@libertum_V кстати, ты не прав. Вот как отвечает один из разрабов на этот вопрос:
...Since we do not introduce sharding all data set is stored on each masternode. But as guys already pointed we can keep L2 fees relatively low due masternodes are getting L1 rewards as well. So the more activity we have in network the higher price of dash suppose to be and masternodes win anyways.
BTW, we use MongoDB only for document secondary indices. All data mostly in merk (merkalized key-value storage)