This article will talk about managing the Zone Cluster on oracle Solaris. The clzonecluster command supports all zone cluster administrative activity, from creation through modification and control to final destruction. The clzonecluster command supports single point of administration, which means that the command can be executed from any node and operates across the entire cluster. […]
Sun Cluster – Configuring Resource Group in Zone 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 […]
Sun Cluster – How to Configure Zone Cluster on Solaris ?
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 […]
Sun Cluster – Zone Cluster on Oracle Solaris – Overview
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 […]
VMturbo 5.5 – Manage All Hypervisors in One Umbrella
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 […]
How to break GRUB / Recover Root password on VCSA 6.0 ?
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 […]
VMware Integrated Openstack – Overview – Part 1
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, […]
Puppet – Puppet Forge Modules – Overview
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 […]
Puppet – How to Classify the Node types ?
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 […]
Puppet – Augeas – Edit System configuration files
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 […]