Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Tue, Jan 19, 2016 at 11:02:35AM +0000, EDV at bauerfunken.de wrote: > >> >> I've setup a drbd cluster of 2 nodes. Both nodes use a physical > >> >> partition type 8e (Linux LVM) and synced by drbd successfully. > >> >> The response of drbd-overview seems to be ok, because it say > >> >> UpToDate/UpToDate on both nodes. > >> >> > >> >> Now, when I create a logical volume by pvcreate, vgcreate and lvcreate > >> >> on this drbd-device it create this volume successfully too, but when > >> >> I check the configuration by th following way: > >> >> > >> >> Primary node: > >> >> > >> >> vgchange -a n <vg> > >> >> drbdadm secondary <drbd> > >> >> > >> >> Secondary node: > >> > >> >You need to 'drbdadm primary res' before anything can read the > >> >/dev/drbdX device. > >> > >> Sorry, but I did it before changing the state of this volumegroup. > >> > >> So I did: > >> > >> drbdadm primary <drbd> > >> vgchange -a y <vg> > >> > >> When I do a pvscan after changing the primary node, no pv's were found > >> and the same, by changing the primary again. > > > >stale lvm meta data cache (daemon)? > >try a pvscan --cache, > >see the man page for details. > > Thanks for your response. > > When I create a new pv and test it with > > pvscan --cache > > the response on the primary node is: > > Found duplicate PV Trs11CMat90PaBJ2lm4YpzEKVXnDtx0P: using /dev/drbd0 not /dev/cciss/c0d0p4 > Using duplicate PV /dev/drbd0 from subsystem DRBD, ignoring /dev/cciss/c0d0p4 You should have filtered out the cciss path. also check the "global_filter" in lvm.conf, not just the filter, and double check that your initramfs knows about lvm device filters as well. > Erasing this new pv returns nothing on the same node. > > In lvm.conf I've set > > write_cache_state = 0 > > so I'm wondering why lvm use a cache. see lvmetad(8) and use_lvmetad in lvm.conf(5) > This configuration is used in a openSuSE 42.1 on both nodes. -- : Lars Ellenberg : http://www.LINBIT.com | Your Way to High Availability : DRBD, Linux-HA and Pacemaker support and consulting DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. __ please don't Cc me, but send to list -- I'm subscribed