Dear All,

I am going to upgrade my NIC card drivers for all exchange mailbox servers. its creating problem for cluster.

So i have 2 node in DC site and one node in DR site. All are in single DAG. I want to upgrade only DC site servers first.

So what whould be best option to upgrade the drivers without any downtime.

If anybody done in past, please suggest or share the exp.

Thanks,

MS

Assuming that you have at least one redundant copy of each database on one of the other nodes, then you can use the PowerShell maintenance scripts to move the active databases to one of the other nodes, perform the NIC driver update, and then run the script to end maintenance mode. There is an article here on how to use the maintenance scripts. Just do one server at a time, and you should be fine (again - unless you have databases that are only present on a single server - those obviously cannot move to another node).

Mike

Thanks Mike,

I will follow the same steps.

Regards,

MS