LVM Snapshot

Install

• apt-get install lvm2
• reboot

Create LVM System

• pvcreate /dev/sda1
• vgcreate data /dev/sda1
• lvcreate -L 50G -n vms data

Format and mount

• mkfs.ext4 /dev/data/vms
• mkdir /mnt/vms
• mount /dev/data/vms /mnt/vms/

LVM Snapshot erstellen

• lvcreate -s -L 2G --name vms-snap /dev/data/vms
• mkdir /mnt/snapshot
• mount /dev/data/vms-snap /mnt/snapshot/
• cp /mnt/snapshot/vm.qcow2 /backup/
• umount /mnt/snapshot
• lvremove /dev/data/vms-snap

Links

• https://www.thomas-krenn.com/de/wiki/LVM_Snapshot_Merge