>>> "Lentes, Bernd" <[email protected]> schrieb am 16.12.2015 
>>> um
00:35 in Nachricht
<1621336773.386234.1450222516246.javamail.zim...@helmholtz-muenchen.de>:

[...]
> What is about a quorum disk ? I also read about "tiebrakers" or that STONITH 
> is magically able to chosse the right
> node to fence (i can't believe that).

If you read "the right" as "not both" it's OK ;-)

In HP Service Guard they used a "lock disk" (SCSI disk) as tie breaker: On 
split brain every node tried to "SCSI reserve" the unit, which only one node 
suceeded. Then (in an SBD like manner) the name of the survivor was written on 
to the disk (I guess), and every other node committed suicide (that's different 
from STONITH where external nodes kill another, AFIK). Something like that is 
still missing.

Personal note: Bernd, I think it's time to try things now. You discussed a lot, 
but I still think you never tried the proposals...

Regards,
Ulrich



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