Is it safe to use
rsync when the source filesystem is mounted and writeable, assuming that it may very well be modified while rsync is running? I presume that under race conditions I may not get the latest modifications, but is there any risk of corruption?
This means when a file changes after
File system or volume manager snapshots (e.g. using ZFS or LVM), on the other hand, are created instantly and are a consistent snapshot of the file system at a well defined point in time which can then be copied to another host.
EDIT: As others have pointed out in the comments, there's a chance that