On 2023-06-05 09:14, Alvin Starr via talk wrote:
Does anybody know of an volume based backup solution that can work in
an incremental manner?
This questions has big unstated conditional. Are you looking for
A) 'volume based backup that agnostic of the volumes it is backing up'
For which I have no answers.
B) 'An alternative filesystem / volume solution that can support
incremental backup'
ZFS snapshots fit the bill here. Most folks will jump to the conclusion
that you have to stream from one ZFS to another. But in reality zfs send
is just standard out, that is only connected to a zfs receive by
convention. You can just dump the incremental stream as a file/object
that doesn't need to be applied to a receiving ZFS immediately. You are
then into the same know problem set of full vs incremental offline
database backups.
--
Scott Sullivan
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