Brocade Communications Systems BR-1020 Anleitung zur Fehlerbehebung PDF herunterladen (Seite 19)

Brocade Adapters Troubleshooting Guide 1

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Chapter

Introduction to troubleshooting

In this chapter

•How to use this manual for troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 1

•Gathering problem information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

How to use this manual for troubleshooting

An adapter, such as an HBA or CNA, is one component of a larger network consisting of switches,

storage devices, host systems and the cabling and connections to these components. Although

there may be a problem in the adapter or an adapter component, the problem could also originate

in another network component or connections between these components. Before removing and

replacing adapters, launching adapter diagnostics, or even gathering statistics on adapter

operation, it is important that you perform the following tasks:

1. Fully describe the problem and gather complete information about the symptoms that suggest

a problem exists. Refer to “Gathering problem information” on page 2.

2. Isolate or resolve the problem by first using information in Chapter 2, “Isolating Problems”.

Adapter problems are organized under the following categories:

• “General HBA and CNA problems”

• “HBA problems”

• “Ethernet network interface problems (CNA only)”

• “FCoE and Fibre Channel problems”

• “CEE network problems (CNA only)”

Search through the list of problems in Table 2 on page 5. Problems are organized in the table

by problem title, category, and whether the problem is operating-system-specific. Click on a

problem to go to the chapter section containing details of possible causes and actions for

resolution.

Each problem section in Chapter 2 provides a complete description of the problem, possible

causes, and actions for resolution. Fixes and actions may reference BCU commands, HCM

features, and host operating system commands described in Chapter 3, “Tools for Collecting

Data” which you can use to further isolate or resolve the problem.

Other helpful sections in Chapter 2 include the following:

• “Adapter driver installation verification” on page 34.

• “Verifying Fibre Channel and CEE links” on page 32.

• “Additional references for isolating problems” on page 37

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Brocade Communications Systems BR-1020 Anleitung zur Fehlerbehebung Seite 19