一个存储有重要信息的高可靠数据中心必需要做到既能防止因设备故障或自然灾害带来的数据丢失,又能复原人为失误或恶意软件导致的数据改动,而且还能对应用提供不间断的数据服务,这对其设计者提出了严峻的要求。提出了一种基于iSCSI的廉价容灾系统,该系统通过多种数据保护技术实现了一套符合上述要求的数据容灾解决方案。
A data centre which stores important information must has the ability to avoid unexpected data loss because of device failure or natural disaster,restore invalid data change because of human mistake or malicious software and supply continuous data service to upper application.Such requests really make big troubles to the designers.An iSCSI—based inexpensive disaster-tolerant system which realizes a feasible scheme through multiple data protection technologies is design and well meets the given problems.