Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hmmm. I like riddles, so I'm going to google this. Is there any simple solutions, in example force drbd to deal with that ? Regards, Olivier XO Project http://xen-orchestra.com On Tue, Mar 9, 2010 at 11:22 AM, Lars Ellenberg <lars.ellenberg at linbit.com> wrote: > On Tue, Mar 09, 2010 at 10:59:54AM +0100, Olivier LAMBERT wrote: >> I've got your point. I know my first message is long and maybe >> complicated. It seems you "jump" some lines. It's not "nested" LVM as >> described in the doc (because I RTFM before try to ask help). >> >> My problem is not located on DRBD hosts. I've run some test, and I can >> really simplify the example. Please, read this, I think it's clear now >> : >> Let's say I export a simple physical volume with DRBD. So, NO LVM in >> DRBD, just replicate "/dev/sdb" for example, and export it >> (/dev/drbd0) on each DRBD host with iSCSI. >> >> So, on ALL my clients (connected iSCSI), I saw with "fdisk -l" : >> Disk /dev/sdb: 2998.8 GB, 2998869356544 bytes >> >> So, my CLIENT1 connected to DRBD1, decide to create a volume group and >> a logical volume. >> Despite all my efforts (vgscan, pvscan, lvscan), CLIENT2 connected to >> replicated DRBD2, cannot see anything ! No VG, no LV ! Nothing ! >> >> But, if I decide to do that on DRBD2 : >> drbdadm disconnect ressource && drbdadm connect ressource >> >> Just after THIS, I can see all the stuff I've created on CLIENT1. >> >> So, it's NOT a question of LVM on DRBD, because in this case, I don't >> use it anymore. I can undestand if LVM data's on client are not >> replicated on each DRBD hosts, but WHY it works if I >> disconnect/reconnect these two ? It doesn't have any sense to me.... > > Does the keyword "cache coherence" help? > > -- > : Lars Ellenberg > : LINBIT | Your Way to High Availability > : DRBD/HA support and consulting http://www.linbit.com > > DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. > __ > please don't Cc me, but send to list -- I'm subscribed > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user >