Thanks for the quick answers! But the answers raised few more questions. Yes I need LVS to balance ~100 nodes which access the same data on GFS. In this case what modules do I need from the RedHat Cluster? Do I need locks (DLM)? I think I do, don't I? 1.CCS? 2.GFS? 3.GFS-kernel? Anything else? Regards Hal --- Schaefer Christian <Christian.Schaefer2@xxxxxxxxxxxxxxxxx> wrote: > Dear Hal, > > this limitation means, that you can only run up to 16 rgmanagers in one > cluster infrastructure. rgmanager thereby is only needed if you build HA > services like a active/passive MySQL cluster services. If you like to build a > 100 node webserver farm with external loadbalancing/failover - such as LVS > and/or keepalived - no rgmanager is needed to be run on that cluster. > > In this case you can set up a 100 node cluster with shared gfs devices as you > like. I too recommend you to have a look at > http://open-sharedroot.org/documentation. The concept demonstarted on that > page is do build a n node cluster from one filesystem single image which > keeps administration simple. > > Greetings, > Christian > > Best Regards, > > Christian Schäfer > Abt. IT-Applications > Messe München > > Tel.: +49 (0) 89 949 21985 > E-Mail: christian.schaefer2@xxxxxxxxxxxxxxxxx > WWW: www.messe-muenchen.de > > > > > -----Ursprüngliche Nachricht----- > > Von: linux-cluster-bounces@xxxxxxxxxx > > [mailto:linux-cluster-bounces@xxxxxxxxxx] Im Auftrag von Hal > > Gesendet: Mittwoch, 11. Juli 2007 12:34 > > An: linux-cluster@xxxxxxxxxx > > Betreff: Redhat cluster and GFS node limit > > > > Hi all, > > > > I have a project which requires a cluster of over 100 GFS > > nodes. GFS supports > > them, but RH cluster supports only 16 nodes. For this case > > the documentation > > says: > > > > "Red Hat GFS is scalable up to 300 nodes, a Red Hat Cluster > > Manager limits the > > total number of nodes in a cluster to 16. Therefore, in this > > scenario, Red Hat > > GFS scalability is limited. If the 16-node limit is too small for your > > deployment, you may want to consider using multiple Red Hat > > Cluster Manager > > clusters." > > > > So any docs or ideas on how to build "multiple Red Hat Cluster Manager > > clusters"? > > Will this solution enable all 100+ nodes to access the same > > File system? > > > > > > Thank you! > > Hal > > > > > > > > ______________________________________________________________ > > ______________________ > > Looking for earth-friendly autos? > > Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. > > http://autos.yahoo.com/green_center/ > > > > -- > > Linux-cluster mailing list > > Linux-cluster@xxxxxxxxxx > > https://www.redhat.com/mailman/listinfo/linux-cluster > > > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster > ____________________________________________________________________________________ Need a vacation? Get great deals to amazing places on Yahoo! Travel. http://travel.yahoo.com/ -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
