HP c7000 Chassis Administration Tips and Tricks
Several of my customers use HP C7000 Blade Chassis for their ESXi hosts. I've picked up a few tips and tricks for working with that chassis over the years, so I figured that I'd post them here. The Virtual Connect (the blade chassis's networking component) has a feature that can prevent pause frames from flooding a network by disconnecting a blade that is sending an excessive number of them. Unfortunately, every now and then, it detects an ESXi host's uplink as sending such a number of pause frames and so disconnects that network adapter. Fortunately, it's really easy to allow traffic to flow through that port once again. Just SSH into the Virtual Connect (you can get the address by looking at the "Virtual Connect Manager" link in the Onboard Administrator interface. Once you're connected, use the show port-protect command to see if there are any ports that are in a blocking state. If so, you can use the reset port-protect command to res...