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Managing Physical and Logical Volumes

Contents

Introduction Create Logical Volumes Delete Logical Volumes

Introduction

The following article presents an overview of the commands used to manage physical and logical volumes for use with Logical Volume Manager (LVM) in Linux.

Before considering the various commands for LVM, lets first look at just what is meant by some of the terminology […]

RedHat Cluster howto

Introduction

Here I wrote up a little tutorial how to configure a standard RHEL cluster. Configuring a RHEL cluster is quite easy but documentation is sparse and not well organized. We will configure a 4 nodes cluster with shared storage and Heatbeat over a different NIC (not the main data link).

Cluster configuration […]

Red Hat web server configuration for Mod_jk

Red Hat web server configuration for Mod_jk In order to start the EWS for Mod_jk Step 1: First extract the Zip file go to the folder C:\RHATews-1.0.2-windows32-i386\Red Hat\Enterprise Web Server\etc\httpd\conf Step 2 : Rename the File httpd.conf.in to httpd.conf Step 3 : Change the Default Listen Listen 127.0.0.1:80 to Listen *:80 Step 4 : Change […]

Three Tomcat memory overflow solution

Tomcat memory overflow reasons

Bad tomcat memory settings in a production environment is prone to memory overflow. Cause memory overflow is not the same, of course, not the same approach.Here is a summary of the usually encountered and related information. The common general there will be the following three conditions:1.OutOfMemoryError: Java heap space2.OutOfMemoryError: PermGen space3.OutOfMemoryError: […]