Hi, I have looked at the available information about Mosix (prompted by Ivo, for those who know us :). Surprisingly, neither their site nor their distribution contains much in the way of detailed description, so I had to hunt around. I still have some questions which hopefully somebody can answer: 1. I kinda understand how Mosix migrates long-running CPU-intensive processes, but how does it distinguish between user programs (blast) and administration commands? If I run ifconfig, sar or dmesg on the master node, do I get the output from the master or from a random slave? 2. There are two types of MFS, right? One is "better NFS", which has similar semantics but somehow better throughput (how?). Another, called MFS/DFSA, is a network parallel filesystem similar to PVFS or GFS. Is this correct? 3. How easy it is to "turn Mosix off"? Can I simply reboot into a non-Mosix kernel on all nodes, or will I also have to take care of inittab and other files which Mosix modifies? Thanks, Simon -- Simon (Vsevolod ILyushchenko) simonf@cshl.edu http://www.simonf.com simonf@simonf.com The central message of Buddhism is not "every man for himself"! ("The Fish Called Wanda")