IO advice hints grouping mode page:
  IOA_MODE      1
  CS_EN         0
  IC_EN         1
  ACDLU         1
  RLBSR         2
  LBM_DT        5
  OV_FR         0
  RW_FR         1
  WR_SE         3
  RD_SE         2
  IO_CL         3
  SU_IO         0
  OSI_PR        3