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I'm talking about the kind of failure that hit a Microsoft Azure data center: https://www.datacenterknowledge.com/microsoft/azure-outage-proves-hard-way-availa
by Johnny555 8y ago
I'm talking about the kind of failure that hit a Microsoft Azure data center:
https://www.datacenterknowledge.com/microsoft/azure-outage-proves-hard-way-availability-zones-are-good-idea https://www.datacenterknowledge.com/microsoft/azure-outage-p...
“ but in this instance, temperatures increased so quickly in parts of the data center that some hardware was damaged before it could shut down" ... "A significant number of storage servers were damaged, as well as a small number of network devices and power units.”
- manigandham 8y agoYea if that damaged all the storage servers containing your data then there would be data loss.
- Johnny555 8y agoThat's why I asked if that 99.999999999% durability number includes datacenter loss. It's an unlikely failure mode but is it .00000000001% unlikely? I don't know. Given the fact that Azure lost a datacenter with this failure mode, I don't think it's in the "likelihood of an asteroid destroying Earth within a million years" ballpark. Their durability page doesn't really clear it up, they say "Because at these probability levels, it’s far more likely that ... Earthquakes / floods / pests / or other events" known as “Acts of God” destroy multiple data centers". But from the post above: "any one file (or piece of file) is in exactly one datacenter." So it doesn't take multiple datacenter failures to lose data, just one unless you explicitly copy your data to multiple datacenters.
- hinkley 8y agoIf a lightning strike is close enough the surge protector won’t save your equipment. When I read the overview of this I expected a roomful of fried servers, not an orderly shutdown triggered by a cooling failure.