I have been reading about LVM Snapshots, and I have a general understanding of how it works. If a snapshot is made of source data, I understand that the copy-on-write (COW) means that if a modification is made to existing source volume data, then the "old" data from the source volume is copied to the snapshot volume before the source data is modified.
My question is specifically about what happens to the snapshot volume when "new" data is written to the source volume (ie. not modifying data that is in the source volume already). Is this new data copied to the snapshot volume?