This is a very important question. The system uses the energy-independent memory in different technologies - the DataFlash memory is used for the storage of data about users and key access levels, this Flash memory essentially differs from the USB flash drives known to everybody. This memory type has a microscopic size of pages with guaranteed recording quality. Such speciality helps to change the data of a particular user, without serious consequences and without a need to overwrite the remaining data, thus helping not to worry about limitations related to the number of cycles of rewriting in the Flash technology known to everybody.
Special ferromagnetic memory, with an unlimited number of cycles of rewriting, is used for the intermediate storage of events. Thus, we guarantee problem-free system functioning at any load within the entire life time.