On AIX the disk adapter are wrong?
nmon just outputs what it gets from the libperfstat library. For multipath I/O it is often the disk to adapter mapping reflects the order of disk discovery rather than some balanced view. This is an AIX problem and not nmon’s fault. To list what nmon is extracting from the libperfstat library you can use the sample code and precompiled for AIX 5.3 binaries from the Roll Your Own Wiki page at ryo – and the adapt sample program. If you don’t like the way libperfstat reports the adapter stats raise a PMR and refer to the adapt sample – as you will get no where reporting nmon errors.
