Backup Central

Hi there!

I want to store my backups on remote machine, with sshfs and dmcrypt
(sshfs, losetup, cryptsetup luksOpen, mount etc.) but I need reduce
traffic, if I will just run rdiff on mounted dmcrypted-volume under
sshfs, to check if files was changed and generate diff ti must read
whole file, read == download but it will kill me, I think about two
stage backup, backup files to local rdiff-backup dir and then sync
local rdiff-backup dir with remote server but how? If I will use for
example rsync it still need to check whole files for changes (read,
download it) and upload only new. I hope you will understand what I
need and help me.


--
Pozdrawiam.
Piotr Karbowski.


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On Mon, Sep 21, 2009 at 2:02 PM, Matthew Miller <mattdm < at > mattdm.org> wrote:
On Mon, Sep 21, 2009 at 01:58:11PM +0200, Piotr Karbowski wrote:
local rdiff-backup dir with remote server but how? If I will use for
example rsync it still need to check whole files for changes (read,
download it) and upload only new. I hope you will understand what I
need and help me.

rsync won't check whole files unless you give the -c flag. Otherwise, it
just compares metadata. I don't know if that's also the case with
rdiff-backup, but I assume so.So

So I need to know how rdiff default compares data, if by size and
mod-time, it will not be so painful but still it will download changed
files to generate diff.


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Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki