The server array for larger deployments comes with a Teramind built-in load-balancer. Database redundancy is provided and maintained by us or by the customer (we'd set up a replica). The DB replica can be in a DR zone. Alternatively you can use VMWare's facilities to replicate/maintain mirrors of your Teramind deployment elsewhere. Additionally, Teramind agent will record data locally in case there's a connectivity/server issue. No data is lost when it recovers.