[DRBD-user] Choreography for db storage consistency check use case

Felix Frank ff at mpexnet.de
Thu Feb 2 10:16:29 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.


On 02/02/2012 12:03 AM, John Anthony wrote:
> 1) If the use case feasible ? Assuming YES!

No. Sorry. The moment you promote the disconnected Secondary, you
achieve split brain.

You can conciously choose to do that, then discard your data before
making the reconnect. But then all changes done by your application
checks are undone, so you haven't gained anything.

It's outright impossible for DRBD to "merge" changes done during a time
of split operation.


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