Author Archives: Alex Hunt

About Alex Hunt

Hi All I am Manish Kumar Jha aka Alex Hunt. I am currently working in VMware Software India Pvt Ltd as Operations System Engineer (vCloud Air Operations). I have around 5 Years of IT experience and have exposure on VMware vSphere, vCloud Director, RHEL and modern data center technologies like Cisco UCS and Cisco Nexus 1000v and NSX. If you find any post informational to you please press like and share it across social media and leave your comments if you want to discuss further on any post. Disclaimer: All the information on this website is published in good faith and for general information purpose only. I don’t make any warranties about the completeness, reliability and accuracy of this information. Any action you take upon the information you find on this blog is strictly at your own risk. The Views and opinions published on this blog are my own and not the opinions of my employer or any of the vendors of the product discussed.

Bye Bye to free Blog. Say hello to my new website

Dear friends and Blog Readers, I have started my new website http://www.vstellar.com. All new posts will now be published to my new website. This blog will be running up for a few days until I am confirmed that migration of … Continue reading

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Learning Apache Cassandra-Part-4-Adding Node To Cassandra Cluster

In last post of this series we learnt how to install cassandra on Rhel 6. In this post we will look into additional configuration parameter that is needed to configure in order to facilitate other nodes to join the cassandra … Continue reading

Posted in Vmware | 1 Comment

Learning Apache Cassandra-Part-3-Installing Cassandra on RHEL6

In last 2 posts of this series we learnt about Cassandra architecture and understood the cassandra Read/Write process. If you have missed earlier posts of this series then you can read them from below links: 1:Introduction to cassandra 2: Understanding Cassandra … Continue reading

Posted in Vmware | 2 Comments

Learning Apache Cassandra-Part-2:Understanding Cassandra Read/Write Mechanism

In first post of this series we discussed about what is cassandra, what are the benefits of using cassandra. We also discussed a little bit about from where cassandra came and finally we looked at the architecture of cassandra and discussed some … Continue reading

Posted in Vmware | 3 Comments

Learning Apache Cassandra-Part-1:Introduction

Cassandra was very new to me when I joined the vCloud Air operations team back in 2015. Over last 1.5 years I have got a bit of understanding about cassandra now and it provoked me to learn this wonderful database … Continue reading

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Find Snapshot Creation Date of a vCloud Director VM

Last month while working on a customer ticket, I came across a request from customer where he wanted to know snapshot creation date for one of his VM as he can not find this detail from vCD UI. To confirm … Continue reading

Posted in vCloud Director, Vmware | 1 Comment

Exploring vSphere 6.5 API-Part 3: Esxi Host

In last 2 post of this series, we learn about digging out info about datacenter,cluster and virtual machines. In this post we will learn about API options available for Esxi hosts. If you have missed earlier posts of this series, … Continue reading

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Storage Migrate a vCloud Director VM using Rest API

If you are using vCloud Director in your environment and if you have ever tried doing a Storage vMotion of a VM from vSphere directly, you will notice a warning saying that its not recommended to modify the entity since … Continue reading

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Exploring vSphere 6.5 API-Part 2: Virtual Machines

In last post of this series we looked into some basic Rest API’s to fetch info about datacenter and cluster. In this post we will explore API options for virtual machines. Out of all the components like host, cluster etc, max … Continue reading

Posted in vSphere 6 | 1 Comment

Exploring vSphere 6.5 API-Part 1: Datacenter & Cluster

I am using API for quite a bit now in our prod environment which is based on vCloud Director and many times API’s had proved a handy way to troubleshoot issues where GUI was not providing a way to proceed. … Continue reading

Posted in Vmware | 2 Comments

vCloud Air: Access Your Linux Server Over SSH From Outside

This week while working in my lab, I came across a situation where I wanted to run few commands on my linux server which is running in vCloud Air. To access my lab from outside I have configured a Windows … Continue reading

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Learning vSphere 6.5-Part-10-VCHA failover testing

Last 2 post of this series were revolving around the high availability feature for vCenter that is introduced in vSphere 6.5 and we discussed the VCHA architecture and also learnt how to configure VCHA. In this post we will be … Continue reading

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Learning vSphere 6.5-Part-9-Configuring vCenter Server High Availability (VCHA)

In last post of this series we discussed about the High Availability feature for vCenter 6.5 and saw the architecture of VCHA and how it works. In this post we will go ahead and actually configures that in lab. If … Continue reading

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Learning vSphere 6.5-Part-8-Understanding vCenter Server High Availability (VCHA)

In last post of this series learned how to External PSC for vCSA. In this post of vSphere 6.5 series, we will look into one of the best feature which is included in v 6.5 i.e high availability for vCenter Server. … Continue reading

