If you want to know specific to OAK please refer to http://docs.adobe.com/docs/en/aem/6-0/deploy/upgrade/introduction-to-oak.html ,specific to storage elements , please refer to http://docs.adobe.com/docs/en/aem/6-0/deploy/upgrade/microkernels-in-aem-6-0.html and specifc to indexing, please refer t...