I am running CentOS4.4 on two "black" box systems that are identically configured. Both have 500 GB internal drives, ( same type) and were installed using the same kickstart configuration. The drives are being mirrored using LVM. When I check the first system it is re-syncing and the resync time and speed are finish=18559.6min speed=355K/sec On the second system the time and speed are finish=89.5min speed=68170K/sec I can't figure out why the speeds are different between the two. I checked /proc/sys/dev/raid/speed_limit_ and they are the same. The priority of the md proceses are they same. I tweaked the setting of the speel_limit_min and increase the nice priority of the resync process, on the first box, but I could never get it better than finish=4551.8min speed=1445K/sec I've googled and I haven't found much more useful information that to adjust those settings. Besides those setting what else dictates the speed used? Thanks, Len _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/