Percona XtraDB Cluster – A Drop-in-place Clustering Solution for MySQL

Emphasis on clustering solutions comes up quite a lot when talking to customers about High Availability. The reason is because clustering is supposed to provide an easier solution for maintaining high availability and so that you do not have to rely on other tools and techniques outside of the database server. I thought it would be good to share the gist of many of my discussions around clustering, in the form of a blog post. So here I will be

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On LVM: How to extend Volume Groups and Logical Volumes

In the previous part of this article, we had a look at how to configure LVM, and we had successfully setup a Volume Group and two Logical Volumes. Now we are going to have a look at extending the group and volumes.