Hello All!  meanwhile I was able to find some information about the dependence between Job-Impact and Performance.  A EMC Engineer I talked to said that a Job running impact-Level LOW might consume up to 10% , a Job running MEDIUM might consume up to 30% CPU load. This is something I'm also able to reproduce on my 7.1.1 Cluster.  Another post (which is dealing about performance ) explains the OneFS Job impact on Disks. Ask the Expert: Isilon Performance Analysis also see the last passage "OneFS JOBs (overhead) in Welcome to ask the expert for EMC OneFS performance.docx  - Alexander
Hello All!  I'm looking for some information about job impact (LOW - MEDIUM - HIGH) and generated cpu or either cluster load? I remember reading somthing long time ago about prio LOW might consuming X% cpu load and so on... but I couldn't find any documentation yet.  Who can help me?  Thanks!
job impact vs CPU load