Description

This course will allow you to understand the different types of Clusters under Linux and to implement a load balancing and high availability architecture.

Who is this training for ?

Experienced network and system administrators under Unix/Linux.

Training objectives

Training program

• Clusters and quality of service
  • Types of Clusters and objectives to achieve.
  • Problems and "trade off".
  • The "Service Level Agreement", at the heart of the Cluster .
• Data managment
  • Data storage types.
  • iSCSI and GNBD.
  • The logical volume manager.
  • The access file system competitor GFS.
  • Practical work Implementation of data export with GNBD.
• Virtualization with Xen
  • Introduction to virtualization.
  • The features of Xen.
  • Network and storage management with Xen.
  • Live migration of virtual machines and Xen hypervisor clustering.
  • Practical work Creation and deployment of Xen virtual machines with virt-manager and Kickstart which will be the high availability and load balancing cluster nodes.
• High availability with Cluster Manager
  • Configuration of Cluster nodes.
  • Managing a Cluster with Conga.
  • Implementing "fencing" and agents.
  • Practical work Installation and configuration of Cluster Manager on Cluster nodes with Conga.
  • Configuration of fencing of Cluster nodes with the fencing agent for virtual machines.
• Cluster resource management
  • Network, data and processes.
  • The resource manager: rgmanager.
  • Mechanisms and failover criteria.
  • Reflexes and Cluster administration procedures.
  • Resource monitoring.
  • Practical work Implementation of a high availability web server with the Cluster Manager resource manager and failover tests.
• Load balancing with LVS
  • Introduction to the concept of load balancing.
  • How LVS works: Linux Virtual Server.
  • Load balancing algorithms.
  • Hands-on work Modifying hypervisors and virtual machines to adapt to the network topology required for load balancing.
• Implementation of distribution with Piranha
  • Redundancy of LVS.
  • Creation of virtual services.
  • Practical work Implementation of a web service in load balancing.
  • Load sharing and LVS toggle tests.