On Sat, Sep 15, 2001 at 08:56:20AM +0200, Jörg Spilker wrote: > i'm running a 2.4.9 kernel with the lastest pdcraid modules from RedHats > Website installed and compiled. Seems to work fine. I did some > benchmarks writing on the RAID device and on one of the two array disks > seperatly. Here the results (with ext2 filesystem): Hi, Thanks for the benchmarks; I'm currently trying to tune the performance of the drivers (bought 4 IBM ide disks for that). The first thing you should do is "echo 511 > /proc/sys/vm/max-readahead" as root. That doubled the performance for me (with the latest drivers I'm working on) Greetings, Arjan van de Ven