RMAN-12017
        could not locate pieces of backup set key string
        
        
        Cause
        Copies of the specified backup set key could not be accessed on any of the allocated channels.
        Action
        Allocate additional channels on other nodes of the cluster or, if the backup pieces has been deleted, use the CROSSCHECK BACKUP command to correct the recovery catalog or target database control file entries.
        
     
    
    
        RMAN-12017
        could not locate pieces of backup set key string
        
        
        Cause
        Copies of the specified backup set key could not be accessed on any of the allocated channels.
        Action
        Allocate additional channels on other nodes of the cluster or, if the backup pieces has been deleted, use the CROSSCHECK BACKUP command to correct the recovery catalog or target database control file entries.
        
     
    
    
        RMAN-12017
        could not locate pieces of backup set key string
        
        
        Cause
        Copies of the specified backup set key could not be accessed on any of the allocated channels.
        Action
        Allocate additional channels on other nodes of the cluster or, if the backup pieces has been deleted, use the CROSSCHECK BACKUP command to correct the recovery catalog or target database control file entries.