Not sure if that is the correct terminology. I have an rsync setup of files between two Windows servers using cwRsync, which uses -apv options among --progress and --delete options. One part of the backup is to transfer a MSSQL backup file and I notice that after the initial transfer taking 20 minutes or more, subsequent daily transfers after is changes each night take only a minute or two max and this is the summary...
Number of files: 1 Number of files transferred: 1 Total file size: 448610816 bytes Total transferred file size: 448610816 bytes Literal data: 3807632 bytes Matched data: 444803184 bytes File list size: 77 File list generation time: 0.001 seconds File list transfer time: 0.000 seconds Total bytes sent: 148389 Total bytes received: 3892615 Although the file size does not change very much day to day, the file is generated from MSSQL backup function every day and does change, and the destination date time stamp updates to match the source. If I wipe out the file on the destination and start again, several minutes to transfer the file. So, I assume there is some sort of 'bit synchronization' that only refreshes the file contents? This is a binary file and I did not know this was possible. I've been running rsync between unix/linux boxes for years doing backup and would love this to work with our PostgreSQL backups. I've tried the same options and choosing pg_dump format options of both 'c' and 'p' (plain text), but nothing works. It always transfers the entire file. I'm I seeing this correctly that rsync can do this? If so, what are the requirements to make it happen? Thanks for the help... -- Robert -- To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
