The New SolrCloud: Overview by Rafał Kuć.
From the post:
Just the other day we wrote about Sensei, the new distributed, real-time full-text search database built on top of Lucene and here we are again writing about another “new” distributed, real-time, full-text search server also built on top of Lucene: SolrCloud.
In this post we’ll share some interesting SolrCloud bits and pieces that matter mostly to those working with large data and query volumes, but that all search lovers should find really interesting, too. If you have any questions about what we wrote (or did not write!) in this post, please leave a comment – we’re good at following up to comments! Or just ask @sematext!
Please note that functionality described in this post is now part of trunk in Lucene and Solr SVN repository. This means that it will be available when Lucene and Solr 4.0 are released, but you can also use trunk version just like we did, if you don’t mind living on the bleeding edge.
A good overview and one that could be useful with semi-technical management types.
If you need more details, see: SolrCloud wiki.