If asynchronous I/O is not enabled on IBM AIX when you attempt to start the Cluster Edition, the dataserver binary issues this error message and the Cluster Edition does not start:
exec(): 0509-036 Cannot load program dataserver because of the following errors: 0509-130 Symbol resolution failed for /usr/ccs/lib/libc.a[aio_64.o] because: 0509-136 Symbol kaio_rdwr64 (number 1) is not exported from dependent module /unix. 0509-136 Symbol listio64 (number 2) is not exported from dependent module /unix. 0509-136 Symbol acancel64 (number 3) is not exported from dependent module /unix. 0509-136 Symbol iosuspend64 (number 4) is not exported from dependent module /unix. 0509-136 Symbol aio_nwait (number 5) is not exported from dependent module /unix. 0509-136 Symbol aio_nwait64 (number 6) is not exported from dependent module /unix. 0509-136 Symbol aio_nwait_timeout (number 7) is not exported from dependent module /unix. 0509-136 Symbol aio_nwait_timeout64 (number 8) is not exported from dependent module /unix. 0509-026 System error: Error 0 0509-192 Examine .loader section symbols with the 'dump -Tv' command.
See your IBM AIX operating system documentation for information about enabling asynchronous I/O.
