Confusion over my language as far as I can tell, and one mistake on my part. If you want to parallelize your swap, all your priorities need to be identical. Setting the swap as listed in the document fill up one bit of the swap before the others. What was incorrect was my ordering. Roger is correct about pri=32767 being used before pri=0. See man 2 swapon for the specifics. So change the pri=1 to pri=3 for a 4 way "stripe" (really a round robin method and not a true stripe). On Tue, 2002-04-02 at 11:14, Roger Pettett wrote: > On 26 Mar 2002, Joe Landman wrote: > > > On Tue, 2002-03-26 at 10:15, Andrew Shewmaker wrote: > > > Jeff Layton wrote: > > > > > > > > Set multiple swap partitions to the same priority > > > > > > | > > > /dev/sda2 none swap sw,pri=3 0 0 > > > /dev/sdb2 none swap sw,pri=3 0 0 > > > /dev/sdc2 none swap sw,pri=3 0 0 > > > /dev/sdd2 none swap sw,pri=1 0 0 > > > > Almost... Set all the pri=0. Otherwise swap is not parallelized. If > > one partition is set to pri=1, and the rest set to pri=3, swap will fill > > the pri=1 up before attempting to use the pri=3 resources. > > > > This isn't correct - pri can be any value between 0 and 32767 with 32767 > being the highest priority. Swap is parallelised between any partitions > with the same 'pri' value, ordered from highest to lowest. > > R. > > -- > +---------------------------------------------------------------+ > Roger Michael Pettett Email: rmp@sanger.ac.uk > Project Leader (Web Systems), Web: http://www.sanger.ac.uk/ > The Sanger Institute http://www.yourgenome.org/ > Wellcome Trust Genome Campus http://www.ensembl.org/ > Hinxton > Cambridge CB10 1SA > +---------------------------------------------------------------+ > > _______________________________________________ > Bioclusters maillist - Bioclusters@bioinformatics.org > http://bioinformatics.org/mailman/listinfo/bioclusters -- Joseph Landman, Ph.D. Senior Scientist, MSC Software High Performance Computing email : joe.landman@mscsoftware.com messaging : page_joe@mschpc.dtw.macsch.com Main office : +1 248 208 3312 Cell phone : +1 734 612 4615 Fax : +1 714 784 3774