当区域出现故障时单个 Azure VM 会发生什么

What happens to a single Azure VM when a zone goes down

我们有一项 SLA 要求较低的服务,因此我们将其托管在单个 VM 上,不需要多个 VM 的可用性 set/zones。 如果出现区域或故障域故障会怎样? Azure 会自动将 VM 重新分配到操作区域/主机 (FD),还是我们必须主动重启或重新部署 VM 才能重新分配它?

document开始,当遇到意外停机时,Azure 会将您的 VM 迁移到同一数据中心内健康的物理机。

When detected, the Azure platform automatically migrates (heals) your virtual machine to a healthy physical machine in the same datacenter. During the healing procedure, virtual machines experience downtime (reboot) and in some cases loss of the temporary drive. The attached OS and data disks are always preserved.

但是,如果您使用单个 VM,建议使用 标准 SSD 更高的 SLA。

A single instance virtual machine with a Standard SSD will have an SLA of at least 99.5%, while a single instance virtual machine with a Standard HDD will have an SLA of at least 95%. See SLA for Virtual Machines.