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To summarize, we want to be communicated to users that snapshots do not qualify as a disaster recovery strategy.
But they are a good addition to an existing strategy.
Crash-Consistent
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snapshots
Nutanix introduces this terminology in the article Local Backup with Snapshot
The Crash-Consistent snapshot contains an immediate state of the disk. As if there was a power cut-off at the point of
snapshot creation. Whatever was in memory is lost. They also mention that for For modern applications, Crash-Consistent
snapshots are enough
because they are designed to tolerate power cut-offs.The The application-consistent snapshot is created with the
collaboration of the app running in the VM. Of course,
the application needs to be aware of the snapshot being taken
to flush all the data before it happens.
Note the long list of requirements to enable Application-Consistent snapshot.
Application concern of EVE-OS volume snapshots
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