zfs バックアップ - external storage 1

https://www.fujitsu.com/jp/documents/products/computing/servers/unix/sparc/technical/document/solaris11_zfs_backup_gde00.pdf

https://serverfault.com/questions/654494/zfs-backup-advice-with-another-server

zfs send -R オプション

A recursive snapshot called monday is made of the file system dataset home that resides on the pool mypool. Then it is sent with zfs send -R to include the dataset, all child datasets, snapshots, clones, and settings in the stream.
https://www.freebsd.org/doc/handbook/zfs-zfs.html

zfs rollback

zfs rollbackの-rはrecursiveではない

 zfs rollback [-rRf] snapshot
         -r      Destroy any snapshots and bookmarks more recent than the one
                 specified.
         -R      Destroy any more recent snapshots and bookmarks, as well as
                 any clones of those snapshots.
         -f      Used with the -R option to force an unmount of any clone file
                 systems that are to be destroyed.

zfsnap2

zfstools

Sanoid Syncoid

ZFS WARNING: Unable to create ZVOL ... (error=63)

zfs rollback