>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 "continu= >ously >> and automatically save instantaneous states of the file system with= >out >> interrupting service". NILFS refers to these as checkpoints. In con= >trast, >> other file systems such as ZFS, can provide snapshots but they have= > to suspend >> operation to perform the snapshot operation. NILFS doesn=E2=80=99t = >have to do >> this. The snapshots (checkpoints) are part of the file system desig= >n itself. >> * >> > >I don't think that's correct. Can someone clarify?
No, and they also write this: >More over, creating these checkpoints or snapshots do not result >in decreased performance as they do for file systems such as ZFS. Both are wrong; a snapshot is cheap and doesn't suspend operations. It's pretty much like the checkpoints in NILFS. Casper _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
