How to check for inactive cores in a solr multicore setup?

Hello, I am trying to figure out a way to detect inactive cores in a multicore setup. How is that possible? I queried the STATUS of a core through the CoreAdminHandler. Could anyone please tell me what the 'current' field means?? Eg : http://localhost:8080/solr/admin/cores?action=STATUS&core=2

Usage of Double quotes for single terms (camelcase) while querying

Hello Solr, Do we have to specify double quotes for a single term (if the term is a camelcase, eg, OrientalTradingCo) while querying. I am using apache-solr-3.3.0. For example the query : q=OrientalTradingCo&debugQuery=true gives the debugging response as --- OrientalTradingCo OrientalTradingC