Shulou(Shulou.com)05/31 Report--

In this issue, the editor will bring you what the successful application solution of RHEL server high availability is. The article is rich in content and analyzes and describes it from a professional point of view. I hope you can get something after reading this article.

As the prevalence of the Internet and e-commerce has changed the enterprise Business Model, the customers of enterprises are no longer limited to Local customers. The whole world may be your customers, coupled with people's lifestyle changes, so there may be business opportunities 24 hours a day, 365 days a year.

When unexpected downtime occurs in the information system, except for the loss of productivity, customers and revenue. It may also be affected by further penalties, lawsuits and bad reputation. In addition, having a never-closing (High Availability) mode of operation is a competitive advantage and service key that can not be ignored. So now many enterprises not only require the servo system to provide reliable and continuous service during working hours, but also hope to provide 24 X 7 round-the-clock service to customers.

Brief introduction

In the commercial Unix market, high availability (High Availability) is the key to selling Unix server solutions. Virtually every Unix vendor has its own high availability software solution, such as IBM's high availability cluster software solution, which is HACMP (High Availability Cluster Multi-Processing) on AIX. Other major Unix suppliers such as HP,Sun,DEC and other suppliers have many similar software solutions available.

High Availability is the key to selling Unix to many enterprises today. Especially for servers that need web-based and other servers that must be available 24 hours a day, seven days a week throughout the year. As for the emerging grid computing market, this is especially true. However, there is no mature HA solution in Linux, even the HA solution put forward by RedHat on Advanced Server 2.1 has a big gap with the HA solutions of other Unix manufacturers.

However, with the launch of RedHat Enterprise 3.0, RedHat launched a heavyweight enterprise application "RedHat Cluster Suite" on it, which made a difference. Cluster Suite includes two technologies: Cluster Manager and Linux Virtual Server. Cluster Manager is the solution of HA. As long as two servers and shared external storage devices control the services executed by the server through Cluster Manager, the goal of HA can be easily achieved. However, Red Hat Cluster Suite is not included in RHEL 3.0 and must be purchased extra. And only RHEL AS and ES versions are supported.

This is what the successful application solution of RHEL server high availability shared by Xiaobian is. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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