冗余备份

基于ForCES的控制平面冗余备份的研究与实现

Research and Implementation of Control Plane Redundancy Based on ForCES

将ForCES控制平面协同形式划分为控制平面分布以及控制平面冗余备份。

It decomposes the cooperation of Control Plane into distributed Control Plane and Control Plane redundancy .

基于随机Petri网的冗余备份系统可信赖性研究

Study on Dependability of Redundant Standby System Based on Stochastic Petri Nets

因为DCS系统需要非常高的稳定性，所以基本上所有的设备都要进行冗余备份，以保证在一套系统坏掉的情况下，整个系统还能够正常运行。

Because the DCS system requires very high stability , therefore all equipments must carry on the redundant backup basically to guarantee the entire system can operate normally when one system broken .

其次，部署在不同的环境下的DNS服务，使得校园网对于外部用户的访问请求实现智能区分并做到关键业务的冗余备份。

Secondly , dispose DNS service under different environments , make campus network ask , realize to outside visit of user intelligence distinguish and accomplish key business redundant and spare .

系统中数据库服务器采用双机热冗余备份；而且，相邻的两个磅房在其中一台PC机上安装MySQL进行数掘备份，提高系统的可用性。

In the automobile weighing system database servers are hot redundant backup and MySQL is installed on one of the PC clients in neighboring weighing rooms so as to increase system reliability .

在系统构造阶段建立基于多样化的冗余备份机制，在系统运行阶段实行主动的任期责任方法（TenureDutyMethod-TDM），在系统受损阶段提供快速恢复手段。

It constructs the diversity based redundant backup policy in the system construction phase , carries out the active tenure duty method ( TDM ) when the system is running , and provides rapid recovery after a failure .

通过对企业数据网Outbound和Inbound数据流进行分析，阐述了该技术在多宿主企业网络接入Internet中实现负载均衡和冗余备份的工作原理和方法。

For realizing the load balance and redundant duplication in the process of multi-host enterprise network accessing into Internet , through analyzing the outbound and inbound data flow in enterprise network , the principle and method are introduced in this paper .

针对ForCES控制平面的冗余备份，本文分析了HSRP、VRRP协议和平稳重启等技术，将ForCES控制平面冗余备份类型划分为：冷状态备份、控制报文复制、平稳重启和协议同步。

According to the redundancy of Control Plane , this dissertation divides redundancy types of control plane of ForCES into : Cold State Backup , Control packet replication , Graceful Restart and Protocol Synchronization .

研究发现快速包分类算法EGT-PC由于压缩特里树路径带来规则集的大量冗余备份降低了算法的查找时间和存储空间等性能。

This paper found out the fast packet classification algorithm EGT-PC 's search time and storage space performance were decreased by the rules'redundant copies .

对于路由冗余备份功能的优化具有一定的实用价值。

It benefits the optimization of route redundancy backup function .

网络中三层交换机的冗余备份设计

Design of Redundancy Backup for Layer 3 Switch in Network

纠错码及纠删码技术是冗余备份机制的一个重要方法。

Technology of erasure-correcting code is an essential method to realize that .

创建冗余备份到多个供应商。

Create redundant backups to multiple providers .

论文首先简要介绍了一种容错的网控中心结构模型，该模型采用的主要策略是冗余备份。

Firstly , a fault tolerance NCC architecture which mainly makes use of redundant backup is presented .

冗余备份机制是安全存储系统提高系统可靠性和容灾容错能力的一个重要方法。

Redundancy mechanism is one of important methods to provide reliability and disaster-tolerant capability for storage system .

引发业务流程失灵的两个直接原因包括资源故障和结构问题，修复与冗余备份是两个有效的容错策略。

Two direct causes of business process failure are resource failures and structural problems and two fault-tolerant strategies are repair and redundancy .

与设置用户存取权限控制、冗余备份恢复、网络安全等多种安全策略共同建立有机的安全体系。

Together with the technology of Access Control , redundant backup recovery and network security , it makes an allround security system .

经实验测试，该缓存系统提供了可靠的数据冗余备份和失败恢复机制，系统运行稳定。

By test , the cache system provides reliable mechanisms of data redundancy backup and failure recovery , and it runs stably .

在目前太阳翼驱动机构的设计中，为了实现高可靠的设计目标，在系统中引入了冗余备份、动态冗余管理等可靠性措施，传统的故障树理论无法对其进行建模。

The conventional fault tree theory cannot model the SADA system , which employs spares and dynamic redundancy management to achieve high level of reliability .

在分析导致I/O节点失效主要原因的基础上，提出一种有效的并行文件系统容错方法：子文件循环冗余备份。

Based on the analysis of I / O node failure , an efficient fault tolerance method called Round-robin Redundant Backup of Subfile is proposed .

在对基于该算法的负载平衡系统进行容错性处理时，本文对关键设备即负载均衡器进行了冗余备份。

When carry on fault-tolerant treatment to the balanced system of load based on this algorithm , this paper has backed up redundantly the key equipment namely load balancing device .

即在硬件上采用先进的双网卡冗余备份技术、高速的中央处理芯片、军规级的数据存储设备以及高稳定性的集成电路板；

In the use of advanced dual-NIC hardware redundancy backup technology , and high-speed central processing chip , army regulation level data storage equipment and high stable integrated circuit boards ;

现在系统大容量要求带来的分布式需求，高可靠性带来的冗余备份需求，以及实用化带来的易管理需求，也因为没有统一方案而一直不能有效解决。

Because have not a common pattern to implement distribution and redundancy , the problem about large capability and easy to manage requirement for modern telecom system cannot be effectively resolved .

同时对域内链路状态数据库采用了分布式存储、冗余备份的方案，易于实现各节点上的路由表计算及路由器间的同步。

Also we design a link state database storage scheme of distributed storage and redundance backup which ease the implementation of the routing table computation in routing node and synchronization between neighbor routers .

系统现有架构存在规模相对固定、性能难以扩展、灵活性不足的缺点，难以满足海量存储、分布式冗余备份、规模动态调整等需求。

Because there are problems with the existing structure in fixed scale , unextended performance and insufficient flexibility , the system is difficult to meet the demand of massive storage , distributed redundancy and scale dynamic adjustment .

文中研究了业务流程失灵、修复与冗余备份模型，并就其特征进行了分析。最后，本文对于业务流程可生存性进行了仿真实验与应用研究。

In this dissertation , we studied the models of business process failure , business process repairing , and business process redundancy and analyzed their characteristics . Finally , we studied business process survivability through simulation experiment and application analysis .

仿真实验中分析的是业务流程冗余备份模型，应用研究中探讨的是信用卡办理业务流程，将上文提出的模型与方法应用到了实际业务流程之中。

In the simulation experiment we studied the model of business process redundancy and in the application analysis we studied the model of credit card applying business process . With models and methods proposed above we can resolve practical problems of enterprises .

这种情况下，服务器便很容易运行在满负荷状态下，服务器故障很容易产生，从而造成服务中断而造成经济损失，所以需要对服务器进行冗余备份及负载均衡。

The servers in these environments can easily run at full load conditions , while service interruptions may frequently occur and cause economic losses . So , it is necessary to backup the servers and load balancing when the servers are functioning .

其中远程复制技术是容灾备份的核心技术，即实时地复制数据到异地，保持数据的冗余备份，当本地数据被损坏后，能够通过异地的备份很快地进行恢复。

The real-time remote data replication technology , among others , is the core of DR backup system . It can conduct real time remote data copy to keep redundancy backup , and achieve rapid recovery with help of remote backup when local data is damaged .