[DRBD-user] DRBD 9: 3-node mirror error (Low.dev. smaller than requested DRBD-dev. size.)

Paul Clements paul.clements at us.sios.com
Mon Jul 22 17:38:49 CEST 2019

> Apparently, you used the default values when you initially created the
> DRBD meta data for this installation. Since you had only two nodes
> listed in the configuration file and did not specify otherwise, drbdadm
> created meta data for a two node cluster.
> Then you added another node to the configuration file, and now you have
> three nodes in the configuration file, so drbdadm creates meta data for
> a three node cluster.

Yes, I knew that could be the problem. That's why I zeroed out the
drbd metadata (I've even zeroed out the entire disk on all nodes). Is
there some other way I can erase the metadata? I don't want to do some
other odd configuration things (external metadata, etc.).

Is there some metadata somewhere else, beside the device?

Or is there some other problem?


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