The attribute specifies the following:
Click the check box to override the selection that is indicated in the Attributes tab. Choose the storage unit or lifecycle from the drop-down list of previously configured storage units and lifecycle policies. If the list is empty, no storage units or lifecycles have been configured.
If a data classification is indicated for the policy, only those storage lifecycles with the same data classification appear.
To use only the policy storage selection that is indicated by the setting in the Attributes tab, do not enable the check box.