[ClusterLabs] difference between external/ipmi and fence_ipmilan

[Kristoffer Grönlund]

"Stefan K" <Shadow_7 at gmx.net> writes:

> OK I see, but it would be good if somebody mark one of this as deprecated and then delete it. So that noone get confused about these.
>

The external/* agents are not deprecated, though. Future agents will be
implemented in the fence-agents framework, but the existing agents are
still being used (not by RH, but by SUSE at least).

Cheers,
Kristoffer

> best regards
> Stefan
>
>> Gesendet: Dienstag, 26. Juni 2018 um 18:26 Uhr
>> Von: "Ken Gaillot" <kgaillot at redhat.com>
>> An: "Cluster Labs - All topics related to open-source clustering welcomed" <users at clusterlabs.org>
>> Betreff: Re: [ClusterLabs] difference between external/ipmi and fence_ipmilan
>>
>> On Tue, 2018-06-26 at 12:00 +0200, Stefan K wrote:
>> > Hello,
>> > 
>> > can somebody tell me the difference between external/ipmi and
>> > fence_ipmilan? Are there preferences?
>> > Is one of these more common or has some advantages? 
>> > 
>> > Thanks in advance!
>> > best regards
>> > Stefan
>> 
>> The distinction is mostly historical. At one time, there were two
>> different open-source clustering environments, each with its own set of
>> fence agents. The community eventually settled on Pacemaker as a sort
>> of merged evolution of the earlier environments, and so it supports
>> both styles of fence agents. Thus, you often see an "external/*" agent
>> and a "fence_*" agent available for the same physical device.
>> 
>> However, they are completely different implementations, so there may be
>> substantive differences as well. I'm not familiar enough with these two
>> to address that, maybe someone else can.
>> -- 
>> Ken Gaillot <kgaillot at redhat.com>
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-- 
// Kristoffer Grönlund
// kgronlund at suse.com