Need to know where to start with gfs2

Hi,

We've been asked to create a shared filesystem between 2-3 servers and NFS is too slow. I started looking at gfs2 but we have no experience working with Red Hat Clusters and there is a ton of documentation out there. Can anyone point me to a doc to help me get started that would allow me to set up a shared filesystem between these boxes? They are on Red Hat 6.4. Thanks.

Mary Kay