Setting the Target Logical Drive Read-Only Attribute
Read and write requests to the do not take place while the has a status of Pending or In Progress, or if the VolumeCopy fails prior to completing.
After the VolumeCopy has completed, the target logical drive automatically becomes read-only to the . You might want to keep this attribute enabled to preserve the data on the target logical drive, such as in these circumstances:
You are using the target logical drive for backup purposes
You are copying data from one to a larger array for greater accessibility
You are using the data on the target logical drive to copy back to the of a disabled or failed
If you decide not to preserve the data on the target logical drive after the VolumeCopy is completed, use the to disable the Read-Only attribute for the target logical drive.