Receive a read request for vdisk LUN ID=1, LBA=32 Perform a meta-data look up for LUN ID=1, LBA=32, and finds this maps to physical LUN ID=7, LBA0 Sends a read request to physical LUN ID=7, LBA0 Receives the data back from the physical LUN Sends the data back to the originator as if it had come from vdisk LUN ID=1, LBA32