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Scenario:
several VM backed up with differential onediff from hostA to a NAS datastore. What can happen if i try to backup, using onediff, the XSIBAK VM's from hostA to another esxi hostB?
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For a VM to be susceptible of a OneDiff backup, the VM has to be running on top of a snapshot. As it's only one snapshot, performance doesn't degrade perceptibly. A OneDiff mirror (_XSIBAK) cannot be OneDiff'ed, if you do, you will modify the .vmdk disks CID and the following primary OneDiff cicle will detect this condition and reinitialize the mirror, causing the VM to be copied entirely each time.
What we recommend is backing up using OneDiff and then archive the VM by using [b][https://33hops.com/xsitools-vmfs-deduplication.html]XSITools[/url][/b] to a de-duplicated repository. As the VMs will be stored in 50M chunks by default, if you then use Rsync to mirror the repository somewhere else, it will be blazing fast, if you use size + modified date comparison.
Dwonload v 10.0.3 to use OneDiff, as it contains some bug fixes.
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