How to Make CLUSTERING RHEL 7

1.1. CLUSTER SOFTWARE INSTALLATION 1.2. CLUSTER CREATION 1.3. FENCING CONFIGURATION This chapter describes the procedure for creating a Red Hat High Availability two-node cluster using pcs. After you have created a cluster, you can configure the resources and resource groups that you require. Configuring the [Read More]

LVM Thing Provision

The concept of LVM Thin Provision is to create a new size of POOL other than Volume Group (VG) from where you can create very much larger size of Logical volume partition. Here are few simple steps are given ============================ We can assume that we [Read More]

How to use vmstat command in linux

vmstat (virtual memory statistic) which is generally used for system monitoring purpose [root@puppetmaster ~]# vmstat procs ———–memory———- —swap– —–io—- –system– —–cpu—– r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 265492 29852 355740 0 [Read More]

How to enable bash-completion in ubuntu 14.04

1. You need to reinstall bash-completion by using below command learning@learning:~/Desktop$ sudo apt-get install –reinstall bash-completion 2. Now you need to write it in .bashrc file like below given at very last line learning@learning:~/Desktop$ sudo vim /root/.bashrc if [ -f /etc/bash_completion ] && ! shopt [Read More]