提高系统的可用性，即通过提供冗余进程或硬件组件，确保在发生故障时保持某个级别的服务连续性。
Increase the system's availability by providing redundant processes or hardware components that can ensure some level of continuity of service in case of failures.
万一软件或硬件发生故障，一个高可用性解决方案保证系统自动恢复。
A high availability solution guarantees that a system will automatically recover in the event of a software or hardware failure.
高可用性系统将软件和工业标准硬件相结合，在系统、组件或应用程序发生故障时快速恢复来使停机时间最小化。
High availability systems combine software with industry-standard hardware to minimize downtime by quickly restoring services when a system, component, or application fails.
简言之，在系统设计中冗余是提高可用性一个常用技术，代价是增加额外硬件(和软件)。
To make a long story short, redundancy in systems design is a common technique to increase availability at the cost of additional hardware (and software).
Hyperic的核心产品——Hyperic HQ——提供了硬件和操作系统、虚机、数据库及应用服务器的可用性监测，其定位于Web基础架构之上。
Their core product, Hyperic HQ, provides availability monitoring for hardware and operating systems, virtual machines, databases and application servers, and is targeted at web infrastructure.
最后，使用全系统复制，就不能利用高可用性环境的优势来缩短操作系统升级导致的中断时间或减少毁灭性硬件维护。
Finally, with full system replication, you can't take advantage of the high availability environment to reduce OS upgrade outages, or for less disruptive hardware maintenance.
该嵌入式系统硬件测试平台可以根据实际需求测试硬器件的功能完整性与可用性，达到故障定位，单板测试的目的。
This test platform can be used to test functional integrity and availability of the hardware according to demands and achieve the purpose of fault location and single-board testing.
微软、Sun微系统，以及其它主导硬件和软件流的公司提供有集群包，并保证提供可扩展性和可用性。
Microsoft, Sun Microsystems, and other leading hardware and software companies offer clustering packages that are said to offer scalability as well as availability.
微软、Sun微系统，以及其它主导硬件和软件流的公司提供有集群包，并保证提供可扩展性和可用性。
Microsoft, Sun Microsystems, and other leading hardware and software companies offer clustering packages that are said to offer scalability as well as availability.
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