[PVE-User] Cluster HA withtou Fence Device !

Gilberto Nunes gilberto.nunes32 at gmail.com
Sat Jul 5 21:37:23 CEST 2014


Today I have deploy a tree node plus storage scenario in a lab.
First at all, I image that I need configure fence device, as docs demand...
So, I decide to use a MAnaged Switch (DLikn DES-3028).
But, I realize that even without fence configuratio HA works properly and
NICE, I might add..

Here's the configuration:

<?xml version="1.0"?>
<cluster config_version="18" name="CLUSTER">
  <cman expected_votes="3" keyfile="/var/lib/pve-cluster/corosync.authkey"/>
   <quorumd allow_kill="0" interval="3" label="quorum" tko="10" votes="1">
   <heuristic interval="3" program="ping -c1 -w1" score="1"
   <heuristic interval="3" program="ip addr | grep eth0 | grep -q UP"
score="2" tko="3"/>
 <totem token="54000"/>
    <clusternode name="pve01" nodeid="1" votes="1">
    <clusternode name="pve02" nodeid="2" votes="1">
    <clusternode name="pve03" nodeid="3" votes="1">
     <failoverdomain name="serverfailover" ordered="1" restricted="0">
       <failoverdomainnode name="pve1" priority="1"/>
       <failoverdomainnode name="pve2" priority="2"/>
       <failoverdomainnode name="pve3" priority="3"/>
    <pvevm autostart="1" vmid="100"/>

I always though that I need fence device in order to make HA work...


Gilberto Ferreira
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