Use aligned availability sets#
Reliability · Virtual Machine · Rule · 2020_06 · Important
Use availability sets aligned with managed disks fault domains.
Description#
Availability sets can be configured to align with managed disk fault domains. When aligned, the fault domain for storage is co-located with compute. Aligned availability sets help prevent compute and storage from a single VM spanning multiple fault domains.
Recommendation#
Consider deploying VMs with managed disks into aligned availability sets.
Links#
- RE:04 Target metrics
- Availability sets
- Managed disk integration with availability sets
- Reliability checklist
- Azure deployment reference