How to Disable the Oracle Server Hardware Management Agent (Hardware Management Agent) Daemon hwmgmtd on BDA V4.2

Asset ID:	1-71-2081716.1
Update Date:	2016-12-29
Keywords:

Solution Type Technical Instruction Sure

Solution 2081716.1 : How to Disable the Oracle Server Hardware Management Agent (Hardware Management Agent) Daemon hwmgmtd on BDA V4.2

Applies to:

Big Data Appliance X4-2 Hardware - Version All Versions and later
Linux x86-64

Goal

On BDA V4.2 it is not possible to install the latest ILOM versions in case of an ILOM bug or issue. This is not supported because BDA hardware checks (and therefore cluster checks) do not support upgraded versions.

On the BDA disabling the hwmgmtd daemon is supported as no BDA monitoring functions rely on it. Therefore, disabling the Hardware Management Agent daemon, hwmgmtd, may provide a workaround on BDA V4.2 for various ILOM related issues.

The steps for disabling the hwmgmtd service are documented here.

Solution

The recommendation is to try the following on one node of the cluster and monitor for any problems.

After making the changes on one node, monitor for the system, say for a week. If everything is running well and no impacts then use dcli to implement the same steps on all nodes of the cluster.

Perform all steps as 'root' user on one node first:

1. Get the service status by:

# service hwmgmtd status

2. Temporarily stop the hwmgmtd service:

# service hwmgmtd stop

3. Get the current configuration. This way you see the settings when enabling again.

# chkconfig --list hwmgmtd

4. Disable hwmgmtd service:

# chkconfig hwmgmtd off

5. Recover the SP. Reset the related Oracle ILOM SP by "reset /SP" in the ILOM CLI.

# ssh node-ilom
-> reset /SP

Are you sure you want to reset /SP (y/n)? y

Once the SP resets it takes a little time before you can get back to the ILOM.

For reference see: Big Data Appliance Owner's Guide - 15.4.1 Connecting to the Command-Line Interface.

Attachments

This solution has no attachment