Andrew McNaughton <[EMAIL PROTECTED]> wrote: > > >On Thu, 25 Apr 2002, James G Smith wrote: > >> What's a `very large amount of data' ? Our NIS maps are on the order >> of 3 GB per file (>64k users). Over a gigabit ethernet link, this >> still takes half a minute or so to copy to a remote system, at least >> (for NIS master->slave copies) -- this is just an example of a very >> large amount of data being sync'd over a network. I don't see how >> transferring at least 3 GB of data can be avoided (even with diffs, >> the bits being diff'd have to be present in the same CPU at the same > >rsync solves this problem with sending diffs between machines using a >rolling checksum algorithm. It runs over rsh or ssh transport, and >compresses the data in transfer.
Yes - I forgot about that - it's been a year or so since I read the rsync docs :/ but I do remember it mentioning that now. -- James Smith <[EMAIL PROTECTED]>, 979-862-3725 Texas A&M CIS Operating Systems Group, Unix
