solr multi-node

[Antonello Mangone]

Hi to every one I have a question and I hope someone can help me.
I know that mission critical reliability can be implemented with Lucene/Solr
by using multi-node configurations, and redundant architectures, but I
haven't found documentation on how to do it.
Can someone help me to find a link to read how to do it ?
Thank you all in advance ...