Requirements for formatting array LUNs

You can perform different types of array LUN formatting. Each type has an impact on the availability of LUNs or the entire storage array.

If you must present a new LUN to the ONTAP system immediately, you should use quick formatting. If you plan to present LUNs to the ONTAP system in the future, quick formatting is recommended but Online formatting is acceptable.

Quick formatting is recommended because both Online and Offline formatting delay disk discovery until after the LUN formatting is complete, as described in the following list: