application failover

ContextYou have decided to use the cluster to provide highly available services when designing or modifying the infrastructure layer.ProblemHow should you design a highly available infrastructure layer to prevent service loss due to a single server

Before you build a cluster in the Windows Server R2 DataCenter environment, you first have to failover the cluster to the Windows Server (Windows Server Failover CLuster, referred to as WSFC) has a basic understanding. WSFC must be deployed in a

The most outstanding performance of Oracle RAC clusters is high availability, which mainly includes load balance and failover. These technologies enable single point of failure (spof) to prevent normal access to the database by client applications,

It is necessary to note that the SQL Server failover cluster (SQL Server Failover Cluster) We build is an availability cluster, not a load-balanced cluster, which is designed to ensure continuity and availability of services, not to improve service

The first half of the task, there is a SQL Server Advanced topic, advance topics inside another important is about the cluster. Then there is the study.SQL Server cluster, the English full name is called Failover clustering, belongs to the category

The most outstanding performance of Oracle RAC clusters is high availability, which mainly includes load balance and failover. These technologies enable single point of failure (spof) to prevent normal access to the database by client applications,

Oracle RAC has both ha (high availiablity) and lb (loadbalance). And the basis of its highly available Failover (fail over)  It means that the failure of any node in the cluster will not affect the user's use, the user connected to the failed node

Oracle RAC also has HA (High Availiablity) and LB (LoadBalance), and its High availability is based onFailover (Failover)It means that the failure of any node in the cluster will not affect the user's use, and the user connected to the faulty node

Reprint: http://dufei.blog.51cto.com/382644/902026Today, customers ask about Windows Clustering, after all, the cluster technology supported by Windows SERVER2008 and Windows Server2003 are a bit different, and the following knowledge is collected

Oracle RAC also has ha (high availiablity) and lb (loadbalance). And its high availability is based on failover (failover). It means that the failure of any node in the cluster will not affect the user's use, the user connected to the failed node