How do you configure and maintain high availability clustering in Linux?
Steps involved to configure two node High Availability Cluster:
- Install and Configure the Apache webserver (httpd Packages) on both nodes.
- Enable the repo for High Availability Packages from ISO Image if needed or use public repos.
- Install High Availability Cluster on both nodes.
- Configure High Availability Cluster.
Which of the following is required in high availability cluster in Linux?
Most high-availability clusters will also need a form of shared storage or storage that can be accessed from multiple nodes. Shared storage provides the same application data to multiple nodes in the cluster. The data may be accessed either sequentially or simultaneously by an application running on the cluster.
What is the most common method of Linux clustering?
Beowulf clustering is the most common method of Linux clustering.
Which of the following is used in high availability cluster?
HA clusters usually use a heartbeat private network connection which is used to monitor the health and status of each node in the cluster.
What is pacemaker in Linux cluster?
Pacemaker is a high availability Cluster Resource Manager (CRM) that can be used to manage resources, and ensure that they remain available in the event of a node failure.
How is high availability cluster used in RHEL 7?
High-Availability is mainly used for databases, custom application, and also for file sharing. Fail-over is not just starting an application. It has some series of operations associated with it like, mounting filesystems, configuring networks and starting dependent applications. CentOS 7 / RHEL 7 supports Fail-over cluster using the pacemaker.
How to perform cluster maintenance in Red Hat?
Enabling ports for the High Availability Add-On 5. Configuring an active/passive Apache HTTP server in a Red Hat High Availability cluster 5.1. Configuring an LVM volume with an ext4 file system in a Pacemaker cluster 5.2.
How to configure fencing in a red hat high availability cluster?
Chapter 9. Configuring fencing in a Red Hat High Availability cluster This document describes the procedures you can use to configure, test, and manage the fence devices in a Red Hat High Availability cluster. A node that is unresponsive may still be accessing data.
What kind of storage is used in a high availability cluster?
All are running on VMware Workstation. Shared storage is one of the important resources in the high-availability cluster as it holds the data of a running application. All the nodes in a cluster will have access to shared storage for recent data. SAN storage is the most widely used shared storage in the production environment.