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sunhux

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How to simulate MSCS active - active nodes error condition

Hi

We suspect that we have a few incidents of both our Win 2008 x64 R2
Enterprise becoming active-active (instead of the usual active-passive)
& this caused contention for Quorum & a few cluster SAN disk resources
contention which resulted in the Quorum disk (& the cluster SAN disk)
becoming unavailable for a short while on several occasions.

How can I simulate this error condition?  We want to see if the
Event Viewer event id code matches what we got on those incidents.


We also had 2 incidents of the MSCS cluster IP (or perhaps the MS
SQL virtual IP) address being duplicated (ie both nodes contending to
grab that virtual cluster IP address)

Can we just pull out the LAN cables of both member servers?

The cluster is hosting MS SQL 2008 x64 Enterprise database
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Racim BOUDJAKDJI
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sunhux

ASKER

I don't want to simulate cluster failure (ie shutdown the
cluster from Failover Cluster Manager ? )

What I want is to simulate a situation where both nodes
became active trying to contend / fight for the same
cluster resources
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ASKER

I'm referring to the Quorum disk & cluster SAN disk resources.

Will it ever be possible in Win 2008 MSCS that both nodes
become active & broadcast out the MS SQL virtual IP & 
MSCS cluster virtual IP?

I've seen firewall in HA mode becoming active-active ie both
firewalls allowing traffic to pass through.
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