The rsync command runs whenever you tell it to run. It is not something that is always sitting in the background trying to sync. Whenever you run it, it will scan through the directory of files you point it to and determine what changed. Rsync is actually optimized for doing these comparisons over high latency, low-bandwidth network connections. It is fairly efficient at doing it. If you're backing up files you're probably only performing a sync from one to several times a day so there isn't much bandwidth burned up.
Rob On Mon, 13 Jun 2011 15:24 +0700, "Jeffrey Race" <[email protected]> wrote: > Does this mean that rsync is constantly comparing > checksums on the hypothetical 10,000 files I've > stored in the cloud? Sounds like a lot of bandwidth. > Or does it list locally the cloud-stored files and > check only when there is a change locally? > > tks for your help. may be more questions soon > jr > > --Original Message Text--- > From: Alex Austin > Date: Sun, 12 Jun 2011 18:43:26 -0500 > > rsync sends checksums of files back and forth. When one doesn't match, it > uses a rolling checksum > algorithm to determine what parts of the file have changed, and send only > the changes. > - Alex -- http://www.fastmail.fm - Access all of your messages and folders wherever you are _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
