March 2019
Beginner to intermediate
778 pages
34h 20m
English
Creating backups of storage devices is a very common operation. For persistent disks, this is done through snapshots. Snapshots can be created from persistent disks that are attached to running Compute Engine instances, meaning there is no need to detach the persistent disk or take the server down for maintenance.
Snapshots are created using an incremental strategy, meaning each snapshot only contains the files that have changed since the previous snapshot. This creates very small backups, allowing many backups to be preserved without a significant cost. Note that, because boot disks are themselves persistent disks, they too can have snapshots taken of them and can be restored.
We can create a snapshot for our
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