Uncovering Virtual Networking Part-2: Virtual Switches

As discussed in previous post Part-1: Basics, we have two types of switches that are available in vSphere i.e. Standard switch and Distributed switch. So in this post we will explore these switch types. But before we do that, let's dive into basics of switches in virtual architecture first. What is a virtual switch? A … Continue reading Uncovering Virtual Networking Part-2: Virtual Switches

Uncovering vSphere virtual networking Part-1: Basics

Welcome everyone to this series on vSphere virtual networking. This is going to be a long series due to the vast scope of configuration In this series, we will explore concepts related to vSphere virtual net possibilities in vSphere virtual networking. The reason of doing this series is basically to let everyone (specially beginners) understand … Continue reading Uncovering vSphere virtual networking Part-1: Basics

vSAN 6.x Architecture Components

We are going to discuss vSAN architecture components in this post. Generally, vSAN is easy to work with using management tools like vSphere client, Ruby Console or Web client and it simplifies administrative tasks greatly. However, it is important from troubleshooting point of view to know how things work under the hood. vSAN operations are … Continue reading vSAN 6.x Architecture Components

Cache concepts and cache techniques

The concept of the Cache memory has been around since long time. Cache memory is generally used to fill the performance gap between computing architecture and persistent storage. Persistent bulk storage units cannot keep up with the performance requirements that of Compute processing. Just take an example of RAM to understand performance gap of CPU … Continue reading Cache concepts and cache techniques

Lockdown Mode vSphere 6.0 and 6.5

In order to improve security of ESXi host which is being managed by vCenter server centrally, we enable lockdown mode on ESXi hosts.ESXi 5.x and prior:When Lockdown mode is enabled, only the vpxuser has authentication permissions. Other users cannot perform any operations directly on the ESXi host. Lockdown mode forces all operations to be performed … Continue reading Lockdown Mode vSphere 6.0 and 6.5

How to add, manage local users in ESXi host 6.x & 7.x?

In this post we will explore managing local users on ESXi host through CLI, GUI and also discuss role management in local ESXi host. The process is identical in ESXi 6.x as well as ESXi 7.x version. For all versions of ESXi, you can see the list of predefined users in the /etc/passwd file. Usually, you should manage … Continue reading How to add, manage local users in ESXi host 6.x & 7.x?