Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Am Dienstag 15 Februar 2011 schrieb Etienne Pretorius: > [root at 0-0-0:/tmp] pvcreate /dev/drbd0 <== INIT PV > Physical volume "/dev/drbd0" successfully created > [root at 0-0-0:/tmp] lvm > lvm> pvdisplay > --- Physical volume --- > PV Name /dev/md0 > VG Name system > PV Size 1.82 TiB / not usable 3.79 MiB > Allocatable yes (but full) > PE Size 4.00 MiB > Total PE 476931 > Free PE 0 > Allocated PE 476931 > PV UUID 0IHkdd-bNWK-ElVc-ITeX-7TBt-0Zmp-yxeQA0 > > "/dev/dm-3" is a new physical volume of "1.78 TiB" > --- NEW Physical volume --- > PV Name /dev/dm-3 > VG Name > PV Size 1.78 TiB > Allocatable NO > PE Size 0 > Total PE 0 > Free PE 0 > Allocated PE 0 > PV UUID nZMgAA-LKij-zNMM-TqEn-qIGG-75Nr-tVasx3 > > lvm> vgcreate vm /dev/drbd0 > No physical volume label read from /dev/drbd0 <== INIT PV ?? > Physical volume "/dev/drbd0" successfully created > Volume group "vm" successfully created Your PV labeling seems to be lost from pvcreate to vgcreate!? => Data written to /dev/drbd0 lost? Test this one: ^^^^^^^^^^^^^^ write: echo "HELLO" | dd of=/dev/vgsys/test02 oflag=direct bs=512 cbs=512 conv=block read: dd if=/dev/vgsys/test02 iflag=direct bs=512 count=1 | strings => HELLO write: echo "FOOBAR" | dd of=/dev/vgsys/test02 oflag=direct bs=512 cbs=512 conv=block read: dd if=/dev/vgsys/test02 iflag=direct bs=512 count=1 | strings => FOOBAR You may to have rearange the filter to first see drbd device: filter = [ "a|drbd.*|", "a|md.*|", "r|.*|" ] -- Roland.Friedwagner at wu.ac.at Phone: +43 1 31336 5377 IT Services - WU (Vienna University of Economics and Business)