IBM SAN has 6 switches out of which : DMZ has 2 switches-in a team. Data has 2 switches-in a team. Remaining 2 are allotted for other uses, but not in a team . Windows 2008R2 servers are configured on HyperV. Exchange CAS/Hub servers are connected to team interface which are in IBM blade servers. 1 Situation : When I’m configuring NLB using this team interface I’m unable to add second host in NLB cluster. 2 situation : When I connect these CAS/Hub servers in a separate NIC which is not teamed ,I’m able to configure

I don't see any error message in your post. Please post the error or anything you see related to the issue in Event Viewer. Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

Hi abdulMateentaj, Could you explain your problem in detail? If you want to know the different between these two solution, you can have a read for this thread: Hub/Cas E2k7 NLB over Teaming interfaces http://social.technet.microsoft.com/Forums/en-US/exchangesvrdeploy/thread/6db575c3-5ee3-4ba1-af46-eed6feb2628b Thanks, Evan Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Teaming and virtualization and NLB and SAN? Not pretty. Personally, I would eliminate all of the teaming and use NLB where necessary and MPIO where appropriate. No need to team anything. "abdulMateentaj" wrote in message news:aa65ee2a-e82b-48ad-bf22-d5110cf5acad... IBM SAN has 6 switches out of which : DMZ has 2 switches-in a team. Data has 2 switches-in a team. Remaining 2 are allotted for other uses, but not in a team . Windows 2008R2 servers are configured on HyperV. Exchange CAS/Hub servers are connected to team interface which are in IBM blade servers. 1 Situation : When Im configuring NLB using this team interface Im unable to add second host in NLB cluster. 2 situation : When I connect these CAS/Hub servers in a separate NIC which is not teamed ,Im able to configure Mark Arnold, Exchange MVP.