>> use systat > > Using 'systat -iostat' it shows mostly idle with 25-70 MB/s on the aacd0 > array. Most of time above 50. Thanks for the help! > > -- > Robert > > 70MB/s can't be "mostly idle". or you meant CPU mostly idle. changing to RAID-not5 will help. seeking why disk traffic is so high - will help even more.