Brocade Communications Systems BR-1020 Guía para resolver problemas descargar pdf (Pagina 30)

12 Brsocade Adapters Troubleshooting Guide

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General HBA and CNA problems

Failed to connect to agent on host... error when using HCM

An “Adapter failed to connect to agent on host...” message indicates that the client application

cannot connect to the HCM Agent listening on the configured port - normally TCP port 34568. Refer

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

problem.

Possible Causes:

• The agent is not running.

• The agent is not accepting connections on the expected port.

• The agent is not listening on the expected port.

• Communication between the client and agent is blocked by a firewall preventing access to the

port (usually only a consideration for remote HCM management).

Action: For Linux, Solaris, and VMware systems, perform the following steps to help isolate the

problem:

1. Verify that the agent is running by executing the appropriate status command for your

operating system as described in the Brocade Adapters Installation and Reference Manual.

Refer to the section on modifying HCM agent operation.

2. If you receive a message that the hcmagent is stopped, restarting the agent should resolve the

problem. To restart, use the appropriate start command for your operating system which is also

described in the Brocade Adapters Installation and Reference Manual.

Note that one command described in the manual restarts the agent, but the agent will not

restart if the system reboots or the agent stops unexpectedly. Another command restarts the

agent, but the agent will restart if the system reboots.

3. Confirm the HCM agent is responding to requests using the expected user password. Execute

the following command to connect to the HCM agent and force it to collect the adapter driver

supportsave data.

NOTE

This command is a single line. The localhost can be replaced with a different IP address.

wget --no-check-certificate

https://admin:password@localhost:34568/JSONRPCServiceApp/

SupportSaveController.do

If successful, the file SupportSaveController.do (actually a zip format file) will contain the data

from the HCM agent.

4. If you are managing a VMware host system through HCM from a remote system, the host’s

firewall may be blocking TCP/IP port 34568, which allows agent communication with HCM.

Use the following command to open port 34568:

/usr/sbin/esxcfg-firewall-o 34568,tcp,out,https

Use Windows Firewall and Advanced Service (WFAS) to open port 34568.

NOTE

You can change the default communication port (34568) for the agent using procedures in the

“Installation” chapter of the Brocade Adapters Installation and Reference Manual. Refer to the

section on modifying HCM agent operation.

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