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iLO2 fencing and Red Hat Cluster Suite 5

 
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iLO2 fencing and Red Hat Cluster Suite 5

Hi all,

we have a two node cluster with quorum disk (EMC CX4-120) and fence devices (iLO2) on HP DL380 G6 with RHEL 5.6.
We would to know if exists a method to force the server to stay powered off after fenced.
We made some failure tests on this cluster and we realized that the fenced server will reboot each time.
Is it a normal condition or we could force to keep the server powered off after fencing?

Many thanks in advance.

Regards,

FabioZ

3 REPLIES 3
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Solution

Re: iLO2 fencing and Red Hat Cluster Suite 5

As you noticed, the default action is to reboot the server.

 

At least in RHEL 5.8, there is a way to make the fenced server stay off: you can add the parameter

action="off"

 to the fencing configuration tag(s) in /etc/cluster/cluster.conf. See "man fence_ilo" for more information.

 

I'm not sure if it can added through the Conga GUI - editing the cluster.conf may be the only way.

Remember the RHEL5 cluster configuration editing procedure:

  1. make a copy of the cluster configuration file, to e.g. /tmp/cluster.conf.new.
  2. edit the copy, and remember to increment the version number at the top of the file.
  3. run "ccs_tool update /tmp/cluster.conf.new" to update the configuration in all cluster nodes in a synchronized fashion.

 

MK
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Re: iLO2 fencing and Red Hat Cluster Suite 5

Hi,

 

first of all many thanks for you suggestion, we will try this fix next week and we'll let you know the result!

 

Bye,

 

FabioZ

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Occasional Visitor

Re: iLO2 fencing and Red Hat Cluster Suite 5

Hi,

 

your suggestion works very fine!

Many thanks.

 

Regards,

 

FabioZ