elasticsearch/docs/reference/elasticsearch-plugins/store-plugins.md

mapped_pages
https://www.elastic.co/guide/en/elasticsearch/plugins/current/store.html

Store plugins [store]

Store plugins offer alternatives to default Lucene stores.

Core store plugins [_core_store_plugins]

The core store plugins are:

Store SMB

The Store SMB plugin works around for a bug in Windows SMB and Java on windows.