[DRBD-user] Doubt! < SOLVED >

Gilberto Nunes gilberto.nunes at selbetti.com.br
Tue Jul 28 19:30:48 CEST 2009

Note: "permalinks" may not be as permanent as we would like,
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Hi all

I get it!

I had help from my friend Pedro Sousa and he help so much...

He notice that I have the following line on drbd.conf:

allow-two-primeries

I put out this line and everything work fine now...

Thanks a lot




Em Ter, 2009-07-28 às 07:46 -0300, Gilberto Nunes escreveu:
> Hi
> 
> thanks for reply
> this what I do, actually..
> 
> My doubt is why when I create some files on node-2, when drbd device
> turn back to primary node, the file do not appear.????
> 
> I use heartbeat as well...And I do not mount the drbd device at the same
> time in two hosts...
> 
> The drbd device is only mounted in secondary hosts, when primary hosts
> has fail...
> 
> So, the heartbeat on secondary host, mount the right drbd device for
> me...
> 
> Then I go to partition where drbd device is mount and create some
> files...
> 
> Then, when the primary node back, the heartbeat mount drbd device
> again... But all files that I create when drbd device is mounted on
> secondary hosts, is not there...
> 
> WHY!!!
> 
> Thanks
> 
> 
> 
> Em Ter, 2009-07-28 às 09:21 +0100, Mark Watts escreveu:
> > On Mon, 2009-07-27 at 10:45 -0300, Gilberto Nunes wrote:
> > > Hi everybody
> > > 
> > > I have some doubt here...
> > > I deply two virtual server (KVM) with Ubuntu 9.04
> > > I had install drbd via apt-get.
> > > Everything is work fine...
> > > I had two nodes, node-A and node-B.
> > > I can turn node-B as primary and return node-A as a primary...
> > > I can mount /dev/drbd0 on node-A and node-B as well...
> > > But, when I write some files on node-B, on mounted /dev/drbd0, when I
> > > turn back node-A as a primary, on I had write on node-B do not appear on
> > > node-A!! :|
> > > 
> > > I do not any ideia what is going on!!!
> > 
> > DRBD replicates blocks from one device to another, across a network.
> > It does not know anything about the filesystem, so you MUST use a
> > cluster-aware filesystem (GFS/GFS2 or OCFS2) if you want to mount the
> > DRBD device on both servers at the same time.
> > 
> > EXT3 is NOT cluster-aware, and you will LOOSE DATA if you try and mount
> > an EXT3 DRBD filesystem on both servers at the same time.
> > 
> > If you are just looking for Active/Passive fail-over, with a replicated
> > EXT3 partition, then you can use DRBD with heartbeat to achieve this.
> > Heartbeat will ensure that only one device has the partition mounted at
> > any one time.
> > 
> > The DRBD users guide gives comprehensive details on using DRBD with
> > Heartbeat: http://www.drbd.org/users-guide/ch-heartbeat.html
> > 
> > 
> > Mark.
> > 
> Gilberto Nunes Ferreira
> TI
> Selbetti Gestão de Documentos
> Telefone: +55 (47) 3441-6004
> Celular: +55 (47) 8861-6672
> 
> 
> _______________________________________________
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Gilberto Nunes Ferreira
TI
Selbetti Gestão de Documentos
Telefone: +55 (47) 3441-6004
Celular: +55 (47) 8861-6672





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