<div dir="auto">Hi Tomas, <div dir="auto"><br></div><div dir="auto">Ok but how then pacemaker or the fence agent knows which route to take to reach the vCenter? </div><div dir="auto">Btw. Do I have to add the stonith resource on each of the nodes or is it just enough to add it on one as for other resources?</div><div dir="auto">Thank you!</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">pt., 15.03.2019, 15:48 użytkownik Tomas Jelinek <<a href="mailto:tojeline@redhat.com">tojeline@redhat.com</a>> napisał:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dne 15. 03. 19 v 15:09 Adam Budziński napsal(a):<br>
> Hello Tomas,<br>
> <br>
> Thank you! So far I need to say how great this community is, would <br>
> never expect so much positive vibes! A big thank you your doing a great <br>
> job!<br>
> <br>
> Now let's talk business :)<br>
> <br>
> So if pcsd is using ring0 and it fails will ring1 not be used at all?<br>
<br>
Pcs and pcsd never use ring1, but they are just tools for managing <br>
clusters. You can have a perfectly functioning cluster without pcs and <br>
pcsd running or even installed, it would be just more complicated to set <br>
it up and manage it.<br>
<br>
Even if ring0 fails, you will be able to use pcs (in somehow limited <br>
manner) as most of its commands don't go through network anyway.<br>
<br>
Corosync, which is the actual cluster messaging layer, will of course <br>
use ring1 in case of ring0 failure.<br>
<br>
> <br>
> So in regards to VMware that would mean that the interface should be <br>
> configured with a network that can access the vCenter to fence right? <br>
> But wouldn't it then use only ring0 so if that fails it wouldn't switch <br>
> to ring1?<br>
<br>
If you are talking about pcmk_host_map, that does not really have <br>
anything to do with network interfaces of cluster nodes. It maps node <br>
names (parts before :) to "ports" of a fence device (parts after :). <br>
Pcs-0.9.x does not support defining custom node names, therefore node <br>
names are the same as ring0 addresses.<br>
<br>
I am not an expert on fence agents / devices, but I'm sure someone else <br>
on this list will be able to help you with configuring fencing for your <br>
cluster.<br>
<br>
<br>
Tomas<br>
<br>
> <br>
> Thank you!<br>
> <br>
> pt., 15.03.2019, 13:14 użytkownik Tomas Jelinek <<a href="mailto:tojeline@redhat.com" target="_blank" rel="noreferrer">tojeline@redhat.com</a> <br>
> <mailto:<a href="mailto:tojeline@redhat.com" target="_blank" rel="noreferrer">tojeline@redhat.com</a>>> napisał:<br>
> <br>
> Dne 15. 03. 19 v 12:32 Adam Budziński napsal(a):<br>
> > Hello Folks,____<br>
> ><br>
> > __ __<br>
> ><br>
> > Tow node active/passive VMware VM cluster.____<br>
> ><br>
> > __ __<br>
> ><br>
> > /etc/hosts____<br>
> ><br>
> > __ __<br>
> ><br>
> > 10.116.63.83 srv1____<br>
> ><br>
> > 10.116.63.84 srv2____<br>
> ><br>
> > 172.16.21.12 srv2cr1____<br>
> ><br>
> > 172.16.22.12 srv2cr2____<br>
> ><br>
> > 172.16.21.11 srv1cr1____<br>
> ><br>
> > 172.16.22.11 srv1cr2____<br>
> ><br>
> > __ __<br>
> ><br>
> > __ __<br>
> ><br>
> > I have 3 NIC’s on each VM:____<br>
> ><br>
> > __ __<br>
> ><br>
> > 10.116.63.83 srv1 and 10.116.63.84 srv2 are networks used to<br>
> > access the VM’s via SSH or any resource directly if not via a<br>
> VIP.____<br>
> ><br>
> > __ __<br>
> ><br>
> > Everything with cr in its name is used for corosync<br>
> communication, so<br>
> > basically I have two rings (this are two no routable networks<br>
> just for<br>
> > that).____<br>
> ><br>
> > __ __<br>
> ><br>
> > My questions are:____<br>
> ><br>
> > __ __<br>
> ><br>
> > __1.__With ‘pcs cluster auth’ which interface / interfaces should<br>
> I use<br>
> > ?____<br>
> <br>
> Hi Adam,<br>
> <br>
> I can see you are using pcs-0.9.x. In that case you should do:<br>
> pcs cluster auth srv1cr1 srv2cr1<br>
> <br>
