lkml.org 
[lkml]   [1998]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: linux-kernel-digest V1 #1687
> Another important use, and perhaps a less limited one, is for rolling
> backups: by cloning (as it is usually called) the entire FS, you can then
> back it up without bringing the system down to single-user mode

As I understand it, this is the primary use for clones. The system generates clones every hour or so (and probably at other intervals), so if you
accidentally delete a file, you can get it back from a recent clone.

Similarly, backups would be done from a clone rather than the active file system so files aren't changing out from under the backup utility.

> and still
> be guaranteed that the entire FS has a consistent set of files.

Not really. There is no way to guarantee that without application support. All you can guarantee is that the image won't change during the backup,
but this doesn't ensure that the clone is itself consistent.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu

\
 
 \ /
  Last update: 2005-03-22 13:41    [W:0.024 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site