Recent Posts

Redhat Enterprise virtualization- Installing RHEV-H

To install Redhat enterprise virtualization hypervisor(RHEV-H), You need a hardware with “virtualization Technology”(VT-X) enabled processors.Once you have such a hardware ,then you can start installing RHEV-H on it. You need to download the bootable “Redhat enterprise virtualization hypervisor” ISO image from Redhat website  with valid subscription. If you do not have one , Redhat is providing 60 days trail for RHEV. Just sign …

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Redhat Enterprise Virtualization – Overview

Red Hat had played vital role on Linux revolution and they proved that Linux can be used on the enterprise computing. Today Red Hat is  the world’s largest distributor of Linux. To reduce the infrastructure costs , all the companies are behind the virtualization. Companies like VMware,Citrix and Oracle are offerings enterprise virtualization products to accommodate different virtual guests. What about Redhat …

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VMware vCloud Director Build From Scratch – 2

In this article ,we will see the remaining vCloud director’s quick setup which we have left out in the last article.We have  already seen  that how to attach the vCloud director to VMware vCenter server and creating the provider vDC. Here we will be seeing the external networking part and creating the new organization. once you have created the organization, …

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VMware vCloud Director Build From Scratch – 1

In this VMware vCloud Director article series, this article is going to demonstrate that how to attach the vCloud director to VMware vCenter Server and how to create a provider virtual Data-center. vCloud director can’t manage the system resources or virtual resources directly.It requires VMware vCenter server in the back-end to get the required  resources using vCloud API. Once you …

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What is VMware vCloud ? How it works ?

In IT infrastructure market, Cloud is the trending topic and technology from last few years. Most of the hardware vendors and operating systems developers have already started working to integrate the cloud technology on existing operating systems. For an example , oracle had integrated the openstack cloud software on their oracle Solaris operating systems.Let’s have Q&A on cloud topic to …

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Shellshock bug – vulnerability on Bash shell

Millions of computers are using bash shell (command interpreter ). New security flaw has been found on bash(Bash Code Injection Vulnerability (CVE-2014-6271) and it allows attackers  can take the system control remotely. Heartbleed wave was just over on last april (Openssl vulnerability ).Is Shell-shock hurts more than Heartbleed ? Off-course  Yes. Heartbleed was all about sniffing the system memory but Shellshock  has opened the …

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VMware Hardware Compatibility Guide

Are you planning to buy hardware to setup the VMware vSphere/vCloud  environment ? We need to choose the hardware very carefully since most of the virtualization  features are depends on the server hardware. Technology is growing very rapidly and hardware vendors may push the hardware without those virtualization  features. For an example, if you buy a hardware with processor which …

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Unable to Detach vCenter Server from vCloud

How to detach the vCenter Server from vCloud Director ? Its very simple .If you want to detach the vCenter server completely from vCloud, just remove the Cloud Resources and detach the vCenter server from vCloud director web portal. But sometimes, we may forget to clean up the Cloud resources properly and that will create a problem when you tried to detach vCenter …

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Sun ZFS Storage appliance – Administration

This article explains how to create ISCSI targets, LUNS and filesystem  from scratch in ZFS storage appliance which is the common storage on oracle supercluster. ISCSI protocol works in server-client model where ISCSI target will act as a server and initiator will act as a client. This communication happens through IP network. In Oracle supercluster, we have infiniband network which provides …

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Oracle SuperCluster – ZFS storage appliance Simulator

From last  few weeks , i am  working with Oracle Super Cluster T4-4 systems. Initially i felt  quite difficult but now i am bit  familiar  with this engineering systems. In Oracle Super Cluster, ZFS storage appliance is one of the main components which provides the shared storage for in built SPARC systems. In the Half Rack – Oracle Super Cluster, …

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