Exalogic : Procedure to stop and start all vServers during Compute Node maintenance

Asset ID:	1-79-2158378.1
Update Date:	2017-06-05
Keywords:

Solution Type Predictive Self-Healing Sure

Solution 2158378.1 : Exalogic : Procedure to stop and start all vServers during Compute Node maintenance

Related Items


Oracle Exalogic Elastic Cloud Software
 Exalogic Elastic Cloud X5-2 Hardware
 Exalogic Elastic Cloud X4-2 Hardware
 Oracle Exalogic Elastic Cloud X2-2 Hardware
 Exalogic Elastic Cloud X3-2 Hardware
 Exalogic Elastic Cloud X6-2 Hardware

Related Categories


PLA-Support>Eng Systems>Exalogic/OVCA>Oracle Exalogic>MW: Exalogic Core

In this Document

Purpose

Scope

Details

Preparation

1.1 Download required script.

1.2 Enable script executive mode.

1.3 Save all vServers list.

Problematic Computer Node is CN01 or CN02

2.1 Stop control stack vServers.

2.2 Stop all vServers.

2.3. Power off computer node and perform maintenance tasks.

2.4 Start control stack vServers.

2.5 Start all vServers.

Problematic Computer Node is neither CN01 nor CN02

3.1 Stop all vServers.

3.2 Power off computer node and perform maintenance tasks.

3.3 Start all vServers.

References

Created from <SR 3-12978011036>

Applies to:

Oracle Exalogic Elastic Cloud Software - Version 2.0.4.0.0 and later
Exalogic Elastic Cloud X5-2 Hardware - Version X5 to X5 [Release X5]
Exalogic Elastic Cloud X4-2 Hardware - Version X4 to X4 [Release X4]
Exalogic Elastic Cloud X3-2 Hardware - Version X3 to X3 [Release X3]
Oracle Exalogic Elastic Cloud X2-2 Hardware - Version X2 to X2 [Release X2]
Linux x86-64
Oracle Virtual Server(x86-64)

Purpose

This document provides detailed steps to stop and start all vServers in a Computer Node during a scheduled maintenance window for actions such as failed memory replacement.

Scope

This document should be referred by hardware engineers before creating a task if problematic box needs to power off.

Details

Preparation

1.1 Download required script.

Here : cnode-vserver-control.py

1.2 Enable script executive mode.

chmod u+x cnode-vserver-control.py

1.3 Save all vServers list.

./cnode-vserver-control.py -a save

The script will list the currently running vServer, inspect its vm.cfg searching for the HA flag value, inspect the 'System.img' disk searching for the IPoIB-virt-admin IP address and save these information under '/root/.cnode-vserver-control/vservers-$HOSTNAME.lst'.

If '/root/.cnode-vserver-control/vservers-$HOSTNAME.lst' exists, please backup and delete.

Problematic Computer Node is CN01 or CN02

2.1 Stop control stack vServers.

Method 1 : Refer part "Stopping the whole Exalogic Control stack" in doc 1594223.1.

Method 2 : Use ExaBR.

e.g.

/exalogic-lctools/bin/exabr stop control-stack

2.2 Stop all vServers.

Please refer "3.1 Start all vServers" in this document.

2.3. Power off computer node and perform maintenance tasks.

2.4 Start control stack vServers.

Method 1 : Refer part "Starting the whole Exalogic Control stack" in doc 1594223.1.

Method 2 : Use ExaBR.

e.g.

/exalogic-lctools/bin/exabr start control-stack

2.5 Start all vServers.

Please refer "3.3 Start all vServers" in this document.

Problematic Computer Node is neither CN01 nor CN02

3.1 Stop all vServers.

Stop all Guest vServers by executing:

./cnode-vserver-control.py --force -a stop

Using the '--force' action will stop all vServes including those which enable HA flag.

The default timeout is 180 seconds to begin stopping vServers, you can change timeout by using flag "--stop-timeout"

e.g.

./cnode-vserver-control.py --force -a stop --stop-timeout 90

3.2 Power off computer node and perform maintenance tasks.

3.3 Start all vServers.

Start all Guest vServers by running:

# ./cnode-vserver-control.py -a start

Note: There are some other usages per script cnode-vserver-control.py, please refer the following note for details:

Utility for Stopping & Starting Exalogic Guest vServers (cnode-vserver-control.py) (Doc ID 1945615.1)

References

<NOTE:1594223.1> - How To Stop and Start the Entire Exalogic Control Stack In An Exalogic EECS v2.0.6.0.0 and later Virtual releases
<NOTE:1945615.1> - Utility for Stopping & Starting Exalogic Guest vServers (cnode-vserver-control.py)

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