Aug2010

Coming Full Circle on Scale Out vs. Scale Up

When I first started with virtualization, the only option you had at the time was single core processors in the hosts. Scale up or scale out was the hot debatable topic when designing your infrastructure. On one side of the coin the idea was to scale up in that it was best to get a few of the biggest servers you could find and load them up with as much memory and processors that you could fit in the box. The end result were some very expensive servers able to run a lot of virtual machines for its time. The other side of the coin presented the idea that it was better to scale out with more, smaller servers to make up the cluster. I have worked in both type of environments and attitudes over the years and as for me, personally, I aligned myself with the scale out philosophy. The simple reason for aligning with the scale out group was host failure.

Aug2010

Working with VMware Update Manager Server

Have you ever considered the best way to plan, design and work with VMware Update Manager (VUM)? In the early days using VMware 3.x when VUM was first released, I would end up installing VUM on the vCenter server itself. After all, that was the recommendation from VMware at the time. I propose that this is no longer the case and I would like to present a list of best practices to follow when working with VMware Update Manager. This list came from VMware, but should only be considered as a guide. Each environment is different and your mileage may / will vary.

Jun2010

Controlling the Virtual Infrastruture

There is a great deal of marketing hype about which hypervisor is better but I have spent some thinking about this and really have to wonder if the hypervisor is what we should really be focusing or concentrating on. A lot of third party vendors are starting to port their products to be able to work with both hypervisors but what about the management server itself? When third party application vendors design their applications to work with VMware or Microsoft hypervisors they have been writing plug-ins for their product to work inside the management server systems and or its client.

Feb2010

Virtualization/Cloud and Multi-Factor Authentication

I was posed with a question today, “I’m looking for some info on account & password management for consultants that visit a lot of customers where they have to do admin stuff.” with a secondary question of “how to manage the account if a constultant leaves?” This was specific to the VMware vSphere but would apply to any hypervisor.

Jun2009

Managing the I/O Performance Aspects of Your Virtual Environment

There are a wide variety of problems that can occur the SAN and physical strorage layers of the virtual insfrastructure, all of which can create serious performance problems for applications and users. Tools from Akorri and Virtual Instruments can address these issues in a variety of ways.