RMAN > could not access datafile Error

This error is occur when RMAN is not able to access the desired datafile. RMAN>  backup database skip inaccessible; Starting backup at 10-AUG-17 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=7 device type=DISK could not access datafile 10 skipping inaccessible file 10 Solutions : RMAN> restore datafile 10; […]