I was just wondering if some of you may be able to clarify something when it comes to file based storage (qcow2/RAW).
I've noticed that when you use a RAW storage file on thick LVM, it creates a file that's quite small but has a maximum size of what you specify. As you add files, the raw file continues to grow. When you then delete those files off the VM using the RAW storage, it remains the same size but the actual data inside the VM is reduced as expected.
What happens when the RAW file eventually hits max size? For example it was 2TB but inside the actual VM it's only using 50GB. Would it continue to work as expected?
Summoning resident file based storage advocate @AnthonySmith