zpool import 
 pool: mybackups 
    id: 18344450410782017931 
 state: UNAVAIL 
status: The pool was last accessed by another system. 
action: The pool cannot be imported due to damaged devices or data. 
  
 mybackups         UNAVAIL  newer version 
  raidz1          DEGRADED 
  ad14p1        ONLINE 
  ad16p1        ONLINE 
  dsk/c4t5d0s0  UNAVAIL  cannot open