Home > Storage > PowerMax and VMAX > Storage Admin > Dell PowerMax and VMware vSphere Configuration Guide > vSphere Storage I/O Control
The screen to edit shares and IOPS can be accessed from several places within the vSphere Client. Perhaps the easiest is to select the VMs tab of the datastore on which Storage I/O Control has been enabled. In Figure 120 there are two VMs listed for the datastore STORAGE_I/O: STAR_VM and STORAGE_I/O_VM. Set the appropriate SIOC policy by changing the settings of the VM. Right-click the chosen VM, and then select Edit Settings.
Within the VM Properties screen shown in Figure 121, expand each hard disk to see both the Shares and the IOPs limit. Notice that for each hard disk the default of Normal for Shares and Unlimited for IOPS is present.
Using the drop-down boxes within the Shares and IOPS columns, you can change the values. Figure 122 shows that the Shares can be adjusted to Low (500), Normal (1000), or High (2000) and any custom value. Limit - IOPs are either unlimited or any custom value between the minimum and maximum.