An administrator wants to apply Disk Shares to ensure proper storage performance.These shares are configured on which object?
Page 28 on vsphere-esxi-vcenter-server-50-storage-guide.pdf
Use Disk Shares to Prioritize Virtual Machines
If multiple virtual machines access the same VMFS datastore (and therefore the same LUN), use disk shares to prioritize the disk accesses from the virtual machines. Disk shares distinguish high-priority from low-priority virtual machines.