Azure Key Vault in the US Central region went unavailable earlier today and briefly took down our production application because it could not connect to the vault. The service appears to be working again, but I'm requesting a detailed incident report from support. We're using the Premium SKU, so I'm also trying to understand whether that provides any meaningful protection from this kind of regional outage and how to avoid a repeat.
2 Answers
When you say Premium, do you mean the Premium Key Vault SKU?
I thought Key Vault had built-in geo-redundancy or failover to its paired region without much extra configuration. It would be useful to know why the vault was unavailable and whether the outage affected the service itself or regional connectivity. Until you have the incident details, it may be worth reviewing a multi-region design and making sure the application can handle temporary secret-store failures instead of treating Key Vault as an always-available dependency.
That’s what I’m trying to clarify with support. The outage was severe enough that I’m also considering whether we need a separate backup strategy for critical secrets.
Yes, we’re using the Premium SKU for the Key Vault.