[Pacemaker] CMAN, corosync & pacemaker

[Lars Marowsky-Bree]

On 2013-03-21T15:28:17, Leon Fauster <leonfauster at googlemail.com> wrote:

> > I believe the preferred pacemaker based HA configuration in RHEL 6.4 uses all three packages and the preferred configuration in SLES11 SP2 is just corosync/pacemaker (I do not believe CMAN is even available in SLE-HAE).
> > Why the different approaches and what is the advantage of each configuration?
> cman is part of the RH cluster suite - the motivations of the different ha approaches for 
> both vendors are for sure more based in strategic/marketing needs.

There's also a technical point of cman/pacemaker not being available
when SLE HA 11 was created, and it's not possible to do a rolling
upgrade to this configuration. Hence, cman will not appear in SLE HA
11.

If there is a technical benefit to the approach, we will reevaluate this
for SLE HA 12.


Regards,
    Lars

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Architect Storage/HA
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