Our assumptions is we can recover cost of equipment within warranty period (Most of the components have 3 yrs warranty) Also, most of data redundancy is handled

Our assumptions is we can recover cost of equipment within warranty period (Most of the components have 3 yrs warranty) Also, most of data redundancy is handled at software level, I feel thats the best usage of FOSS like Hadoop/Cassandra. We can avoid expensive high end hardware and build system with commodity hardware components and rely more on cloud technology. You might still be right, but hope things work out.