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IBM i 7.6 adds Fibre Channel adapter statistics to Collection Services.
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System configurations may include external storage devices attached through Fibre Channel networks. System administrators may sometimes find it difficult to isolate performance issues, particularly when using virtual Fibre Channel adapters that share Fibre Channel adapter hardware in configurations with the Virtual I/O Server (VIOS).
With IBM i 7.6, use of the new Fibre Channel adapter statistics in Collection Services can make it easier to analyze performance bottlenecks on Fibre Channel attached devices.
Statistics are available for both Fibre Channel adapters in PCI slots assigned directly to the IBM i partition (native adapters) as well as virtual Fibre Channel adapters that use N-Port ID Virtualization (NPIV) to share Fibre Channel adapters assigned to VIOS partitions:
• Dedicated (i.e., Native) Fibre Channel adapters provide link statistics to help identify issues that may relate to Fibre Channel link transmission errors that can cause degraded performance.
• Virtual adapters in VIOS configurations provide IBM i adapter driver and I/O performance statistics to help identify issues that may relate to virtualization overhead or overcommitment.
More information:
– IBM Documentation for native Fibre Channel: Collection Services data files: QAPMFCN
– IBM Documentation for virtual Fibre Channel: Collection Services data files: QAPMFCV
– IBM Documentation for virtual Fibre Channel: Collection Services data files: QAPMFCV
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Modified date:
04 April 2025
UID
ibm17230057