Emulex Fiber Channel or FCOE HBA maximum port count 8-12 from system BIOS - IBM Emulex Fiber Channel Host Bus Adapter

Troubleshooting

Problem

Unified Extensible Firmware Interface (UEFI) may display only a maximum port count of 8 or 12 when multiple Emulex Fibre Channel or multiple Emulex Fibre Channel over Ethernet (FCoE) Host Bus Adapters (HBAs) are installed.

Resolving The Problem

Source

RETAIN tip: H206588

Symptom

Affected configurations

The system is configured with one or more of the following IBM Options:

Emulex 16 GB Fiber Channel Dual-Port Host Bus Adapter, Option part number 81Y1662, any replacement part number (CRU)
Emulex 16 GB Fiber Channel Single-Port Host Bus Adapter, Option part number 81Y1655, any replacement part number (CRU)
Emulex 4 GB Fibre Channel Dual Port PCI-e Host Based Adapter, Option part number 42C2071, any replacement part number
Emulex 4 GB Fibre Channel HBA PCI-X Adapter Dual Port for IBM System x, Option part number 2D0407, any replacement part number
Emulex 4 GB Fibre Channel HBA PCI-X Adapter Single Port for IBM System x, Option part number 42D0405, any replacement part number
Emulex 4 GB Fibre Channel Single Port PCI-e Host Based Adapter, Option part number 42C2069, any replacement part number
Emulex 4 GB SFF Fibre Channel Expansion Card, Option part number 39Y9186, any replacement part number
Emulex 8 GB FC Dual-Port HBA for IBM System x, Option part number 42D0494, any replacement part number
Emulex 8 GB FC Single-Port HBA for IBM System x, Option part number 42D0485, any replacement part number

This tip is not system specific.

This tip is not software specific.

Additional information

The port limit is a function of the available Extended BIOS Data Area (EBDA) memory. Only ports seen from UEFI can be used to start from the Storage Area Network (SAN). All other ports will be accessible from the operating system.

Document Location

Worldwide

Operating System

System x Hardware Options:Operating system independent / None

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