Tag Archives: Blades

SLEDs, Blades, or Racks? We Are Not Talking about Snow-sport Equipment

DataCenterVirtualizationThe data center is changing, and once again the question of hardware format comes to mind. It is an open secret that I am not a fan of the blade format. Yes, it has flexibility, but that comes at a cost: namely, the loss of density brought by the blade format.  Continue reading SLEDs, Blades, or Racks? We Are Not Talking about Snow-sport Equipment

Blade Physical-Virtual Networking and Virtualization Security

I have been thinking about blades and virtualization security for some time spurred on by a conversation with Brad Hedlund six months ago. Nearly all my customers use Blades and virtualization security is a big concern to them. In my Rethinking vNetwork Security article, I touched on some of the issues in response to Brad’s comments a while back. I would like to now expand that discussion to blades.

There are three sets of blade enclosures I would like to discuss, those that use pass thru networking, those that use standard switching fabric within the enclosures, and those that use flexible interconnects such as HP Flex-10 and Cisco Palo adapters. The last is the so called physical-virtual network device. Continue reading Blade Physical-Virtual Networking and Virtualization Security