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1.2 Fault Domains
A Fault Domain is a grouping of hardware and infrastructure within an Availability Domain. Each Availability Domain has three Fault Domains. Fault Domains ensure that compute instances are not distributed across one physical hardware within a single Availability Domain. Hardware failures or hardware maintenance within one Fault Domain do not affect other Fault Domains.
When creating a new Compute instance, users can select a Fault Domain. If not selected by the user, the system automatically assigns them. Changing the Fault Domain for an instance requires you to terminate the instance and re-create the instance, so make sure you choose the new one.
With Fault Domains
- Prepare for unexpected hardware failures
- To prepare for planned hardware maintenance
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