On Sat, Apr 18, 2009 at 5:25 PM, Sven Eschenberg <sven whgl uni-frankfurt de>
I tried to create a PE+VG+LV ontop of a mdraid. For no obvious reason the lvm volume show extremely poor performance - The transferrates are as little as 30% of the rates on the md device itself.
In contrast creating a partition table ontop of the array gives nearly no performance impact.
Does anybody have the slightest idea, wht might be going wrong here?
P.S.: I tried aligning the first PE in the VG with the mdraid chunk size, no difference whatsoever.
linux-lvm mailing list
linux-lvm redhat com
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/