Comments for sambodata

Comment on BTRFS/RSYNC based backups. by Sylvain Alain

Sylvain Alain — Fri, 29 Apr 2011 21:58:03 +0000

Hi, I would like to know if you have tested these options to do a full rsync backup of one installation to an another hdd :

# rsync -aHA –del –force –stats –progress /mnt/funtoo /mnt/backup

/mnt/funtoo and /mnt/backup are 2 separates partitions and they are formatted as btrfs

Also, can I use directly a btrfs snapshot to restore a backup into an another hdd ?

Example :

# rsync -aHA –del –force –stats –progress /mnt/backup/snapshot/snap-20101029/ /mnt/funtoo

Thanks

Comment on USB 3.0 by delectate

delectate — Thu, 02 Dec 2010 13:33:13 +0000

wow…that’s fast.mark this post,i love usb3.0,it really fast!

Comment on BTRFS/RSYNC based backups. by mike

mike — Tue, 21 Sep 2010 11:43:49 +0000

Hi 2of1, I never actually added the –inplace flag to the rsync command line as according to the rsync man page there are some undesirable side effects to using this switch. Most seem to relate to files being accessed during the backup. I want to look into this a little more…

Comment on BTRFS/RSYNC based backups. by 2of1

2of1 — Thu, 16 Sep 2010 14:23:03 +0000

@mike:
Could you share your new script pls?

Comment on BTRFS/RSYNC based backups. by mike

mike — Sun, 25 Jul 2010 23:14:46 +0000

Thanks mikeY. Most of my files don’t change but I also have a couple of VM disk images where this would be handy. I’ll make the required change to my backup script.

Comment on BTRFS/RSYNC based backups. by mikeY

mikeY — Sun, 25 Jul 2010 07:59:28 +0000

The way you have used rsync, doesn’t take advantage of btrfs Copy-On-Write capability because by default, if a file has changed, rsync creates a whole new file and moves it over the old one in the backup dir.
However, using –inplace flag, rsync will only write the modified parts of the file on the top of the old one. This of course requires the file to have write permissions, or that you backup using root. This is especially useful for backing up vm harddisk images which can be many gigabytes in size.
Also, as for accidental modification of backup, I mount the backup volume as readonly and only remount it readwrite while backing up.

Comment on BTRFS/RSYNC based backups. by Alan

Alan — Fri, 04 Jun 2010 06:49:14 +0000

BTRFS is coming along. I tried it for a backup system using rsync and snapshots, but quickly filled my disk. I’m waiting for deduplication and more-mature userspace tools.

Thanks for the post.

Comment on Book Database and Git by Book database status and MUAs. — sambodata

Book database status and MUAs. — sambodata — Tue, 09 Feb 2010 03:37:06 +0000

[...] felt like a little break from my book database project. It needs one more weekend of polishing before it is usable. Hopefully I will get it done [...]

Comment on Configs and status bars. by Configs and [testing]. — sambodata

Configs and [testing]. — sambodata — Tue, 15 Dec 2009 10:23:59 +0000

[...] mentioned earlier I have finally put most of my configs into a public git repo. After using it for a couple of weeks [...]

Comment on Configs and status bars. by Tomas Janousek

Tomas Janousek — Sat, 05 Dec 2009 23:14:14 +0000

The client knows by listening for property changes on the root window. BTW, my patches have been applied, so darcs xmobar + darcs xmonad now support this out of the box.