Torsten wrote: >> RedHat *expects* 'performance issues'? >> >> Refreshing change, but I am otherwise not going to go there. > > This performence issues are only mentioned with GFS clustering (locking > a file and so on). > Do you know another way to set up a loadbalanced active/active > clustering with the same data (same storage)? > I think GFS (Global File System) is the only way to setup two or more > systems to read/write on the same data. > If not, tell me.
You may be interested in unison: http://www.cis.upenn.edu/~bcpierce/unison/ This is not a real time replication system, of course. But this could handle maildirs fairly well and in the improbable case a a total crash of one of the nodes, you still have all data (nearly) up to date on the other as they just use different storages. This could even be used to replicate data for servers residing in different countries. This is not without issues of course, but may be interesting to test.
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