<div dir="ltr"><a href="https://linbit.com/drbd-user-guide/drbd-guide-9_0-en/#s-configuring-quorum-tiebreaker">https://linbit.com/drbd-user-guide/drbd-guide-9_0-en/#s-configuring-quorum-tiebreaker</a><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 8, 2024 at 4:51 PM Josh Fisher <<a href="mailto:jfisher@jaybus.com">jfisher@jaybus.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
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<div>On 3/7/24 04:40, Boris Tobotras wrote:<br>
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<pre>Hi drbd users,
I’ve set up a two-node configuration, and it works as expected protecting me from the single node failure.
Now I want to also be protected against network failure — and the resulting split brain state.
I’ve added a third diskless node to serve as a tiebreaker. Now when I’m testing working node failure, I’m
sometimes getting this third node promotion to an active one. </pre>
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<p><font size="4">I believe that you need 3 replicating nodes to use
quorum. Diskless nodes do not participate in quorum, since they
do not themselves have a copy of the replicated data and so
cannot vouch for its validity. <br>
</font></p>
<p><font size="4">An alternative is to add redundancy to the network
itself.<br>
</font></p>
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<pre>The configuration is as follows:
resource "data" {
device minor 1;
disk /dev/sda;
meta-disk internal;
on "worker1" {
node-id 0;
address <a href="http://172.16.3.113:7789" target="_blank">172.16.3.113:7789</a>;
}
on "worker2" {
node-id 1;
address <a href="http://172.16.3.114:7789" target="_blank">172.16.3.114:7789</a>;
}
on "breaker" {
node-id 2;
address <a href="http://172.16.3.115:7789" target="_blank">172.16.3.115:7789</a>;
disk none;
}
connection-mesh {
hosts "worker1" "worker2" "breaker";
}
}
What am I doing wrong here?
Can DRBD be configured so the diskless node never gets promoted?
Or is there another way to get what I need?
Thanks a lot in advance!
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