Removing and Readding a cluster to SCVMM without downtime (with logical switches)

This is going to be a short post today, but I wanted to share something that I found really cool.

So you just spent all this time getting the your Hyper-V networking juuuuuust right or getting a Hyper-V logical switch working in SCVMM and now you need to remove and readd the cluster to SCVMM (maybe you are hitting a bug and that's the workaround).  Now you've got to undo and redo all your hard work (like you would if you were using a dVS on vCenter).  There goes the weekend!

Not so fast!  SCVMM is simply a management layer, unlike vCenter which is a management and feature layer.  This means that all of the config is stored on the host.  Short story?

You can remove a host that is using a logical switch and add it back to SCVMM without any need to change the configuration!  SCVMM will automatically pick up where it left off when you add it back!

Hopefully that can save you a few hours (days?) of work!