General adapter problems, Adapter not reported under server’s pci subsystem – Dell Brocade Adapters User Manual

Page 33

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Brocade Adapters Troubleshooting Guide

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General adapter problems

This section provides possible resolutions for common problems that could occur with installed
CNAs, HBAs, or Fabric Adapters. For additional information on troubleshooting problems on
mezzanine or expansion card adapters, refer to

“Troubleshooting mezzanine card problems”

page 55.

Adapter not reported under server’s PCI subsystem

The adapter is installed but not visible as a device in the host system’s PCI subsystem.

Verify whether the adapter is visible as a PCI device by executing your host’s operating system
command to list PCI devices in the system. For details on this command, refer to the “List PCI
Devices” row in

Table 5

on page 59. If the adapter is not in the device list, refer to the following

descriptions of possible causes and recommended actions to help resolve the problem.

1. Possible Cause: Adapter slot is disabled in your system's BIOS.

Action: Examine your system BIOS settings to make sure the slot has not been disabled (Refer
to your system's Administration Guide for details on BIOS settings).

2. Possible Cause: Card not seated in host system connector properly.

Action: Reseat the adapter.

“FCoE link is down”

“FCoE and Fibre Channel
problems”

All

“I/O problem on connected FCoE device”

“FCoE and Fibre Channel
problems”

All

“I/Os are not failing over immediately on path failure in
MPIO setup”

“FCoE and Fibre Channel
problems”

Windows
Linux
VMware

“Disk I/O requests cause low throughput and high latency
on Linux”