Chunklet is not a secret for everyone involved with 3PAR Inform OS. In short, a chunklet is a 1GB block of data. By default a 3PAR array will devide all physical disks in multiple chunklets of 1GB.
Have you ever wanted to visualize how your chucklets, which are part of the same virtual volume, or CPG is spread across array? It’s very easy with IMC 4.6.
You need to enable Layout Grid.