Add "a|/dev/mapper/mpath.*|" to the filter= line of your lvm.conf as such. filter = [ "a|/dev/sda2|", "a|/dev/mapper/mpath.*|", "r/.*/" ] Then make sure your types= variable has device-mapper in it. types = [ "device-mapper", 1 ] That should be all you need. C'est Pierre wrote: > Hello, > > I've setup multipath with multipath-tools and I guess everything is OK > there. However, I can't get lvm to recognize the multipath'ed devices: > > # dmsetup ls > 3600508b40010130d00006000011c0000p1 (253, 4) > system-lv03 (253, 2) > system-lv01 (253, 1) > system-lv00 (253, 0) > dm-3p2 (253, 7) > dm-3p1 (253, 6) > > cabtagdb01:~ # fdisk -l /dev/dm-3 > > Disk /dev/dm-3: 53.6 GB, 53687091200 bytes > 64 heads, 32 sectors/track, 51200 cylinders > Units = cylinders of 2048 * 512 = 1048576 bytes > > Device Boot Start End Blocks Id System > /dev/dm-3p1 1 1 1008 83 Linux > /dev/dm-3p2 2 51200 52427776 8e Linux LVM > cabtagdb01:~ # fdisk -l /dev/mapper/3600508b40010130d00006000011c0000 > > Disk /dev/mapper/3600508b40010130d00006000011c0000: 53.6 GB, 53687091200 > bytes > 64 heads, 32 sectors/track, 51200 cylinders > Units = cylinders of 2048 * 512 = 1048576 bytes > > Device Boot Start > End Blocks Id System > /dev/mapper/3600508b40010130d00006000011c0000p1 1 > 1 1008 83 Linux > /dev/mapper/3600508b40010130d00006000011c0000p2 2 > 51200 52427776 8e Linux LVM > > > # pvcreate /dev/dm-3p2 > Device /dev/dm-3p2 not found. > > # pvcreate /dev/mapper/3600508b40010130d00006000011c0000p2 > Device /dev/mapper/3600508b40010130d00006000011c0000p2 not found. > > Does anyone have any guess on what the problem might be? I seem to be > one-step from getting this solved and I am going through these > hassles. > > Thank you, > Pierre > > _______________________________________________ > 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/ _______________________________________________ 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/
