rsync --link-dest and --files-from lead by a "change list" from some file system audit tool (Was: Re: cut-off time for rsync ?)
rsync-list-m829 at sizone.org
Tue Jul 14 13:30:12 UTC 2015
And what's performance like? I've heard lots of COW systems performance
drops through the floor when there's many snapshots.
On Tue, Jul 14, 2015 at 08:59:25AM +0200, Paul Slootman said:
>On Mon 13 Jul 2015, Andrew Gideon wrote:
>> On the other hand, I do confess that I am sometimes miffed at the waste
>> involved in a small change to a very large file. Rsync is smart about
>> moving minimal data, but it still stores an entire new copy of the file.
>> What's needed is a file system that can do what hard links do, but at the
>> file page level. I imagine that this would work using the same Copy On
>> Write logic used in managing memory pages after a fork().
>btrfs has support for this: you make a backup, then create a btrfs
>snapshot of the filesystem (or directory), then the next time you make a
>new backup with rsync, use --inplace so that just changed parts of the
>file are written to the same blocks and btrfs will take care of the
>Please use reply-all for most replies to avoid omitting the mailing list.
>To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync
>Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
Ken Chase - ken at heavycomputing.ca skype:kenchase23 +1 416 897 6284 Toronto Canada
Heavy Computing - Clued bandwidth, colocation and managed linux VPS @151 Front St. W.
More information about the rsync