On Sunday 16 December 2007 9:27:41 am [EMAIL PROTECTED] wrote: > Note also that by creative use of multiple servers > the number of files in a _realm_ can be about 200 times (i.e. around the max > number of servers) bigger than the above. > I am not aware though of any realm doing such tricks in production.
Actually, the WWU realm has two server machines each of which is running two server processes. Each server process has 71G of file space in which it is storing the files. That provides a total of 280G of file space to use to support the replication needed. And given this arrangement, I don't normally replicate to both server processes on the same machine. My replication scheme includes a server from each machine so if a disk fails I don't lose all replicas. This could easily be extended to more machines and more servers per machine. Note, each server process requires a unique IP address so the machines will have IP aliases on their network hardware. I'm also assuming that with a 64bit machine with a lot of real memory, one could run more than the 2 server processes per machine without major problems. By the way, the server setup scripts support multiple server processes in the script. --Phil -- Phil Nelson (phil at cs.wwu.edu) http://www.cs.wwu.edu/nelson NetBSD: http://www.NetBSD.org Coda: http://www.coda.cs.cmu.edu
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