AFD-0654: AFD is not supported on Exadata systems

The following messages appear in CRS alert.log of ExaCC or Exadata:

2021-10-24 05:10:52.584 [CLSECHO(189590)]AFD-0654: AFD is not supported on Exadata systems
2021-10-24 11:10:53.734 [CLSECHO(288932)]AFD-0654: AFD is not supported on Exadata systems
2021-10-24 17:10:56.450 [CLSECHO(398661)]AFD-0654: AFD is not supported on Exadata systems
2021-10-24 23:10:55.077 [CLSECHO(92820)]AFD-0654: AFD is not supported on Exadata systems
2021-10-25 05:10:54.274 [CLSECHO(195018)]AFD-0654: AFD is not supported on Exadata systems
2021-10-25 11:10:53.935 [CLSECHO(268638)]AFD-0654: AFD is not supported on Exadata systems
2021-10-25 17:10:52.051 [CLSECHO(361889)]AFD-0654: AFD is not supported on Exadata systems
2021-10-25 23:10:52.858 [CLSECHO(37352)]AFD-0654: AFD is not supported on Exadata systems
2021-10-26 05:10:56.178 [CLSECHO(135982)]AFD-0654: AFD is not supported on Exadata systems

AFD protects from unauthorized processes over write to the asm claimed disks
in raw disk environment which is not applicable to exadata disks (non-oracle processes could not recognize / write to exadata disks).

so the message “FD-0654: AFD is not supported on Exadata systems” in alert.log can be ignored.