[Pacemaker] Two-Nodes Cluster fencing : Best Practices

[Bruno MACADRÉ]

Hi,

     I've just made a two-nodes Active/Passive cluster to have an iSCSI 
Failover SAN.

     Some details about my configuration :

         - I've two nodes with 2 bonds : 1 for DRBD replication and 1 
for communication
         - iSCSI Target, iSCSI Lun and VirtualIP are constraints 
together to start on Master DRBD node

     All work fine, but now, I need to configure fencing. I've 2 DELL 
PowerEdge servers with iDRAC6.

     First question, is 'external/drac5' compatible with iDrac6 (I've 
read all and nothing about this...) ?

     Second question, is that configuration sufficient (with ipmi) ?

         configure primitive pStN1 stonith:external/ipmi hostname=node1 
ipaddr=192.168.100.1 userid=ipmiuser passwd=ipmipwd interface=lan
         configure primitive pStN2 stonith:external/ipmi hostname=node2 
ipaddr=192.168.100.2 userid=ipmiuser passwd=ipmipwd interface=lan
         location lStN1 pStN1 inf: node1
         location lStN2 pStN2 inf: node2

         And after all :
         configure property stonith-enabled=true
         configure property stonith-action=poweroff

     Third (and last) question, what about quorum ? At the moment I've 
'no-quorum-policy="ignore"' but it's a risk isn't it ?

     Don't hesitate to request me for more information if needed,

     Regards,
     Bruno.

-- 

Bruno MACADRE
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  Ingénieur Systèmes et Réseau     | Systems and Network Engineer
  Département Informatique         | Department of computer science
  Responsable Info SER             | SER IT Manager
  Université de Rouen              | University of Rouen
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