BackupPC-users

[BackupPC-users] Full vs. Incremental (was: Backup through slow line?)

2008-09-04 03:05:48
Subject: [BackupPC-users] Full vs. Incremental (was: Backup through slow line?)
From: Christian Völker <chrischan AT knebb DOT de>
To: backuppc-users AT lists.sourceforge DOT net
Date: Thu, 04 Sep 2008 09:05:37 +0200
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Yohoo!

|> I keep repeating this, so you might all be bored, but still:
No, definetly not bored. For this it looks like it's too complicated :-\

|> When you factor pooling into the equasion, this means that the difference
|> between rsync full and incremental backups is smaller than for tar/smb
|> backups, which is yet far smaller than for tape backups for instance.
Or, the
|> other way around, for tape backups the difference is obvious, for
tar/smb you
|> can still see it clearly, while for rsync backups you have to look
through a
|> microscope. But it's still the same difference, and it's still there.
| I like that explanation! :-) IMHO it should go to the Wiki.

I would prefer to have a more detailled explanation for this. As I want
to understand what's going on it's not helpfull to compare things
instead of giving examples.

So WHAT it the difference between an rsync full and incremental backup?
What CAN be the microscopic differences?
Let's say I have a running Linux server which I back up through rsync
with default settings and I already have one successful full backup.

There are now two parts to look at:
1. The backup process itself
2. The stored backup

So what are the differences now between a full and incremental one?

Greetings

Christian
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