of data deduplication efficiency
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Backups do not consume ESX server CPU, RAM, and disk resources
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Backups consume small amounts of guest virtual machine CPU, RAM, and disk
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resources when backups are occurring
Avamar for VMware Image backup and restore:
Moderate deduplication efficiency
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Backups do not consume guest virtual machine CPU, RAM, and disk resources
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Backups consume ESX server CPU, RAM, and disk resources when backups are
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occurring
Guest backup and restore:
Applications are gracefully quiesced prior to each backup, ensuring a true "application
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consistent" backup
Backups are highly optimized (temp files, swap files, and so forth not included)
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Backups are highly customizable (supports full range of include and exclude features)
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Database backups support transaction log truncation, and other advanced features
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Unused filesystem space is not backed up
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Individual file and directory (folder) restores supported
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Backup and restore jobs can execute pre- and post-processing scripts
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Virtual machines must have a network connection to Avamar server
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Virtual machines must be running for backups to occur
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Avamar for VMware Image backup and restore:
Image backups are supported for all machines that are currently supported by VMware
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Individual file and directory (folder) restores supported for both Windows and Linux
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virtual machines
Virtual machines need not have a network connection to Avamar server
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Virtual machines need not be running for backups to occur
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Unused filesystem space is backed up
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Backups not optimized (temp files, swap files, and so forth are included)
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Backups can comprise an entire virtual machine image (all drives) or selected drives
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(vmdk files)
Choosing a data protection method
Introduction
17
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