Hello, and welcome back. In this demonstration, I am going to show you how to redeploy a virtual machine. Now what happens when you redeploy a virtual machine is essentially the VM is moved to a new Azure node on the underlying hardware. You would typically redeploy a virtual machine if you're having trouble SSH into it, or RDP into it. Or if an application is having issues with connectivity.

Before that move happens, the VM is powered off and then powered back on that new node. I should point out that all the configuration for that VM remains the same. The only thing that changes is the underlying physical node that the VM relies on.

On the screen here, I'm logged in to my Azure portal and I'm at the overview page for VMO two, and this is my Linux machine. To redeploy this VM, all I need to do is scroll down to near the bottom. Under support and troubleshooting, and you'll have this option to redeploy.

If we click on redeploy here, what I'm getting here is a note from Azure telling me that if I redeploy my virtual machine, it's going to migrate it to a new host. It also warns me that the VM is going to be restarted. And if there's any data on the temporary drive, we're going to lose that. It also warns me that during a redeployment, the VM is unavailable, which makes sense, you're moving it to another host.

To begin the redeployment, we simply click the blue redeploy button down here at the bottom, and it begins the redeployment process. This process doesn't take long, but it does cause an outage. So you need to keep that in mind in a production environment.

If we click on our bell up here, we can see that the redeployment is occurring. If we scroll over and go back into our overview, you can actually see that the redeployment is already finished. If we click on our overview here, we can see our VM is already running. There's nothing in the overview page that will tell you anything is different. It's just the underlying hardware that's changed.

So there's nothing you can see here. But what Azure has done is taken that machine, moved it to new hardware and then brought it back up on that new hardware. And that's pretty much it. And like I said, the only time you're going to really encounter redeployment in a production environment, will be situations where you can't remote to that VM or if the application loses connectivity.