Beyond the "Nine Nines": Why Modern Mainframe Resilience Demands a Cloud-Driven Paradigm Shift
Executive Overview For decades, the enterprise mainframe has occupied a singular position in the corporate technology hierarchy: the untouchable bastion of reliability. Renowned for its fault-tolerant hardware, built-in redundancy, and instantaneous automatic recovery, the platform has long delivered what systems architects colloquially refer to as "nine nines" of availability—translating to a mere 31.56 milliseconds of…