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hurdle
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load balancing iSCSi

I noticed in one of the guides they reocmmend that you use two different vmkernal ports with two different subnets to load balance an acitve/active storage aray.   Is the two different subnets a requirement.  If so, why?  Our entire storage solution is currently one on subnet  and doing some modifications to it is not an option at this time.

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Josh26
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hurdle wrote:

I noticed in one of the guides they reocmmend that you use two different vmkernal ports with two different subnets to load balance an acitve/active storage aray.   Is the two different subnets a requirement.  If so, why?  Our entire storage solution is currently one on subnet  and doing some modifications to it is not an option at this time.

For many vendors, it's a SAN vendor recommendation.

Follow your vendor's recommendations, if they recommend using a single subnet then you should be fine.

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onoski
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Have a read through this blog post article is it would answer your question: http://paulgrevink.wordpress.com/2011/07/26/configure-vmware-esxi-4-1-networking/

Best wishes and hope this helps.

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Josh26
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hurdle wrote:

I noticed in one of the guides they reocmmend that you use two different vmkernal ports with two different subnets to load balance an acitve/active storage aray.   Is the two different subnets a requirement.  If so, why?  Our entire storage solution is currently one on subnet  and doing some modifications to it is not an option at this time.

For many vendors, it's a SAN vendor recommendation.

Follow your vendor's recommendations, if they recommend using a single subnet then you should be fine.

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mcasekar
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Can you have a look of Cormac Hogan blog and I hope it helps you.

http://blogs.vmware.com/vsphere/2011/08/vsphere-50-storage-features-part-12-iscsi-multipathing-enhan...

Regards| Rajasekar.N| "If you find this answer useful, please consider awarding points by marking the answer correct or helpful"