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http://www.linuxquestions.org – Hi, I am using opennms on a 64 bit centos5 machine, its postgres installed separate file system, when i start opennms and postgres its load avrage goes to abmormal and mechine responce is too slow. and its iostats show 100% Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm %util sda2 0.00 153.40 244.40 106.40 3131.20 2001.60 14.63 119.35 323.82 2.85 100.02 To double check it have setup a 16 GB ram disk and move the database data on it but still its var shows 100% Have some body an (HowTos)