Scott Long wrote:
An alternate SoC project that would be very useful is block-level snapshots. I'm not sure if I'll be able to retain the filesystem snapshot functionality in UFS with journalling enabled, so moving to doing the snapshots in the block layer would be a good way to make up for this. Beware that while the GEOM transform would be pretty
One addenum that was introduced after I made the post to hackers@, but before sending a proposal to Google (PHK's idea, actually) is to implement a delayed-commit mode, in which journaled data will not be commited until requested.
This would allow something like block-level snapshots, but one-shot only (or at least one per journal).
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