[BBLISA] dump or Legato Networker?

[Daniel Hagerty]

Dean Anderson <dean at av8.com> writes:

> Instead, its difficult (or impossible) to get it perfectly right on an
> active filesystem without somehow quiesing the filesystem and of course
> the applications using the filesystem. An unmount requires all open
> files to be closed, first; And no files can be opened once unmounted.  

    Ted Tso's post on LKML a few days ago was vaguely about this.  As
far as the filesystem metadata is concerned (as opposed to file
contents for a live database, that's your problem) if you take a
non-quiescent snapshot of ext?fs, and it fscks without complaint, you
got a good snapshot.  People are apparently using this technique to
safely skip the forced periodic fsck on journeled ext?fs.