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PowerConnect 2724, iSCSI and switch redundancy
Hi Could you advice me if this configuration will work? I want to use 4xDL380 G5 (as Hyper-V hosts and clustering) with 2xNIC on each (working in team) for iSCSI network. Servers are connected to two switches DELL PowerConnect 2724. Every NIC from team plugged to different switch. I’m going to use DELL MD3000i with two controllers (4 ports) connected to the some switches. Everything to eliminate single point of failure (NICs and Switches). I wonder if these switches will work correctly. I found examples of similar configuration on DELL webpage but with PowerConnect 5000 which is 10 times more expensive. I don’t want to spend money for something which is not useful. Could you tell me if it will work? Maybe some additional advices about this configuration? Is any better solution? And just in case (I know we can’t use teaming for Hyper-V) maybe someone found solution for high availability for public Hyper-V network similar like for iSCSI network? Best Regards
Many thanks for your reply,
So I understand to provide switch redundancy is not easy.
I’ve just found Microsoft doesn’t support NIC Teaming however they recommend to use MPIO which look much better option.
Do you think it will work correctly on Power Connect 2724?
If you have two NICs in a server, you can:
- team them together, and connect them to a single switch (the "single" switch could be a stack of 6224s)
- use them as failover, connected to different switches for redudnacy
For the first option, you might get 2gbps/sec. to the server, but you need stackable switches. You might not get 2gbps, depending on your data application and the way the switch is configured to assign traffic flows to LAG members.
For the second option, you could use two 2724s with a LAG between them for redundancy and throughput. Bandwidth to each server would be limited to 1gbps, with a failover path. If you were able to associate half the VMs with one NIC as primary, and half the VMs with the other NIC as primary, then you may be able to get the higher bandwidth as well.
DRNO10
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Posted August 28th, 2008 13:00