Recent Posts

April, 2016

  • 11 April

    Sun Cluster – Configuring Resource Group in Zone Cluster

    Multiple-tier consolidation - Sun cluster

    This article will walk you through how to configure a resource group in zone cluster. Unlike traditional cluster, resource group and cluster resources are should be created inside the non-global zone. The required physical or logical resources need to be pinned from the global zone using “clzonecluster”  or “clzc” command.  In this article, we will configure HA filesystem and IP …

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  • 11 April

    Sun Cluster – How to Configure Zone Cluster on Solaris ?

    Zone uses the global zone physical resoruces

    This article will walk you through the zone cluster deployment on oracle Solaris. The zone cluster consists of a set of zones, where each zone represents a virtual node. Each zone of a zone cluster is configured on a separate machine. As such, the upper bound on the number of virtual nodes in a zone cluster is limited to the number …

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  • 11 April

    Sun Cluster – Zone Cluster on Oracle Solaris – Overview

    zone cluster on global cluster

    This article explains about  zone cluster. Zone cluster is created on oracle Solaris hosts using sun cluster aka Oracle Solaris cluster. In Most of the deployments , we might have seen the failover zones (HA Zones) using sun cluster or Veritas cluster (VCS) on Solaris. Comparatively , zone clusters are very less in the industry but used in some of …

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  • 9 April

    VMturbo 5.5 – Manage All Hypervisors in One Umbrella

    VMturbo 5.5 - Manage All Stacks

    VMturbo operation manager is not just enterprise monitoring software . It controls the virtualization infrastructure by drilling down to the application level and takes real-time decisions. VMturbo controls all the IT stacks like System hardware, Hypervisor, Virtual Machine , Operating System, OS container and applications. VMturbo 5.5 also supports IBM PowerVM along with VMware vSphere , Redhat’s RHEV , Hyper-V Xen-Server virtualization. …

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  • 2 April

    How to break GRUB / Recover Root password on VCSA 6.0 ?

    Successful login

    This article will provide the step by step screenshot to recover the VCSA 6.0’s  root password and breaking the GRUB password. VMware vCenter Appliance(VCSA) is a pre-configured Linux VM based on SUSE Linux. If you forget the root password of the appliance, you need to recover the root password like other Linux Operating systems. Recovering root password is very simple …

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March, 2016

  • 10 March

    VMware Integrated Openstack – Overview – Part 1

    What is the best technology to pair with openstack

    This articles provides the overview of VMware Integrated Openstack (VIO). Openstack is an opensource framework for creating an IAAS (Infrastructure as a service) cloud. It provides a cloud style API to simplify the consumption of virtual infrastructure technologies. Openstack doesn’t not provide any virtual technologies  to create the OS instances.  It always require hypervisors like KVM, XEN and ESXi. Openstack has …

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February, 2016

  • 21 February

    Puppet – Puppet Forge Modules – Overview

    Puppet Forge Modules

    Puppet forge is a module repository for  Puppet Open Source and Puppet Enterprise IT automation software. These modules are written by puppet community members and puppet reviews the module before publishing it. Puppet also supports many of modules in this repository.  Why do we require pre-built puppet modules ?  To simply system administrator work and reduce the coding effort. These …

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  • 20 February

    Puppet – How to Classify the Node types ?

    Puppet Classying OS variant

    We need to classify the nodes  when you have to perform similar operation on different OS variant. For an example, If you want to install Apache package on Linux systems, you need to use package name as “httpd” on Redhat variants  and “apache2” on Debian variants.  In such a cases, you need to tweak your module to detect the OS family …

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