Markus <unive...@truemetal.org> wrote on 11/19/2012 04:03:03 PM:
> For fun, here's the output of find / | wc -l:
>
> 24478753
>
> real 490m35.602s
> user 0m21.013s
> sys 1m23.305s
>
> 25 million files! OMG. find took 8 hours to complete. Nice, hm? :-)
Wow. If a simple "find" took 8 hours to complete, rsync's gonna take even
longer to create the file list! :)
> I started another full backup on Friday 21:00 CET and it's still
> running, but it started to transfer files after a day or so, finally!
Good for you!
> Another box of the same customer has 2.5 files and took 29 hours for the
> first full backup. That means the 25 million box' full backup should be
> done within 12 days. :-) But if I understand correctly all future full
> backups will be faster. No idea what BackupPC will do after these 12
> days, start directly with another full backup? Well, we will see...
In one case for me, my first full backup took 9000 minutes (almost a full
week). Subsequent fulls still took over 4000 minutes, so the speedup for
future fulls was only double that of the first full. (I ended up
optimizing things a bit more and getting it down to about 3000 minutes,
which I'm currently living wth.)
> a) Different profiles with aliases
> b) Different shares
I am looking at doing the same here, just to break up the fulls so they
can run on different days. (Thanks, Les!)
> c) tar
Personally, I find that tar takes no real less time than rsync for fulls.
> Unforunately almost all of the files are located in /home in thousands
> of subdirectories, so I can't just say "backup /home or /home/1,
> /home/2, /home/3 in another profile", but if tar won't work I guess I
> will have to dig deeper into the subdirectories for profiles/shares
> splitting.
Wow. 25 *million* files saved in home directories? That kind of defeats
the purpose of shared data! I thought my users were bad about that... :)
Tim Massey
Out of the Box Solutions, Inc.
Creative IT Solutions Made Simple!
http://www.OutOfTheBoxSolutions.com
tmas...@obscorp.com
22108 Harper Ave.
St. Clair Shores, MI 48080
Office: (800)750-4OBS (4627)
Cell: (586)945-8796
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