Installation guide

Global Network Block Device (GNBD) — An ancillary component of GFS/GFS2 that exports

block-level storage to Ethernet. This is an economical way to make block-level storage available

to GFS/GFS2.

Note

Only single site clusters are fully supported at this time. Clusters spread across multiple

physical locations are not formally supported. For more details and to discuss multi-site

clusters, please speak to your Red Hat sales or support representative.

For a lower level summary of Red Hat Cluster Suite components and optional software, refer to

Chapter 2, Red Hat Cluster Suite Component Summary.

Fig u re 1.1. R ed Hat Clu st er Su it e In tro du ct io n

Note

Figure 1.1, “ Red Hat Cluster Suite Introduction” includes GFS, CLVM, and GNBD, which are

components that are part of an optional package and not part of Red Hat Cluster Suite.

1.3. Clust er Infrast ruct ure

Red Hat Ent erprise Linux 5 Clust er Suit e Overview