Thursday, October 22, 2015

What is Driving Server SAN Adoption?

Business Challenge 

Why are IT leaders so interested in server SAN solutions? Let's look at some of the challenges facing IT departments. Computer Economics reported that there was a nominal increase in IT budgets from 2.4% in 2014 to 3.0% in 2015, more companies are investing in information technology; but that doesn’t show the complete picture of IT investments.

IT Budget Change from Prior Year

When we look at the IT spend as a percentage of revenue, Computer Economics reports that it decreased in 2015 to 2.3%. Even though there was an uptick in IT budgets, the amount of IT spend as a percentage of revenue declined showing IT budgets are not keeping pace with company growth.

Wednesday, October 21, 2015

vRealize Operations 6.1 vSphere VMs Memory dashboard

In today's post, I wanted to explore the vSphere VMs Memory dashboard in vRealize Operations 6.1 to find potential memory contention issues. But before we dive into vRealize Operations, I wanted to review memory management in vSphere.

Let's start by looking at Utilization on the Monitor tab of the vSphere Web Client to understand the memory consumption of a guest virtual machine. In my example below, we are looking at my vRealize Operation Manager 6.1 appliance.

On the Virtual Machine Memory widget, VM Consumed is the amount of physical memory consumed by the virtual machine for guest memory. Unlike host consumed memory, virtual machine consumed memory does not include overhead memory.

The bottom bar is VM Overhead Consumed, which is the amount of machine memory used by the VMkernel to run the virtual machine.
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