I have a question on the concept of volume and snapshot.
For the question from the study material,
"Suppose a 200 GB file is written to the cluster. After compression, its size in the cluster is 180
GB. A snapshot that includes that file is taken. Later, 100 GB of data in that file changes – so,
both the original data and the changed data must be kept as long as the snapshot is there.
How much of the volume's quota is consumed for storing this file?"
Why the answer is 180 GB?