Mar 4 16:50:14 diego kernel: [17262401.292000] ata4: status=0x51 { DriveReady SeekComplete Error } Mar 4 16:50:14 diego kernel: [17262401.292000] ata4: error=0x40 { UncorrectableError } Mar 4 16:50:14 diego kernel: [17262401.292000] sd 3:0:0:0: SCSI error: return code = 0x8000002 Mar 4 16:50:14 diego kernel: [17262401.292000] sdb: Current: sense key: Medium Error Mar 4 16:50:14 diego kernel: [17262401.292000] Additional sense: Unrecovered read error - auto reallocate failed Mar 4 16:50:14 diego kernel: [17262401.292000] end_request: I/O error, dev sdb, sector 532318253