However, most of the time the big cloud providers have more availability and redundancy capability than almost any enterprise can provide.
For an example, Microsoft recently had an outage of its Multifactor Authentication (MFA) for Azure and Office 365 users in North America,
There's a report on it here. And here's Microsoft's Root Cause Analysis.
Go read the Next Steps. Here's #1:
Do you think your enterprise could add "Additional physical partitioning," "Logical partitioning between authentication types," and "Improved partitioning between service tiers?"
- Fine-grained fault domain isolation work has been accelerated. This work builds on the previous fault domain isolation work which limited this incident to North American tenants. This includes:
- Additional physical partitioning within each Azure region.
- Logical partitioning between authentication types.
- Improved partitioning between service tiers.
If you could, you must be in the Fortune 100. And that's just the first bullet of actions.
These outages from the cloud providers get a lot of publicity but unless you're a mega-scale enterprise any of them are way more capable than you'll ever hope to be.