The Virtualization Practice

Cloud Computing

Cloud Computing focuses upon how to construct, secure, manage, monitor and use public IaaS, PaaS, and SaaS clouds. Major areas of focus include barriers to cloud adoption, progress on the part of cloud vendors in removing those barriers, where the line of responsibility is drawn between the cloud vendor and the customer for each of IaaS, PaaS and SaaS clouds, ...
as well as the management tools that are essential to deploy in the cloud, ensure security in the cloud and ensure the performance of applications running in the cloud. Covered vendors include Amazon, VMware, AFORE, CloudSidekick, CloudPhysics, ElasticBox, Hotlink, New Relic, Prelert, Puppet Labs and Virtustream.

The right approach to monitoring a virtual or cloud based environment is to start with a clean sheet of paper, determine your requirements, and assemble a horizontally layered solution out of best of class vendor solutions that address each layer. Vendors should be evaluated on their mastery of one or more layers, their ability to keep up with the change in that layer, and their ability to integrate with adjacent layers.

Unlike last year where there were many virtualization security vendors existed at RSA Conference, there was a noticeable lack of them within booths, yet all of them were here to talk to existing and potential customers. However, there were many vendors offering identity management in the cloud for these I asked the identity management product owners the following question:

How can you prove identity in the cloud?

While we may well be on the road towards VMware becoming the layer of software that talks to the hardware in the data center – removing Microsoft from that role, this is not the end of Windows. If Windows were just an OS, it would be severely threatened VMware insertion into the data center stack. But Windows is not just an OS. Windows is also a market leading applications platform with .NET have a far greater market share and base of developers than vFabric. Windows is also in the process of becoming a PaaS cloud – one that will be living at Microsoft, at thousands of hosting providers, and at probably every enterprise that is a significant Microsoft customer. This incarnation of Windows is at the beginning of its life, not the end.

The next true IT industry revolutionary product will be software, virtualization and cloud technology that does not require underlying physical hardware resources (servers, network and disk storage). While we wait for that revolutionary technology to appear outside of marketing or computer generated animations, there remains the need to protect cloud and virtual environments and their underling disk storage. Underlying disk storage includes among others solid state device (SSD) as well hard disk drive (HDD) and Removable Hard Disk Drive (RHDD) packaged in different types of solutions accessed via shared SAS, iSCSI, FC, FCoE or NAS.

Distributed Virtual Switch Failures: Failing-Safe

In my virtual environment recently, I experienced two major failures. The first was with VMware vNetwork Distributed Switch and the second was related to the use of a VMware vShield. Both led to catastrophic failures, that could have easily been avoided if these two subsystems failed-safe instead of failing-closed. VMware vSphere is all about availability, but when critical systems fail like these, not even VMware HA can assist in recovery. You have to fix the problems yourself and usually by hand. Now after, the problem has been solved, and should not recur again, I began to wonder how I missed this and this led me to the total lack of information on how these subsystems actually work. So without further todo, here is how they work and what I consider to be the definition for fail-safe.

Todd Nielsen has already succeeded twice at what he is now being asked to do at VMware – once at Microsoft and once at BEA. This time what hangs in the wind is VMware’s ultimate destiny. Will VMware be the device driver to the dynamic data center (vSphere), or will VMware be that and the next generation application platform for IT as a Service and Public Cloud based applications?

At last year’s VMworld in San Francisco Stephen Deasy (Director, R&D, VMware) and Srinivas Krishnamurti (Senior Director, Mobile Solutions, VMware) announced VMware’s plans for a type II mobile hypervisor platform. Three months later VMware and LG have announced a partnership to install VMware Mobile Virtualization Platform (MVP) on LG smart phones starting in 2011. While significant questions remain about the viability of this partnership, the need for a mobile virtualization solution cannot be stressed enough.