Snapshot /2

Facciamo lo snapshot di un file system XFS su LVM

Dai file ai blocchi del disco

root@linuxday2022:~# touch /mnt/file-pre-snapshot

root@linuxday2022:~# ls -l /mnt

root@linuxday2022:~# lvcreate --snapshot --name lv1backup --size 1G /dev/vg/lv1

root@linuxday2022:~# mkdir /mnt3

root@linuxday2022:~# mount -o nouuid,ro /dev/vg/lv1backup /mnt3

root@linuxday2022:~# ls -l /mnt/* /mnt3/*

root@linuxday2022:~# lvs

root@linuxday2022:~# cp /bin/bash /mnt/

root@linuxday2022:~# ls -l /mnt/* /mnt3/*

root@linuxday2022:~# df

root@linuxday2022:~# umount /mnt3

root@linuxday2022:~# lvremove /dev/vg/lv1backup

Provare per credere!