访问 SAN 设备失败，带有错误信息 'Add.Sense:Logical unit not supported'

Issue

• 无法访问 SAN 设备。访问 SAN 设备时，会在 /var/log/messages 文件中记录以下错误：

  Jun  5 11:33:41 host1 kernel: sd 2:0:0:17: [sdbs] CDB: Read(10): 28 00 00 00 00 80 00 00 08 00
  Jun  5 11:33:41 host1 kernel: sd 2:0:0:17: [sdbs] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
  Jun  5 11:33:41 host1 kernel: sd 2:0:0:17: [sdbs] Sense Key : Illegal Request [current] 
  Jun  5 11:33:41 host1 kernel: sd 2:0:0:17: [sdbs] Add. Sense: Logical unit not supported
  Jun  5 11:33:41 host1 kernel: sd 2:0:0:17: [sdbs] CDB: Read(10): 28 00 00 00 00 80 00 00 08 00
  Jun  5 11:33:41 host1 kernel: end_request: I/O error, dev sdbs, sector 16
  Jun  5 11:33:41 host1 kernel: end_request: I/O error, dev sdbs, sector 0
  [...]