How can we verify that asynchronous I/O is being used?

Solution Unverified - Updated -

Issue

  • Enabled oracle parameter filesystemio_option="SetAll" to enable use of asynchronous I/O.
  • What additional kernel/filesystem parameter or option is required for support of AIO?
  • How can we verify that asynchronous I/O is actually being used?

Environment

  • Red Hat Enterprise Linux 5

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