Recent Posts

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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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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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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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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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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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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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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Puppet – Augeas – Edit System configuration files

Puppet Augeas

This article is going to demonstrates that editing/updating files on puppet agent nodes. In the previous article , we have seen that how to copy the static files from “module/files” directory(Puppet Server) to puppet agent nodes.  But sometimes , you can’t replace the complete file and you may need to edit specific line on that. For example you may just want to …

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Puppet – Manifest examples – Managing FILES – SERVICES

Puppet Manifest - Manage service files directories

This article is going to brief about creating new files , directories, changing the file permission, installing package and managing the services using puppet server on puppet agent nodes. For an example, if you want to configure the ntp client on 100’s of servers , you could simply write a small manifest on puppet server to achieve this task. This …

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