Open source, scalable, high performance, you name it, Cassandra has it all. A NoSQL database designed to handle large amounts of structured data making it the perfect platform for a mission critical data.
During downtime, loss of data is unaffordable hence the durability of Cassandra is an important feature.
Cassandra has the capability to run on multiple machines and may run across geographically dispersed data centres.
Cassandra includes horizontal scaling along with the addition of more machines that have all or some of the data.
Multiple nodes have the reproduced version of the data as the data gets replicated automatically across data centers.