we have to plan backup sql clustred server useing lan free back option how meny license for this ..

What is your question/problem?

Have a look @ this KB too - http://www.symantec.com/business/support/index?page=content&id=TECH68820&actp=search&viewlocale=en_US&searchid=1297256738560

There are couple of methods mentioned & accordingly you can opt for licenses.

That TN has nothing to do with the OP's question...

Why do backups and restores use the RJ45 connection to send and receive communication during jobs instead of using the Fiber Channel card

OP's query - we have to plan backup sql clustred server useing lan free back option how meny license for this

I have provided a KB article which mentions 2 methods for lan-free backups. Based on the method he chooses, he needs appropriate license.

Pls explain how this TN has nothing to do with the OP's question.

...I guess because it looks like the SAN SSO that I mentioned above...?

@ CraigV - IF you prefer we can carry this discussion in private, rather you marking down my comments which I don't think are appropriate nor have a valid reason to do so.

I would be happy to explain to you as to how the above TN is relevant to the OP's query & secondly, not the same as your earlier response.

...and you can read up further on SAN SSO:

http://www.symantec.com/business/support/index?page=content&id=HOWTO21786 (will apply to BE 2012 as well!)

http://www.symantec.com/business/support/index?page=content&id=HOWTO24286

http://www.symantec.com/business/support/index?page=content&id=TECH32597

You can use your existing SAN, but your cluster nodes MUST be attached to the SAN too, or they will simply use the LAN. No need to purchase any additional hardware if this already exists.

Thanks!