On Sun, 2 May 2010, Alexander 'Leo' Bergolth wrote: > My raid chunk size is 64k and I am using 5 data-bearing discs (raid 5 > with 6 discs), so the raid stripe size should be 64k * 5 = 320k. > > But unfortunately the --physicalextentsize must be a power of 2, so I > cannot use a multiple of 320k as the physical extent size. > > What are your experiences with tuning and properly aligning lvm + raid? > Does anyone know a workaround? Use 4 data bearing disks. Let #6 be a spare. You're supposed to have a spare anyway. -- Stuart D. Gathman <stuart@bmsi.com> Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154 "Confutatis maledictis, flammis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial. _______________________________________________ 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/