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I assume you were using AWS? I know some of the AZ of other cloud providers (Azure? Oracle? Google?) are not fully siloed. They might have independent power and
by AugustoCAS 3y ago
I assume you were using AWS? I know some of the AZ of other cloud providers (Azure? Oracle? Google?) are not fully siloed. They might have independent power and networking, but be in the same physical location.
I'm mentioning this for other people to be aware as one can easily make the assumption that an AZ is the same concept on all clouds, which is not true and painful to realise.
- ak007 3y agoThanks for highlighting this. Indeed all CSPs are not the same
- jeremyjh 3y agoActually I assumed AWS did it the same way as the others - I thought maybe they are in another building on a campus but I didn’t think that should be a factor in planning and that I should use regions for geographic redundancy anyway.
- nijave 3y agoAfaik AWS AZs are physically separate. I think some maps exist. Around here, there's 3 AZs and they're multi building campuses about 10-20 miles apart situated in suburbs outside the city freeway belt.
- jamesfinlayson 3y agoYeah I definitely thought they were physically separate - I thought that an AZ might span multiple data centres too (could be wrong) and I thought they had to be at least 10km apart.
- pl4nty 3y agoAzure's zones are "physically separate", but it's unclear whether zones could be in the same building. Especially since they don't guarantee distance between zones - they just aim for 300mi (483km)