Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 15/02/2011 19:03, Roland Friedwagner wrote: > 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? > Yes, you are right. I also get an error on the console saying [ 558.940032] device-mapper: table: 253:4: linear: dm-linear: Device lookup failed when I try to create a logical volume. Seems like the changes are not persistent on the drdb device. > Test this one: > ^^^^^^^^^^^^^^ > write: > echo "HELLO" | dd of=/dev/vgsys/test02 oflag=direct bs=512 cbs=512 conv=block echo "HELLO" | dd of=/dev/vgsys/test02 oflag=direct bs=512 cbs=512 conv=block dd: opening `/dev/vgsys/test02': No such file or directory Debian based machine, does not have /dev/vgsys at all. Looked for it on another debian based machine just to make sure. > 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|.*|" ] > Changed the filter, problem still persists. Thank you.