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