Brocade Communications Systems BR-1020 Guía para resolver problemas descargar pdf (Pagina 21)

Brocade Adapters Troubleshooting Guide 3

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Gathering problem information

• Gather information for support:

- Use appropriate tools on storage targets to gather information such as disk, tape, and

controller model and firmware levels.

- Run the bfa_supportsave BCU command on the host system and save output to a file on

your system.

This command captures all driver, internal libraries, firmware, and other information

needed to diagnose suspected system issues.You can save captured information to the

local file system and send it to support personnel for further investigation.

- Run the Fabric OS supportSave command on any Brocade switch and save output. This

command collects RASLOG, TRACE, supportShow, core file, FFDC data and other support

information.

For details on using the Support Save feature, refer to “Support Save” on page 42.

• Draw a topology map of the SAN from the adapters to the storage targets. Include the

components described in Table 1.

The bfa_supportSave and FOS supportsave commands can provide current information for the

topology map. Also, consider using the Brocade SAN Health products to provide information on

your SAN environment, including an inventory of devices, switches, firmware versions, and SAN

fabrics, historical performance data, zoning and switch configurations, and other data. Click

the Support tab on www.brocade.com for more information on these products.

• Run appropriate diagnostic tools for storage targets.

• Determine what has changed in the SAN. For example, if the SAN functioned without problems

before installing the adapter, then the problem is most likely in the adapter installation or

configuration, adapter hardware, or adapter driver package. Other examples to investigate

could be changes in the switch or storage system firmware, an offline switch, or a

disconnected or faulty cable between the adapter, switch, or storage controller fiber optic

ports.

• Record the time and frequency of symptoms and the period of time symptoms have been

observed.

• Determine if unexpected behavior is intermittent or always present.

• List steps that have been taken to troubleshoot the problem, including changes attempted to

isolate the problem.

TABLE 1 Topology map details

Component How to identify

adapter Model, World-Wide Name (WWN),

and driver release level.

Fibre Channel switches Model, WWN, and Fabric OS

version.

Fiber optic links between

adapter, switches, and storage

ports

Port WWNs connected to all links.

Host hardware Model and hardware revision.

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 109 110

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