Hello, I have installed FreeBSD-4.10 to NEC Express5800 120R. I attached LSI Logic MegaRAID SATA 150-6 with six SATA disks. And configure RAID 5 LUN. But, I/O prformance is poor(about 5MB/s). Is amr suitable for MegaRAID SATA 150-6 ? Please tell me newfs parameters if there is recommendation. Best regards, Yui