Saturday, April 11, 2020

Babin Lonston

Migrating multi-writer VMware VM’s from Island cluster to vSAN cluster

Migrating Multi-writer disks of VMware VM's from Island Cluster to vSAN cluster with and without the downtime of Production.

Create a Pacemaker Cluster Resources and Resources group

Pacemaker Resources and groups are which need to be highly available across multiple nodes in a cluster to provide high-availability for any services.

How to add additional nodes to the Pacemaker Cluster

How to add additional nodes to the existing pacemaker Linux clusters. By adding nodes we can increase the resources of a cluster.

How to Manage Pacemaker Linux cluster from Web GUI

How to manage a Pacemaker Linux Cluster from web graphical interface (Pacemaker Web UI) by creating a new cluster or by adding an existing cluster.

Install and configure High Availability Linux Cluster with Pacemaker on CentOS 7.6

The Pacemaker is a high-availability cluster resource manager it will run on all the hosts which we suppose to use in the cluster to make sure our services up and running to reduce the downtime.

Migrating Logical Volumes in Logical Volume Management

Migrating Logical Volume by moving the extents from a PV to another PV when a faulty disk or the size of the disk need to be larger than the current one.

Striped Logical Volume in Logical volume management (LVM)

How to create Striped Logical Volumes in Logical Volume Management to get good I/O performance by balancing the data written to disks.

Step by step Oracle Linux 8 Installation guide with screenshots

Step by step guide to install Oracle Linux 8 with the screenshot will explain how to perform a clean installation from scratch on Virtual or Physical servers.

Shrink a Volume Group in Logical Volume Management (LVM2)

Shrink a Volume Group in logical volume management will be performed by sysadmins when the requirement in place to reduce the no of disks from a VG.

How to Extend and Reduce LVM Logical Volume in Linux

How to extend and reduce LVM logical volume management in Linux Operating Systems.

About Me

Overall 14+ Years of experience in the IT field, currently working as a Senior Linux administration with Virtualization & Cloud. Being numismatist for a long time.

Latest News

Recover from Starting Switch Root or corrupted Glibc

While starting the server it will not move forward after "Starting Switch Root". Step by Step let's see how to fix this issue.

Recover from chmod 777 permission on a root filesystem

How to Recover from accidentally running chmod -R 777 / on any RPM-based Linux Operating systems.

Linux Sudo to run Privileged Commands

Allow normal users to run any privileged commands by escalating to Sudo, by configuring Linux Sudo on any Linux os normal users are allowed to get root access.

Register a Linux client with Foreman

How to subscribe a client with our content management server foreman/Katello/Satellite.

Install Foreman Katello Patch Management on CentOS 7

Foreman with katello patch management is a Content Management System provides a lot of features such as provisioning, Inventory, Patch management and much more.