While reading about NILFS here:

http://www.linux-mag.com/cache/7345/1.html


I saw this:

*One of the most noticeable features of NILFS is that it can "continuously
> and automatically save instantaneous states of the file system without
> interrupting service". NILFS refers to these as checkpoints. In contrast,
> other file systems such as ZFS, can provide snapshots but they have to suspend
> operation to perform the snapshot operation. NILFS doesn’t have to do
> this. The snapshots (checkpoints) are part of the file system design itself.
> *
>

I don't think that's correct. Can someone clarify?
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