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тАО08-05-2008 06:24 AM
тАО08-05-2008 06:24 AM
cisco 3020 cluster heartbeat
i have two BL685 which i will be installing SQL 2005 onto and setting up a failover cluster
i can't figure out how to do the heartbeat for the cluster. I don't have the VC module just the cisco 3020's (two of them)
can i do something on the switch config to do this or is it not possible without the VC module
see attachment for current config
i can't figure out how to do the heartbeat for the cluster. I don't have the VC module just the cisco 3020's (two of them)
can i do something on the switch config to do this or is it not possible without the VC module
see attachment for current config
3 REPLIES 3
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тАО08-05-2008 01:08 PM
тАО08-05-2008 01:08 PM
Re: cisco 3020 cluster heartbeat
First off, when the Cisco operates at layer 2 it doesnt have a clue whats happening at Layer 3.
So if you have 4 Servers on VLAN1 and VLAN1 is supposed to be 192.168.1.0/24, you can take 2 of those servers and configure them for 192.168.57.1 and 57.2 and they should be able to ping each other just fine.
now the other thing I would say is you should be able to configure the Cisco 3020 for multiple VLANs so you can take the 2 ports your using for the heartbeat and configure those 2 ports for a new VLAN and that will keep your layer 2 traffic seperated also.
The basic idea here is your using your expensive 3020 to act like a 5 port Linksys for heartbear instead of a crossover for heartbeat. obviously the 3020 is also doing normal networking duties for your Primary 2 NICs on all your blades as well.
As for VC, I assume your talking about Virtual Connect which is entirely different from the Cisco and the 2 modules are mutually exclusive. You should be using 1 or the other in a chassis and usually not both.
Hope that helps,
-Dan
So if you have 4 Servers on VLAN1 and VLAN1 is supposed to be 192.168.1.0/24, you can take 2 of those servers and configure them for 192.168.57.1 and 57.2 and they should be able to ping each other just fine.
now the other thing I would say is you should be able to configure the Cisco 3020 for multiple VLANs so you can take the 2 ports your using for the heartbeat and configure those 2 ports for a new VLAN and that will keep your layer 2 traffic seperated also.
The basic idea here is your using your expensive 3020 to act like a 5 port Linksys for heartbear instead of a crossover for heartbeat. obviously the 3020 is also doing normal networking duties for your Primary 2 NICs on all your blades as well.
As for VC, I assume your talking about Virtual Connect which is entirely different from the Cisco and the 2 modules are mutually exclusive. You should be using 1 or the other in a chassis and usually not both.
Hope that helps,
-Dan
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тАО08-07-2008 02:21 PM
тАО08-07-2008 02:21 PM
Re: cisco 3020 cluster heartbeat
Are you thinking of passing the cluster heartbeat down the internal trunk on ports 23 and 24? Or just within 1 switch?
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тАО08-08-2008 12:06 AM
тАО08-08-2008 12:06 AM
Re: cisco 3020 cluster heartbeat
just within one switch at the moment
not sure i need the extra resilience or complications going across switches
not sure i need the extra resilience or complications going across switches
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