Red Hat Summit24장. Using snapshots on Stratis file systems
You can use snapshots on Stratis file systems to capture file system state at arbitrary times and restore it in the future.
24.1. Characteristics of Stratis snapshots
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Stratis snapshots are regular file systems created as point-in-time copies of other Stratis file systems. They operate independently of their source file system and can be used for backup, testing, or data recovery purposes.
The current snapshot implementation in Stratis is characterized by the following:
- A snapshot of a file system is another file system.
- A snapshot and its origin are not linked in lifetime. A snapshotted file system can live longer than the file system it was created from.
- A file system does not have to be mounted to create a snapshot from it.
- Each snapshot uses around half a gigabyte of actual backing storage, which is needed for the XFS log.
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