Step 1 Wait until the background formatting of the LUN is complete.
Log in to the ISM and unfold the storage device. Choose Storage Resources > LUNs. In the right function pane, view the property of the faulty LUN. If the Running Status is Online, the formatting is complete.
Step 2 Set the write policy of the LUN to write back.
In the right function pane, select the LUN that you want to modify and click Modify. In the Modify LUN dialog box that is displayed, set the write policy.