Red Hat High Availability Clustering – RH436

Design and deploy a high availability cluster.

Red Hat® High Availability Clustering (RH436) provides intensive, hands-on experience with the Pacemaker component of the Red Hat Enterprise Linux High-Availability Add-On, as well as cluster storage components from the Resilient Storage Add-On, including Cluster Logical Volume Manager (CLVM), Red Hat Global File System 2 (GFS2), and Device-Mapper Multipath.

Što ćete naučiti

  • Improve application uptime by using high availability clustering
  • Manage storage in an high availability environment using iSCSI initiators, HA-LVM or CLVM as appropriate, and GFS2 cluster file systems
  • Implement strategies to identify single points of failure in high availability clusters and eliminate them

Kome je namijenjeno

Senior Linux system administrators responsible for maximizing resiliency through high-availability clustering services and using fault-tolerant shared storage technologies.


Red Hat Certified System Administrator (RHCSA) certification or an equivalent level of knowledge is highly recommended.

Nastavni plan

  • Clusters and storage
    • Get an overview of storage and cluster technologies.
  • Create high-availability clusters
    • Review and create the architecture of Pacemaker-based high-availability clusters.
  • Nodes and quorum
    • Review cluster node membership and how quorum is used to control clusters.
  • Fencing
    • Understand fencing and fencing configuration.
  • Resource groups
    • Create and configure simple resource groups to provide high-availability services to clients.
  • Troubleshoot high-availability clusters
    • Identify and troubleshoot cluster problems.
  • Complex resource groups
    • Control complex resource groups by using constraints.
  • Two-node clusters
    • Identify and work around two-node clusters issues.
  • ISCSI initiators
    • Manage iSCSI initiators for access to shared storage.
  • Multipath Storage
    • Configure redundant storage access.
  • Logical volume manager (LVM) clusters
    • Manage clustered LV.
  • Global File System 2
    • Create symmetric shared file systems.
  • Eliminate single points of failure
    • Eliminate single points of failure to increase service availability.
  • Comprehensive review
    • Set up high-availability services and storage.

Za što vas priprema?

  • Red Hat Certified Specialist in High Availability Clustering exam (EX436)