Our high end SQL server cluster is maxed out, how else to expand? Will it help to move tab

Our high end SQL server cluster is maxed out, how else to expand? Will it
help to move tables off of the cluster onto other clusters or will that just
create processing bottleneck on the cluster running SQL server?
I would first analyze the sql server for bottlenecks. Most of the problems
can be attributed to bad design, poor i/o design , indexing. Have all these
been checked?
Jim
"Daniel" <softwareengineer98037@.yahoo.com> wrote in message
news:%235$vpBwyHHA.3916@.TK2MSFTNGP02.phx.gbl...
> Our high end SQL server cluster is maxed out, how else to expand? Will it
> help to move tables off of the cluster onto other clusters or will that
> just create processing bottleneck on the cluster running SQL server?
>