Summary:
When enabling AIO buffer using the default provider configuration with

 useVddkAioOptimization: 'true'

 an incorrect prefix is used for one of the AIO buffer values. The default configuration sets:

VixDiskLib.nfcAio.Session.BufSizeIn64K=16
VixDiskLib.nfcAio.Session.BufCount=4

However, the correct setting should be:
VixDiskLib.nfcAio.Session.BufSizeIn64KB=16
VixDiskLib.nfcAio.Session.BufCount=4
 
the fix is to change : 

VixDiskLib.nfcAio.Session.BufSizeIn64K=16   to VixDiskLib.nfcAio.Session.BufSizeIn64KB=16
 
Expected Behavior:
The correct value (VixDiskLib.nfcAio.Session.BufSizeIn64KB=16)
should be set automatically when enabling AIO buffer.

Actual Behavior:
The incorrect value (VixDiskLib.nfcAio.Session.BufSizeIn64K=16)
is set by default, which does not apply correctly.

Impact & Performance Difference:

• Cold migration without AIO buffer:
  • Duration: 0:20:38 min
  • Read rate: 413.57 MB/s
• Cold migration with manually corrected AIO buffer (16/4):
  • Duration: 0:14:57 min
  • Read rate: 570.79 MB/s
• Versions:  
  • CNV: 4.18.0 , OCP: 4.18.2 MTV: 2.8.0,IIB: 931480, ODF: 4.17.5