On Wed, 2006-01-04 at 14:08 +0530, Manilal K M wrote: > Hello all, > I am a beginner in the world of cluster and high availability. I > have two mid-range servers (DELL) intended for web hosting. Each has > it's own disk storage of some TB each. I don't have any shared storage > for both of these servers. Both the servers are loaded with FC-4. > Currently one of the server is active(other one is not functional). > Now I need to cluster both these machines , so that I can make the > servers high available and high performance. But still the priority is > for High-Availability. I have tested different cluster suites > including redhat clusters. But I'm confused in benchmarking these > software. > Yesterday I came across Linux Virtual Server. I have read the > documents at http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/pt-lvs.html. > Now I'm confused more .. > I'll be greatly obliged if someone can help in making a decision > between redhat cluster suite and linux virtual server. If somebody > have experience in both these kindly provide a comparative study > including their pros & cons. > Applications that are intended to be deployed are: > apache, openldap, mysql, postgresql, asterisk, openvpn. You're so confused, young padawan. Red Hat Cluster Suite (RHCS) consists of 2 main features that are High- Availability & Load-Balancing. The High-Availability feature (always referred as Red Hat Cluster Manager) comes from Kimberlite (originally from Mission Critical Linux, Inc.) project while Load-Balancing feature (always referred as Piranha) comes from Linux Virtual Server (LVS) project. High-Availability feature in RHCS: http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/pt- clumanager.html Load-Balancing feature in RHCS: http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/pt-lvs.html If you want a so-called pure High-Availability feature, LVS seems not for you. You may love this project: http://www.linux-ha.org/ . If you require commercial-based application + commercial support, don't hesitate to use Red Hat Cluster Manager. -- Regards, Mohd Irwan Jamaluddin System Engineer, Magnifix Sdn. Bhd. [http://www.magnifix.com.my/] Tel: +603 42705073 Fax: +603 42701960 -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
