ZFS در FreeBSD: pool آینه‌ای، dataset، snapshot و انتقال به سرور دیگر

sysrc zfs_enable=YES
service zfs start
geom disk list | grep -E 'Geom name|Mediasize|descr'

gpart create -s gpt da1 && gpart add -t freebsd-zfs -a 1m -l data0 da1
gpart create -s gpt da2 && gpart add -t freebsd-zfs -a 1m -l data1 da2
zpool create -o ashift=12 -O compression=lz4 -O atime=off tank mirror gpt/data0 gpt/data1
zpool status tank

zfs create tank/www
zfs create -o quota=50G tank/backup
zfs create -o recordsize=16k tank/pgdata      # small records suit databases
zfs list -o name,used,avail,quota,compressratio,mountpoint

zfs snapshot tank/www@$(date +%F)
zfs list -t snapshot
ls /tank/www/.zfs/snapshot/

zfs rollback tank/www@2026-11-08

15 2 * * * /sbin/zfs snapshot tank/www@auto-$(date +\%F) && /sbin/zfs list -H -t snapshot -o name -S creation tank/www | grep '@auto-' | tail -n +15 | xargs -n1 /sbin/zfs destroy

zfs snapshot tank/www@send1
zfs send tank/www@send1 | ssh backup01 zfs receive -u backup/www

# Later, only the changes:
zfs snapshot tank/www@send2
zfs send -i @send1 tank/www@send2 | ssh backup01 zfs receive -u backup/www

sysrc -f /etc/periodic.conf daily_scrub_zfs_enable=YES
zpool status -x