"the system resources of all nodes is exhausted" - I'll second the question -- What did you mean by that? But perhaps an answer your question -- you may be in some luck -- since you are running 4.2 - you have the new feature "QOS" (Quality of Service) and the mmchqos command that allow you to cap or throttle IO intensive "maintenance" commands like mmapplypolicy and mmrestripefs. --marc of GPFS. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160104/13a66468/attachment.html>