Brocade Communications Systems BR-1020 Guia de Resolução de Problemas descarregar pdf (Página 35)

Brsocade Adapters Troubleshooting Guide 17

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HBA problems

1. Possible Cause: QoS is not enabled on both switch and adapter port.

Action: Verify if QoS is enabled for an adapter port using the qos -query <port_id> BCU

command. Verify if it is enabled on the switch using the islShow command.

Action: Verify zones on the switch using the Fabric OS cfgActvShow command.

2. Possible Cause: QoS zones not created properly on switch for high, medium, and low priority

targets.

Action: Verify that QoS is configured on switch using instructions in the Fabric OS

Administrator’s Guide.

Unable to create more than 126 Virtual (NPIV) ports for HBA

If you cannot configure more than 126 N-Port ID Virtualization (NPIV) ports (maximum is 255 for

Fiber Channel ) refer to the following descriptions of possible causes and recommended actions to

help resolve the problem.

Possible Cause: The maximum NPIV limit for the connected switch has been reached.

Action: Execute the Fabric OS configure command on the attached switch and change the

maximum logins per port parameter under the F_Port login parameters menu to increase the

maximum NPIV IDs allowed per port.

UEFI boot problems

This section describes problems that may occur when using the Brocade adapter and unified

extensible firmware interface (UEFI) for booting a host system from a remote storage device (boot

over SAN). Possible causes and recommended actions to help resolve the problems are provided.

NOTE

Currently, the Brocade CNAs do not support the boot over SAN feature.

Host not booting from remote LUN

If the host system where the adapter is installed does not boot from the remote boot LUN, refer to

the following descriptions of possible causes and recommended actions to help resolve the

problem.

Possible Cause: Boot from LUN not configured correctly.

Action: If booting the host from a remote boot device, verify whether “boot over SAN” configuration

is complete and correct. For example, verify the following:

• A zone is created on the attached switch that contains only the PWWN of the storage system

port for the boot LUN and the PWWN of the adapter port.

• BIOS or EFI is enabled to support boot over SAN from a specific adapter port.

• BIOS or EFI is configured to boot from a specific LUN.

• The host’s operating system, adapter driver, and other necessary files are installed on the boot

LUN.

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