Page RecordManager Header NbTree PageSize FirstFreePage LastFreePage BTree Header NbElems Revision RootPageOffset BTreePageSize BTree name xyz... KeySerializer xyz... ValueSerializer xyz... NextBtreeHeader Node Revision Value[0] ... Leaf Revision ... Key[0] Value[1] Key[1] Value[nbElems - 1] Key[nbElems - 1] Value[0] Key[0] Value[1] Key[1] Value[nbElems - 1] Key[nbElems - 1] Value[nbElems] NbElems NbElems DataSize DataSize