Published at LXer:

In previous articles I have hinted that at Phoronix we are working to take advantage of the Btrfs file-system within the Phoronix Test Suite and Phoromatic to provide an interesting feature that will further expand our automated testing capabilities, but how does this file-system come into play? Well, here is what's being worked on and it should be of terrific value to many people. One of the features of Btrfs not found in other Linux file-systems (like EXT4) is support for copy-on-write snapshots / sub-volumes. With this Btrfs snapshotting support is the ability to mount different snapshots in a very easy manner and since they are copy-on-write, the disk storage requirements are not extreme

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