Serge, from what I understand of rsync, it never writes directly to the destination file, it will create a temporary hidden file and write to that, then unlink/rename when the transfer is complete.
So the steps can just be
rsync rsync://mirror/file.iso orig.iso
it won't interfere at all with anything that has the .iso opened.. it will be like any other unlinked open file.
Serge, from what I understand of rsync, it never writes directly to the destination file, it will create a temporary hidden file and write to that, then unlink/rename when the transfer is complete.
So the steps can just be
rsync rsync:/ /mirror/ file.iso orig.iso
it won't interfere at all with anything that has the .iso opened.. it will be like any other unlinked open file.