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by magicalhippo 2103 days ago
To expand slightly, it's used for "channel programs", scripts that can interact with ZFS to create or modify datasets and similar tasks. There's a write-up here[1] about the feature.

Main advantage is that it allows for multiple operations to be applied atomically, as well as better error handling.

[1]: https://www.delphix.com/blog/delphix-engineering/zfs-channel...