标签归档:Linux Cluster

Linux High Availability RHCS

一、简介

RHCS 即 RedHat Cluster Suite ,中文意思即红帽集群套件。红帽集群套件(RedHat Cluter Suite, RHCS)是一套综合的软件组件,可以通过在部署时采用不同的配置,以满足你的对高可用性,负载均衡,可扩展性,文件共享和节约成本的需要。对于需要最大 正常运行时间的应用来说,带有红帽集群套件(Red Hat Cluster Suite)的红帽企业 Linux 集群是最佳的选择。红帽集群套件专为红帽企业 Linux 量身设计,它提供有如下两种不同类型的集群: 1、应用/服务故障切换-通过创建n个节点的服务器集群来实现关键应用和服务的故障切换 2、IP 负载均衡-对一群服务器上收到的 IP 网络请求进行负载均衡利用红帽集群套件,可以以高可用性配置来部署应用,从而使其总是处于运行状态-这赋予了企业向外扩展(scale- out)Linux 部署的能力。对于网络文件系统(NFS)、Samba 和Apache 等大量应用的开源应用来说,红帽集群套件提供了一个随时可用的全面故障切换解决方案。 继续阅读

Linux Cluster

This is the first part of my “Linux Cluster” posts:

  • Linux Cluster Part 1 – Install Corosync and Pacemaker on CentOS 6 – Learn how to install Corosync and Pacemaker on CentOS 6
  • Linux Cluster Part 2 – Adding and Deleting Cluster Resources – Learn how to add and delete Linux Cluster Resources and how to use CRM Shell
  • Linux Cluster Part 3 – Manage Cluster Nodes and Resources – Learn how to manage Linux Cluster Nodes (maintenance mode, standby mode, …) and Linux Cluster Resources (resource constraints – order, colocation, …)

Linux Cluster Part 1 – Install Corosync and Pacemaker on CentOS 6

I have been using Linux Cluster Engine called Corosync and Linux Cluster Resource Manager called Pacemaker for a while now and must say i am very satisfied with it. Corosync and Pacemaker combined can turn your Linux boxes into a Linux High Availability Cluster.

Corosync and Pacemaker Linux Cluster of course supports both Active/Passive and Active/Active modes on multi-nodes!
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Linux Cluster (source: clusterlabs.org)

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