Re: rsync behavior on copy-on-write filesystems

2014-10-29 Thread Allen Supynuk
Sent from my iPad -- 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

Re: rsync behavior on copy-on-write filesystems

2013-05-22 Thread Kevin Korb
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 You might find the lsh program in the support dir of the source tree useful. It is essentially the same as using ssh localhost but without the overhead. On 05/22/13 17:25, Allen Supynuk wrote: > Sorry for the churn and thanks for the suggestions. Whe

Re: rsync behavior on copy-on-write filesystems

2013-05-22 Thread Allen Supynuk
Sorry for the churn and thanks for the suggestions. When I redid my experiments over the network everything worked just as I dreamed it would. Changing the first 4K bytes only caused a 4K change in the copy. Changing meta-data (time stamp) only caused the time stamp to change in the copy. This is

Re: rsync behavior on copy-on-write filesystems

2013-05-22 Thread Allen Supynuk
Kevin, I will try again over a remote connection to see if that makes a difference. Not expecting -z to day much of anything based on the random data, just wanting to be consistent with the flags in the finished solution. Chris, You only get --whole-file if you specify it (or -W). Paul, For my

Re: rsync behavior on copy-on-write filesystems

2013-05-21 Thread Paul Slootman
On Tue 21 May 2013, Allen Supynuk wrote: > > ## 1) Start with an empty filesystem > > $ df -h . Note that you need to be using "btrfs filesystem df ." for reliable numbers; the normal df does not take into account background cleanups etc. Paul -- Please use reply-all for most replies to avoid

Re: rsync behavior on copy-on-write filesystems

2013-05-21 Thread Chris Dunlop
On 2013-05-21, Allen Supynuk wrote: > I have been doing some experiments with rsync on btrfs, a > copy-on-write file system that is approaching or having just achieved > production-ready status depending on your requirements. > ## 6) Use rsync --inplace to make a copy of the first file. > ##

rsync behavior on copy-on-write filesystems

2013-05-21 Thread Allen Supynuk
I have been doing some experiments with rsync on btrfs, a copy-on-write file system that is approaching or having just achieved production-ready status depending on your requirements. For my purposes the reliability appears by almost all accounts to be there, and the compression alone makes it ver