The onstat -g ioq command

Use the onstat -g ioq option to determine whether you must allocate additional virtual processors. The command onstat -g ioq displays the length and other statistics about I/O queues.

If the length of the I/O queue is growing, I/O requests are accumulating faster than the AIO virtual processors can process them. If the length of the I/O queue continues to show that I/O requests are accumulating, consider adding AIO virtual processors.

For an example of onstat -g ioq output, see information in the HCL Informix® Administrator's Reference.


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