RMAN-12008
        could not locate backup piece string
        
        
        Cause
        There was at least 1 backup set that could not be accessed by any of the allocated channels.
        Action
        Allocate additional channels on other nodes of the cluster
        
     
    
    
        RMAN-12008
        could not locate backup piece string
        
        
        Cause
        There was at least 1 backup set that could not be accessed by any of the allocated channels.
        Action
        Allocate additional channels on other nodes of the cluster
        
     
    
    
        RMAN-12008
        could not locate backup piece string
        
        
        Cause
        There was at least 1 backup set that could not be accessed by any of the allocated channels.
        Action
        Allocate additional channels on other nodes of the cluster