> In other words, use the first address of each node.<br>
> Authenticating all the other addresses should not cause any issues. It<br>
> is pointless, though, as pcs only communicates via ring0 addresses.<br>
> <br>
> ><br>
> > __2.__With ‘pcs cluster setup –name’ I would use the corosync<br>
> interfaces<br>
> > e.g. ‘pcs cluster setup –name MyCluster srv1cr1,srv1cr2<br>
> srv2cr1,srv2cr2’<br>
> > right ?____<br>
> <br>
> Yes, that is correct.<br>
> <br>
> ><br>
> > __3.__With fence_vmware_soap inpcmk_host_map="X:VM_C;X:VM:OTRS_D"<br>
> which<br>
> > interface should replace X ?____<br>
> <br>
> X should be replaced by node names as seen by pacemaker. Once you<br>
> set up<br>
> and start your cluster, run 'pcs status' to get (amongs other info) the<br>
> node names. In your configuration, they should be srv1cr1 and srv2cr1.<br>
> <br>
> <br>
> Regards,<br>
> Tomas<br>
> <br>
> > __ __<br>
> ><br>
> > Thank you!<br>
> ><br>
> ><br>
> > _______________________________________________<br>
> > Users mailing list: <a href="mailto:Users@clusterlabs.org" target="_blank" rel="noreferrer">Users@clusterlabs.org</a><br>
> <mailto:<a href="mailto:Users@clusterlabs.org" target="_blank" rel="noreferrer">Users@clusterlabs.org</a>><br>
> > <a href="https://lists.clusterlabs.org/mailman/listinfo/users" rel="noreferrer noreferrer" target="_blank">https://lists.clusterlabs.org/mailman/listinfo/users</a><br>
> ><br>
> > Project Home: <a href="http://www.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org</a><br>
> > Getting started:<br>
> <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><br>
> > Bugs: <a href="http://bugs.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://bugs.clusterlabs.org</a><br>
> ><br>
> _______________________________________________<br>
> Users mailing list: <a href="mailto:Users@clusterlabs.org" target="_blank" rel="noreferrer">Users@clusterlabs.org</a> <mailto:<a href="mailto:Users@clusterlabs.org" target="_blank" rel="noreferrer">Users@clusterlabs.org</a>><br>
> <a href="https://lists.clusterlabs.org/mailman/listinfo/users" rel="noreferrer noreferrer" target="_blank">https://lists.clusterlabs.org/mailman/listinfo/users</a><br>
> <br>
> Project Home: <a href="http://www.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org</a><br>
> Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><br>
> Bugs: <a href="http://bugs.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://bugs.clusterlabs.org</a><br>
> <br>
> <br>
> _______________________________________________<br>
> Users mailing list: <a href="mailto:Users@clusterlabs.org" target="_blank" rel="noreferrer">Users@clusterlabs.org</a><br>
> <a href="https://lists.clusterlabs.org/mailman/listinfo/users" rel="noreferrer noreferrer" target="_blank">https://lists.clusterlabs.org/mailman/listinfo/users</a><br>
> <br>
> Project Home: <a href="http://www.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org</a><br>
> Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><br>
> Bugs: <a href="http://bugs.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://bugs.clusterlabs.org</a><br>
> <br>
_______________________________________________<br>
Users mailing list: <a href="mailto:Users@clusterlabs.org" target="_blank" rel="noreferrer">Users@clusterlabs.org</a><br>
<a href="https://lists.clusterlabs.org/mailman/listinfo/users" rel="noreferrer noreferrer" target="_blank">https://lists.clusterlabs.org/mailman/listinfo/users</a><br>
<br>
Project Home: <a href="http://www.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org</a><br>
Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" rel="noreferrer noreferrer" target="_blank">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><br>
Bugs: <a href="http://bugs.clusterlabs.org" rel="noreferrer noreferrer" target="_blank">http://bugs.clusterlabs.org</a><br>
</blockquote></div>