Redhat Cluster Fencing Method for San Boot Nodes
Posted on 2012-04-02
We have two nodes redhat cluster,
tc1 & tc2
Existing Cluster Conf tcbi1 & tcbi2
Fencing Method = Brocade
OS = Installed on Raid 1 on each server using local disks.
15 Luns connected.
2 NICs = 1 Public and another for Heartbeat on each server.
Now we are planning to upgrade our hardware with the same mentioned configuration. However one difference will be there the two new nodes are going to boot from SAN. my question is can we use same fencing method?
if we used same brocade fencing method after fencing server will lose storage access as OS is booting from SAN leading system to crash.
** what are my options?
Our New Hardware:
Server : Fujitsu BX960 booting from SAN.
Storage : EMC CX4-120
OS : Redhat Linux 5.7 64x OS.
we are using EMC powerpath 5.6 for multipathing.
looking for experts help on this.