Your options seem valid. There's always going to be a trade-off and there's
always going to be some sort of sync-mechanism that you'll have to trust.
Whether that's the middleware app or the database replication mechanism or
something else.
What option to choose is a question only you can make. Approach is rationally,
make a risk-analysis of things that could go wrong, determine:
- impact
- blast radius
- "cost" (in SLA, in contractual $, in reputation $, ...)
- how quickly you can detect it, how quickly you can remediate it if it breaks
Personally I have good experiences with Lightning Stream in a multi-cloud
setup, but again: your "best option" might be different than mine.
> 3)
> Other option I might have missed ?
Catalogue zones might be an idea as well?
Frank
Frank Louwers
Kiwazo
e: he...@kiwazo.com
m: +32 475 66 57 57

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