Maciej Żenczykowski wrote:
And the last question: is there some sort of filesystem which supports generating 'in-filesystem' snapshots (ie. some sort of copy-on-write block semantics applicable both to files and directories combined with both a root rw directory to access current files and a ro /snapshot/YYMMDD-HHMMSS hierarchy to access snapshots from past dates with the possibility of deleting them at will (ie. generate a snapshot every hour, after 24 hours leave only every 6th one, after 7 days leave only dailies, after a month leave only weeklies etc... - much too complicated, but it's easier to get the basic idea across on a larger example - probably organized via cronjob).
WAFL does this, unfortunatly it only runs on NetApps.
-jim