1.1.1. Data Replication and Data Sharing Between Real Servers

1.1.1. Data Replication and Data Sharing Between Real Servers

Since there is no built-in component in LVS clustering to share the same data between the real servers, the administrator has two basic options:

The first option is preferred for servers that do not allow large numbers of users to upload or change data on the real servers. If the cluster allows large numbers of users to modify data, such as an e-commerce website, adding a third layer is preferable.


Note: This documentation is provided {and copyrighted} by Red Hat®, Inc. and is released via the Open Publication License. The copyright holder has added the further requirement that Distribution of substantively modified versions of this document is prohibited without the explicit permission of the copyright holder. The CentOS project redistributes these original works (in their unmodified form) as a reference for CentOS-4 because CentOS-4 is built from publicly available, open source SRPMS. The documentation is unmodified to be compliant with upstream distribution policy. Neither CentOS-4 nor the CentOS Project are in any way affiliated with or sponsored by Red Hat®, Inc.