On Oct 24, 2010, at 5:24 PM, Robinson, Eric wrote:

>> Heartbeat is not deprecated, it is still supported by Linbut 
>> folks. (Many thanks to them). But if you need clvmd, GFS2, 
>> you would have to use corosync, for example.   
> 
> It may not be "deprecated" per se, but there is no "getting started"
> guide on the ClusterLabs site for using PaceMaker+Heartbeat like there
> are for OpenAIS and Corosync. And there definitely seems to be a
> perception in the community, correct or not, that heartbeat's days are
> numbered.
> 
> I notice that when I did 'yum install pacemaker', I got both corosync
> and heartbeat with it.
> 
> [r...@ha07a ~]# rpm -qa|grep -i heart
> heartbeat-3.0.3-2.3.el5
> drbd-heartbeat-8.3.8.1-1
> heartbeat-libs-3.0.3-2.3.el5
> heartbeat-libs-3.0.3-2.3.el5
> [r...@ha07a ~]# rpm -qa|grep -i coros
> corosync-1.2.7-1.1.el5
> corosynclib-1.2.7-1.1.el5
> corosynclib-1.2.7-1.1.el5
> [r...@ha07a ~]#

Don't let me even start on that :) But I suggest you at least to add 
multilib_policy=best into /etc/yum.conf.

> 
> Can you suggest a good guide for getting started with
> heartbeat+pacemaker instead of corosync+pacemaker?
> 

Even in "Cluster from scratch" the corosync part is minimal, probably 2 pages 
out of 100.
And as said - corosync is used, because of GFS2 resources in the example 
cluster. 
DMC (DRBD Management Console), I suggested earlier, will create and even 
populate heartbeat configuration for you.
But don't let me stop you from using corosync, you still can build your 
particular cluster with the same amount of hardware.
Use redundant bonding with two switches and one corosync ring and have your 
direct cable links (no need for cross-over cables on gigabit ethernets, by the 
way) between DRBD nodes.
Absolutely the same pacemaker configuration.

Vadym




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