On 12/09/2010 04:31 PM, Dimitri Maziuk wrote: > On 12/9/2010 4:05 AM, Andrew Beekhof wrote: >> On Wed, Dec 8, 2010 at 8:39 PM, Igor Chudov<ichu...@gmail.com> wrote: >>> On Wed, Dec 8, 2010 at 1:32 PM, Serge Dubrouski<serge...@gmail.com> wrote: >>>> Taking into account "simple" the answer is no. You can try RedHat >>>> Cluster Suite on CentOS, but that's not simple. >>>> >>>> What's wrong with DRBD/Pacemaker/Corosync ? >>> >>> DRBD/Pacemaker was complicated, documentation did not exist >> >> Oh really? >> You never saw http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf >> or the linbit site? > > See "LRM operation WebSite_start_0 unknown error" from November, that's > where your pdf led me. By the time I hit "unknown error" starting drbd > resource -- set up exactly as you describe, I've spent close to a week > trying to replicate the setup that takes < an hour. So I replaced it it > with haresources and everything started to work. > > Rasto's video may work, next time I've a drbd cluster to set up and a > week to waste I may give it a try. Other than that, DRBD/Pacemaker > documentation that results in a working "v2" setup in a reasonable > amount of time *does not exist*.
That is true, and the simple reason is that in Heartbeat v2 with the then-integrated crm, you couldn't get _any_ working configuration in a reasonable amount of time. Pacemaker, however, has superseded Heartbeat v2 over a year and a half ago, and you should be using it, either on top of Heartbeat 3 or on top of Corosync. And documentation for creating _that_ kind of setup does exist; see http://www.linbit.com/en/education/tech-guides/ Hope this helps. Florian
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