Linux equivalent for Windows shadow copies

In Linux is there an equivalent for Windows shadow copies? I would like to use this for a small setup nothing big but it would be nice to have some type of functionality like shadow copies.

Solution 1:

LVM snapshot(1,2) not full equivalent, but work fine. Also btrfs support snapshot.

Solution 2:

You could look at R1Soft's free Hot Copy or commercial CDP solutions. The Hot Copy is a kernel module that allows you to take copy-on-write volume snapshots of mounted filesystems.

See their tips page: http://www.r1soft.com/tools/linux-hot-copy/hcp-tips/#c852

Solution 3:

You could set up a mirror using LVM or md then break the mirror to get the snapshot, or use an overlay filesystem

Solution 4:

Another possibility could be to use rsnapshot. But LVM snapshot is probably the better solution if you have a large amount of data.