znapzend | zfs backup with remote capabilities and mbuffer integration

znapzend is a Perl library. znapzend has no bugs, it has no vulnerabilities and it has low support. However znapzend has a Non-SPDX License. You can download it from GitHub.

[Docker images] ZnapZend is a ZFS centric backup tool to create snapshots and send them to backup locations. It relies on the ZFS tools snapshot, send and receive to do its work. It has the built-in ability to manage both local snapshots as well as remote copies by thinning them out as time progresses. The ZnapZend configuration is stored as properties in the ZFS filesystem itself. Note that while recursive configurations are well supported to set up backup and retention policies for a whole dataset subtree under the dataset to which you have applied explicit configuration, at this time pruning of such trees ("I want every dataset under var except var/tmp") is not supported. You probably do not want to enable ZnapZend against the root datasets of your pools due to that, but would have to be more fine-grained in your setup. This is consistent with (and due to) usage of recursive ZFS snapshots, where the command is targeted at one dataset and impacts it and all its children, allowing to get a consistent point-in-time set of snapshots across multiple datasets.