Ok, after a bit more benchmarking, it seems clear that striping logical volumes across multiple heterogenous IDE drives (all masters) is only beneficial (WRT performance) on large file sizes. The file size at which the performance increase happens appears to depend on system memory. On my system at 128M RAM, the filesize is around 32M, with 64M RAM that drops to 8M files; but the point at which the step occurs is nothing to do with striping vs linear. Also, there seems to be very very little difference for *reads*; only writes (and the difference is definitely worth it. I get a 10Mps improvement over linear mapping starting at 64M files and that improvement is stable as filesize increases; linear mapping performance seems to constantly drop off as file size increases). I guess that this makes sense all things considered. What I'd like to know is; has anyone else done any similar benchmarking on LVM? If so, where can I get a peek at it please! :) _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
