Using Serviceguard Extension for RAC, 5th Edition, June 2007

Introduction to Serviceguard Extension for RAC
Larger Clusters
Chapter 1 33
Larger Clusters
Serviceguard Extension for RAC supports clusters of up to 16 nodes. The
actual cluster size is limited by the type of storage and the type of volume
manager used.
Up to Four Nodes with SCSI Storage
You can configure up to four nodes using a shared F/W SCSI bus; for
more than 4 nodes, FibreChannel must be used. An example of a
four-node RAC cluster appears in the following figure.