"The redundancy operation solutions for the portfolio from the former social security establishment are also hosted by XX, he says. The same applies to substantial parts of the backup solutions and data storage".
Backup is a copy of data at a given time, used in the event of a disaster recovery or a simple turn back the clock thing (someone deleted the wrong file). Reserveløsning is a full-featured solution designed to provide essential services in the event of a total failure of the main system, to operate until the main system comes back on line.
These solutions are frequently called redundant solutions, a term which is technically and logically objectionable. Redundant in lay terms means surplus, unnecessary, aged beyond its useful life.