[Linux-cluster] Shared Storage and Quorum device

[Greg Forte]

As others have mentioned, shared storage is not required in RHEL4/CS4; 
you haven't said what version you're running, but since you pasted links 
to the CS4 docs, I'll draw that conclusion (aside to redhat maintainers 
- why is it that the documentation doesn't seem to explicitly state what 
version(s) it covers anywhere?)

In a 2-node cluster, quorum is achieved when 1 node is down by 
configuring the two_node option in cluster.conf (see 'man cman'). 
Essentially, the cluster is _always_ quorate, as long as cman is running 
on at least one node.  If you don't configure this option, then the 
cluster can only be quorate if both nodes are up (if I understand 
correctly).

-g

Mikhail A Zelikov wrote:
> 1.b If no then how is the quorum is achieved in 2-node cluster when 1 node
> is down?
> 
> Thanks,
> Mike
> 
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