Select a disk type (512e, 512n, or 4k ) that is most optimized to the logical disks in the system and the VMs that you want to run. You cannot change this disk type after you create the storage group, and you can assign logical disks to the storage group only if they are compatible with this disk type. See Storage Requirements for more information.
To create a new storage group
On the STORAGE GROUPS page, click the Create button. The New Storage Group dialog box appears.
In the Name box, type the name of the new storage group.
For Disk Type, select the disk type for the storage group: 512e, 512n, or 4k.