Displaying 5 results from an estimated 5 matches for "btrfs_backups_2011".
2015 Apr 15
1
rsync --link-dest won't link even if existing file is out of date
...I strongly agree with the previous posts relating to file
> system snapshots. ZFS is just one file system which supports this
> kind of system.
I have also attempted to use btrfs in Linux for this. I even wrote up
a presentation for my local LUG about it:
https://sanitarium.net/golug/rsync+btrfs_backups_2011.html
Unfortunately there was nothing but grief. The btrfs just wasn't
stable enough and the btrfs-cleaner kernel thread drove performance
into the ground. We eventually had to abandon it in favor of ZFS on
TrueOS.
As far as "fast box" goes we decided on 8GB of RAM for most of the...
2013 Jan 18
1
rsync - using a --files-from list to cut out scanning. How to handle deletions? (fwd)
...imed
> by a kernel thread in the background.
We are restricted in our use of filesystems to what is chosen for
particular hosts, so smarter backups using advanced filesystems is a
long way off.
>
> Here is something I wrote up about it a while back:
> http://sanitarium.net/golug/rsync+btrfs_backups_2011.html
Thanks - good stuff. It parallels some of the work we have done - I
should have looked up your papers earlier.
Our recycling of old backup directories gets around the performance
issue of having to delete old backups - deletes can certainly take a
long time, and we do it only for old systems...
2013 Jan 15
2
rsync - using a --files-from list to cut out scanning. How to handle deletions?
Folks,
We use rsync extensively for protecting data by making backups.
Thank you to the authors and maintainers.
Like many others, we use the --link-dest option to cut down on the space
occupied by the backups.
Unlike many others, we re-cycle old backup directories. Since most file
systems change only slowly (ours average about 0.5% of files and about
1.5% of data being churned each day), a
2015 Apr 06
6
rsync --link-dest won't link even if existing file is out of date
Feature request: allow --link-dest dir to be linked to even if file exists
in target.
This statement from the man page is adhered to too strongly IMHO:
"This option works best when copying into an empty destination hierarchy, as
rsync treats existing files as definitive (so it never looks in the link-dest
dirs when a destination file already exists)".
I was suprised by this behaviour
2011 Dec 01
1
Hlink node data for 570645 already has path ...
When syncing one backup system (running dirvish, but that's not really
relevant) to a second long-term backup system which uses btrfs
snapshots, I get the following output:
rsync: link "/parasite.oob.telegraaf.net/vservers-var-www/tree/elo/var/www/lokaalx/openx-htdocs/etc/xmlcache/.svn/prop-base/cache_etc-changes_schema-tables-core-12934.bin.svn-base" (in backup-aquagirl) =>