Comment by JoeAltmaier
4 years ago
No surprise here. I've never encountered a redundancy feature in storage that worked. Power failure, drive controller failure, connection failure - and data is kaput. Regardless of the promised.
How can it be so bleak? Can it be that nobody's data redundancy is real? Sure. If you don't test it, regularly, then by the hoary rules of computing it doesn't work.
It would be... interesting to run Jepsen on some million-dollar SANs and discover that none of them pass.
Don't know what a million-dollar SAN is. Everybody's data is worth a million to them.
But any consumer-grade redundancy scheme (mirror, raid set, automatic backup) is likely useless.