Click the Disk Groups tab. The Disk Groups page is displayed.
Click the Disk Group that contains the Thin Provisioned attribute you want to change. The Disk Group page displays.
In the Advance Attributes section, click Edit. The Edit Advanced Attributes for Disk Group page displays.
In the Thin Provisioning section, select True or False from the Thin Provisioned field drop-down list. If thin provisioning is enabled, the disk space not in use can be returned to the array. This attribute can be set only if the ASM compatibility is greater than or equal to 12.1.0.0.
For information about the THIN_PROVISIONED disk group attribute, refer to "THIN_PROVISIONED".