Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hari Sekhon wrote: > I am trying to set up a new drbd with lvm on it this time, and after > doing > > # pvcreate -ff /dev/drbd0 > Physical volume "/dev/drbd0" successfully created > > I get a message which indicates some confusion: > > # pvs > Found duplicate PV m8M0tNOCx83QS53D07kybsEDl8oNt4X6: using /dev/sdb1 > not /dev/drbd0 > Found duplicate PV m8M0tNOCx83QS53D07kybsEDl8oNt4X6: using /dev/drbd0 > not /dev/sdb1 > Found duplicate PV m8M0tNOCx83QS53D07kybsEDl8oNt4X6: using /dev/sdb1 > not /dev/drbd0 > PV VG Fmt Attr PSize PFree > /dev/sda2 VolGroup00 lvm2 a- 931.19G 880.69G > /dev/sdb1 lvm2 -- 14.55T 14.55T > > > I don't think it should be touching /dev/sdb1 in case it screws the > drbd block device from underneath, there isn't any mention of this > behaviour that I can see in the drbd users manual, can anyone point me > in the right direction on how to handle this or if it's a problem at all? > > Also, this is a 16TB block device created with the very latest > drbd-8.3.0 , which was 16TB, so how come doing a pvcreate has left me > with 14.55TB, is there really 1.5TB in activity log due to drbd?? > > Cat /proc/partitions seems to think the drbd device is bigger than > that... perhaps I'm misinterpreting but I'd like to know where all > that space went. > > # cat /proc/partitions > major minor #blocks name > > 8 17 15624999983 sdb1 > 147 0 15624523104 drbd0 > > -h > Now when I try to move on regardless, I get an error about device or resource busy (a very good thing I think this is some drbd cleverness to lock the device from being arbitrarily overwritten underneath the drbd layer?) # lvcreate -L 14TB -n LogVol02 VolGroup01 Found duplicate PV m8M0tNOCx83QS53D07kybsEDl8oNt4X6: using /dev/sdb1 not /dev/drbd0 device-mapper: create ioctl failed: Device or resource busy Aborting. Failed to activate new LV to wipe the start of it. I have tried changing preferred devices to be preferred_names = [ "^/dev/drbd\d+$" ] but this doesn't seem to make much difference, even a new pvcreate still says Found duplicate PV m8M0tNOCx83QS53D07kybsEDl8oNt4X6: using /dev/sdb1 not /dev/drbd0 Any advice on what I should do about this would be most welcome. Thanks -h -- Hari Sekhon Always open to interesting opportunities http://www.linkedin.com/in/harisekhon