I have a question about different datastore types. I have some SSD disks in one of my hosts. I created a datastore (image) with path to mounted SSD raid. Then I created a DATABLOCK in this datastore. Everything fine I can see it created in this path. Now when I attach this to running VM it works fine but I see it copies the entire file inside my system datastore. Also I check the read/write IOPS which also falls on system datastore not the SSDs.
Question1: is this behavior normal that always copies of the images will store and run from system datastore or I missed configure something in my disk/format type?
Question2: If this is a normal behavior, what are the best practices to take advantage of faster disks and different datastore types by simply creating persistence DATABLOCK images and attaching them to specific VMs. I need these on some of my VMs running database.