| From: | Emiel Kollof <coolvibe@xxxxxxxxxxxxxxxx> |
| Date: | Wed, 21 Sep 2005 15:09:58 +0200 |
On Wednesday 21 September 2005 12:17, Gabriel Ambuehl wrote: > Oliver Fromme wrote: > >The result would be that the backup filesystem represented > >the state of the original filesystem as of one hour earlier. > >It would be a "moving snapshot", so to speak, which could > >be useful for file recovery (accidental rm) and debugging. > > > >Would that work, or am I dreaming? > > As far as I understand, that would work easily. However, it might not > even be needed once UNDO is working (that's right, there's plan for TWO > way journalling ;) I believe Solaris has (or had) something like this. I used to work at SARA, where everyone had a .snapshot dir in their $HOME which was a symlink to their homedir somewhere on a mounted snapshot of the /home filesystem. I believe it worked with some cronjobs that utilized fssnap that updated it every once in a while. But I guess that's not the same :) I believe something similar can be built using FreeBSD 5 and up with the UFS2 snapshotting. Don't know what Matt thinks of implementing snapshot support though. But this could indeed replace that. Maybe a read-only "view" of the filesystem mounted or represented somewhere that has the state of the filesystem of a configurable time back. Cheers, Emiel -- It's the thought, if any, that counts!
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