Installation guide

Fibre Channel switch — A Fibre Channel switch provides access to Fibre Channel storage. Other
options are available for storage according to the type of storage interface; for example, iSCSI or
GNBD. A Fibre Channel switch can be configured to perform fencing.
Storage — Some type of storage is required for a cluster. The type required depends on the
purpose of the cluster.
Fig u re 1.1. Red Hat Clu st er H ard ware O verview
1.1.2. Inst alling Red Hat Clust er soft ware
To install Red Hat Cluster software, you must have entitlements for the software. If you are using the
Co n g a configuration GUI, you can let it install the cluster software. If you are using other tools to
configure the cluster, secure and install the software as you would with Red Hat Enterprise Linux
software.
1.1 .2 .1 . Upgrading t he Clust e r So ft ware
It is possible to upgrade the cluster software on a given minor release of Red Hat Enterprise Linux
without taking the cluster out of production. Doing so requires disabling the cluster software on one
host at a time, upgrading the software, and restarting the cluster software on that host.
⁠Chapt er 1 . Red Hat Clust er Co nfigurat ion and Management Overview
9