Problem and Opportunity

摘要

A minute of service downtime in telecommunications and networking systems can incur monetary losses averaging $13,000. To minimize costly downtime, the highly available systems used in these networks employ redundant hardware and availability management software. However, highly available hardware alone isn't sufficient, because application continuity, even in the midst of the automatic activation of spare hardware, requires that business, operation, and application data remain accessible and consistent. Without proper management of data, businesses fail and systems cease service regardless of other disaster prevention strategies that might be in place. Therefore, complete and successful availability solutions include robust data management strategies using highly available, atomic, consistent, isolated, and durable (ACID) transactional database servers and redundant, distributed data storage technologies.