Store It Right: Free Sample (Snapshots and Replication)
A free sample of Store It Right: ZFS Pools, TrueNAS, SMB and NFS Shares, Snapshots, Scrubs and Disk Health for a Homelab NAS That Keeps Working.
Inside: the cover and full table of contents, and all of Chapter 4, "Snapshots and Replication": copy-on-write explained, snapshots by hand, getting files back and rolling back safely, a sanoid retention policy, incremental, raw and resumable zfs send/receive, syncoid pull replication, replicating to TrueNAS and a restore test, with the diagrams and the real commands.
The full 66-page book (PDF and EPUB, 24 diagrams) is $19 at https://payhip.com/b/d2XuW