The target logical drive read-only setting permits read and write requests to be sent to the . Read requests from and write requests to the target logical drive are rejected while the VolumeCopy has a status of Pending or In Progress, or if the fails before it completes the copy.
After the VolumeCopy has completed, the target logical drive automatically becomes read-only to the hosts. Keep the target logical drive read-only setting enabled when you want to keep the data on the target logical drive. For example, keep the target logical drive read-only setting enabled during the subsequent circumstances:
If you decide not to keep the data on the target logical drive after the VolumeCopy is completed, use the Manage VolumeCopies option to stop the target write protection setting for the target logical drive.