[ClusterLabs] IPMI and APC switched PDUs fencing agents

Marek Grac mgrac at redhat.com
Wed Jun 7 04:09:53 EDT 2017


On Tue, Jun 6, 2017 at 3:52 PM, Jean-Francois Malouin <
Jean-Francois.Malouin at bic.mni.mcgill.ca> wrote:

> Hi,
> Starting to configure a two-nodes cluster, runnning Debian Jessie 8.8
> Stack: corosync, pacemaker version 1.1.15-e174ec8.
> I'm confused with the different fencing agents related to IMPI, it seems
> that there are a few: external/ipmi, fence_ipmilan, ipmilan.  Right now
> I'm using external/ipmi which seems to do the job as far as the little
> testing I've done. But can someone explain in what the other agents
> differ?

In general, they are almost same as they are using ipmitool binary. There
are few differences, e.g. better configurability or some specific features
but as long as your agent works there is no reason to change it.

> I also have 2 switched PDUs, APC AP7921 that I plan to use as second
> stonith devices. Any hints and best practice, docs on how to make this
> work in conjonction with the IPMI fencing agent.

Take a look at


if you are using crm, the syntax will differ but the idea will be the same.

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