I have LUN mirroring turned on now. But I need to extend the size of the LUN. I cant find this option with a mirrored LUN. I see the option on other LUNs

Ok, one problem I see with mirroring is I cannot extend the size of the LUN once its a mirror. This is a big problem for us.

So I am right clicking the target, and "remove Target" then building my primary mirrored lun using the IMG file that I just removed the target for. Then reattaching my server to that new mirrored LUN?

remote site (DR) mirror.

Is it possible to Mirror an Existing LUN. I could not find a way to do this. Also could not find a good walkthrough document on the subject.