[DRBD-user] What causes split-brain? How to avoid it?

Tip Ring sv476 at rediffmail.com
Fri Apr 7 14:45:17 CEST 2006

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

We are using DRBD v0.7.11 and kernel v2.6.10. In the syslog sometimes I observed message saying "Split-brain detected...." and then both the DRBDs go to "StandAlone" state. This is occuring mainly during the initial full sync. When/why/how does this split-brain occur? Are there any ways to avoid it? We have only one network interface between the two DRBDs and the same is used for data traffic and heartbeat. Thanks.

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