техническая оснащенность для сохранения доступа к данным(Availability and durability are two very different aspects of data accessibility. <...> Historically, availability has been achieved through hardware redundancy so that if any component fails, access to data will prevail. Durability refers to long-term data protection, <...> it is concerned with data redundancy so that data is never lost or compromised. Wakeful dormouse)
