[DRBD-user] Off-site Quorum Provider?

Robinson, Eric eric.robinson at psmnv.com
Fri Mar 2 22:41:39 CET 2012

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.

We have two geographically separate data centers connected by 4 x
Gigabit links (in 2 trunks). Our HA clusters are distributed between the
data centers, with each node of a 2-node cluster in a separate data
center. (In the case of our 3-node clusters, 2 nodes are in one data
center and the 3rd node is in the other data center.) Cluster membership
information is communicated though both of the Gigabit trunks, where
each trunk is a separate Corosync ring. DRBD is replicated through one
of the trunks.

Question: If the links between the data centers are severed, split brain
will occur. What is the best way to provide quorum from a third location
out on the Internet?

Note: I posted this question to the Linux HA list, too, because I was
not sure which was better suited.


Eric Robinson




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