Parallel Sysplex brain split



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Parallel Sysplex brain split

Postby grachik89 » Mon Jan 11, 2016 7:26 pm

Hi guys! I have a question.
How does long distance two-site sysplex solve the brain-split problem?
If only connection between sites is failed.
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Re: Parallel Sysplex brain split

 

Re: Parallel Sysplex brain split

Postby Akatsukami » Mon Jan 11, 2016 10:38 pm

If I am not mistaken, a failure of communication between the sites is, by definition, a split-brain problem.
"You have sat too long for any good you have been doing lately ... Depart, I say; and let us have done with you. In the name of God, go!" -- what I say to a junior programmer at least once a day
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Re: Parallel Sysplex brain split

Postby grachik89 » Tue Jan 12, 2016 12:18 pm

Ok, thank you. And how to solve this problem?
I explored SFM settings but I found nothing about it. There are CONNFAIL and WEIGHT parameters only.
What would happen if all of communication fails?
I mean coupling links, CTC connections and so on.
For example if DWDM fails.
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