iblocksync 1.0

Sync block devices over the network by creating incremental images.

Getting started

You have to have an initial copy of the source device on your destination host. The size of the source device (or file) max not change.

• Copy iblocksync_remote.py to the home directory on the remote host(s) and make it executable

• Make sure that your remote user is either root or can sudo (use -s for sudo)

• Make sure that your local user can ssh to the remote host(s) (use -i for a SSH key)

• Invoke: python iblocksync.py [options] [user@]source-host /dev/source [user@]destination-host [/dev/destination]

• For local usage use 'localhost' as hosts : python iblocksync.py localhost /dev/source localhost /dev/destination

Usage

iblocksync.py [options] [user@]source-host /dev/source [user@]destination-host /dev/destination

Options:
  -h, --help            show this help message and exit
  -b BLOCKSIZE, --blocksize=BLOCKSIZE
                        block size (bytes, defaults to 1MiB)
  -c COMMENT, --comment=COMMENT
                        add an extra comment
  -i KEYFILE, --id=KEYFILE
                        ssh public key file for both hosts
  --id-source=KEYFILESRC
                        ssh public key file for source host
  --id-destination=KEYFILEDST
                        ssh public key file for destination host
  -p PAUSE, --pause=PAUSE
                        pause between processing blocks, reduces system load
                        (ms, defaults to 0)
  -s, --sudo            use sudo on both hosts (defaults to off)
  --sudo-source         use sudo on the source host (defaults to off)
  --sudo-destination    use sudo on the destination host (defaults to off)

Merge incremental backups and restore a snapshot

Usage: iblocksync_restore.py [options] IIMG /dev/destination

Options:
  -h, --help   show this help message and exit
  -f, --force  if destination exists, overwrite without asking.
Restore incremental file image

Licence

Based on blocksync.py https://gist.github.com/ramcq/0dc76d494598eb09740f

• Copyright blocksync.py 2006-2008 Justin Azoff justin@bouncybouncy.net
• Copyright blocksync.py 2011 Robert Coup robert@coup.net.nz
• Copyright blocksync.py 2012 Holger Ernst info@ernstdatenmedien.de
• Copyright blocksync.py 2014 Robert McQueen robert.mcqueen@collabora.co.uk

Copyright iblocksync.py 2016 Marek Jacob

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3 of the License only.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.