Gentoo Archives: gentoo-server

From: Christian Bricart <christian@×××××××.de>
To: gentoo-server@l.g.o
Subject: Re: [gentoo-server] Mirroring/backing-up a large 15Million (6TB) file collection
Date: Thu, 20 Apr 2006 00:15:57
Message-Id: 4446D265.8070202@bricart.de
In Reply to: [gentoo-server] Mirroring/backing-up a large 15Million (6TB) file collection by jos houtman
1 jos houtman schrieb:
2 [..snip..]
3 > Do you have any idea's/hints? maybe options i have not seen, even when
4 > they sound silly. They might trigger a fresh idea :D
5
6 reading through all the other answers has been quite interesting.
7 Though, as you mentioned silly ideas ;-) here's mine:
8
9 Apart from if it's stable enough to use in a production environment but
10 just as such an idea you wanted:
11
12 What about setting up something with overlayfs, unionfs or any other
13 translucent filesystem? The scenario would be like:
14
15 - About to start backup now.
16 - add an overlay mount for data directory
17 * every change/add from now on will be written on a separate directory
18 / partition / whatever but transparently visible while accessing the
19 "real" data directory
20 - back up the overlay partition from latest backup run
21 - merge this overlay into "real storage path" and destroy the mount
22 - keep the current overlay active till next backup and repeat this procedure
23
24 Christian
25
26 --
27 gentoo-server@g.o mailing list