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Using ionice Over Cluster

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linux-howto

http://serverfault.com – Background: I using a computing cluster at work (4 slave nodes and 1 head node) that uses the SGE job scheduler. Recently we've been running jobs that do some heavy IO and it has been slowing down shell/vim usage (small IO, but we need it running smoothly 24/7). I found ionice and it seems like a perfect solution for one computer, but I'm not sure it will be helpful on a cluster... Question: If I run a process (let's say vim) through the head node with a ionice setting (-c2 -n0), will it still have any priority over processes on other computers (high IO on slaves -c2 -n4) to the shared HD (HowTos)