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Dell APEX Block Storage for AWS supports both single and multiple availability zone deployments. With multiple AZ deployments, a single cluster will span across the availability zones.
AZ type | Fault set | Instance / EBS volumes |
Single AZ | None |
|
Multiple Availability Zones (single region with three AZs)
| Three (one per AZ) |
|
For an explanation of EC2 instance types and drive calculations, see the section Dell APEX Block Storage for AWS limits.