Both the PCI bus utilization (per minute) and processor utilization (per hour) for the OSA adapter indicate a high percentage of use. The probable cause of the OSA adapter under performing is high adapter utilization rates. Confirm that the PathMTUDiscovery option is enabled and that network devices along routing paths are capable of exploiting a larger MTU size. Then increase the MTU Size parameter in the TCP/IP Profile, and add an additional OSA adapter.
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