Posted in Vmware | 4 Comments

Learning vSphere 6.5-Part-7-Deploying External PSC for vCSA

This is part 7 of the vSphere 6.5 learning series and in last part of this series we learned how to install vCSA with embedded PSC and touched on some basic settings which is needed to be done post deployment. … Continue reading

Posted in Vmware | 3 Comments

Learning vSphere 6.5-Part-6-Deploying vCSA with embedded PSC

In last post of this series we learnt how to install vCenter with embedded PSC on windows server. In this post we will learn about deploying and configuring vCSA with embedded PSC. If you have missed earlier post of this … Continue reading

Posted in Vmware | 4 Comments

Learning NSX-Part-11-Replacing NSX default SSL Certficates with CA Signed Certificates

I am a big advocate of not using the default SSL certs on any VMware products and I prefer using Signed certs from my CA server on my lab components. I have my CA server running in Windows Server 2012. … Continue reading

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Learning NSX-Part-10-Upgrade NSX Manager From 6.2 to 6.2.4

This week I was trying my hands on upgrading NSX to version 6.2.4 which was released earlier this year in August. I had no experience earlier with upgrading NSX manager and associated components, so I spent a lot of time … Continue reading

Posted in NSX | 1 Comment

vExpert 2017 Applications are Now Open

Good news for fellow vExperts. Application for vExpert 2017 program is now open. Deadline to apply for the 2017 vExpert is 16th December 2016. The vExpert 2017 announcement will be on February 8th 2017. If you are a current vExpert … Continue reading

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Learning vSphere 6.5-Part-5-Installing vCenter Server on Windows

Till now in this series we have discussed a lot of theory about vCenter Server/VCSA, deployment type etc and also we looked into system requirements for vCenter Server and PSC installation. Now its lab time where we will see the … Continue reading

Posted in Vmware | 5 Comments

Virtual Machine Reset By HA-VMware Tools Heartbeat failure

Today while investigating one production issue, I came across an incident where a virtual machine restart was performed by HA. Navigating through task and events for the VM in vCenter, I was seeing message similar to “This virtual machine reset … Continue reading

Posted in Vmware | 1 Comment

Learning vSphere 6.5-Part-4-System Requirements for Installing vCenter Server

In last post of this series we discussed about various deployment models available for deploying vCenter Server and PSC. In this post we will look into minimum system requirements  that must be met for installing windows based vcenter Server. If … Continue reading

Posted in Vmware | 7 Comments

Learning vSphere 6.5-Part-3-vCenter Server and PSC Deployment Types

In last post of this series we had an overview of VCSA and touched a little bit on what are the new features that are included in VCSA v6.5. In this post we will discuss about available deployment models for … Continue reading

Posted in Vmware | 8 Comments

Learning vSphere 6.5-Part-2-VCSA Overview

In first post of this series Installing and Configuring Esxi we looked into Installation of Esxi 6.5 and as I stated in that post installation method has not changed at all. In this post we will look into overview of VCSA and … Continue reading

Posted in Vmware | 9 Comments

Learning vSphere 6.5-Part-1-Installing and Configuring Esxi

We all know that vSphere 6.5 was announced by VMware 2 weeks back in VMworld Barcelona. With the release of 6.5 version of vSphere, VMware has done some fantastic work with HA and DRS enhancements. Several folks wrote blogs on the … Continue reading

Posted in Vmware | 16 Comments

vCloud Air Data Protection:Part-3: Restore a Deleted VM From Backup

In last post of this series Virtual Machine Backup we had a look into how to configure Data Protection Service on a Virtual Datacenter and how to take backup of a virtual machine. In this post we will learn how to recover … Continue reading

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vCloud Air Data Protection:Part-2: Virtual Machine Backup

In last post of this series Introduction to DPS we had a look on what DPS is and how it works. We also discussed the benefits which a customer can get via DPS for his critical workloads running in vCloud Air. In … Continue reading

Posted in vCloud Air | 1 Comment

vCloud Air Data Protection:Part-1:Introduction

Everybody knows how important is to backup your critical workloads in your infrastructure. The need to protect workloads is the same whether it’s onsite or in the cloud.vCloud Air Data Protection services ensures business continuity for the workloads which are … Continue reading

Posted in vCloud Air | 2 Comments

Troubleshooting Edge Gateway High Availability

Yesterday I was working on Edge Services Gateway in my Lab and deployed the edge gateway in HA mode. Soon after the deployment when I checked the HA status from vCenter, it reported status as Down To counter any UI … Continue reading

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Learning NSX-Part-9-Edge Services Gateway

In last 2 post of the series we discussed about Distributed Logical Router. Moving forward in NSX learning series, we will look into what is Edge Service Gateway and will discuss on when to use edge gateway. We will look … Continue reading

Posted in NSX | 1 Comment