Installation guide

Fig u re 1.18. T hree- Tier LVS T op o lo g y

This topology is suited well for busy FTP servers, where accessible data is stored on a central, highly

available server and accessed by each real server via an exported NFS directory or Samba share.

This topology is also recommended for websites that access a central, high-availability database for

transactions. Additionally, using an active-active configuration with a Red Hat cluster, you can

configure one high-availability cluster to serve both of these roles simultaneously.

1.8.3. Rout ing Met hods

You can use Network Address Translation (NAT) routing or direct routing with LVS. The following

sections briefly describe NAT routing and direct routing with LVS.

1.8 .3.1 . NAT Ro ut ing

⁠Chapt er 1 . Red Hat Clust er Suit e Overview