Policy: AWS > Well-Architected Tool > AWS Well-Architected Framework > Reliability > REL 10. How do you use fault isolation to protect your workload? > Use bulkhead architectures

Like the bulkheads on a ship, this pattern ensures that a failure is contained to a small subset of requests/users so the number of impaired requests is limited, and most can continue without error. Bulkheads for data are usually called partitions or shards, while bulkheads for services are known as cells.

See Use bulkhead architectures for more information.

Targets

This policy targets the following resource types:

AWS > Well-Architected Tool > AWS Well-Architected Framework

Primary Policy

This policy is used with the following primary policy:

AWS > Well-Architected Tool > AWS Well-Architected Framework > Reliability > REL 10. How do you use fault isolation to protect your workload?

Controls

Setting this policy configures this control:

AWS > Well-Architected Tool > AWS Well-Architected Framework > Reliability > REL 10. How do you use fault isolation to protect your workload?

Policy Specification

Schema Type	`string`
Default	`Skip`
Valid Values [YAML]	`Skip` `True` `False`

In Your Workspace

Policy Settings by Type report

Developers

Category URI

tmod:@turbot/turbot#/control/categories/other

Policy Type URI

tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel10UseBulkhead

GraphQL

query policyType(id: "tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel10UseBulkhead") { … }

query policySettings(filter: "policyTypeId:'tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel10UseBulkhead'") { … }

query policyValues(filter: "policyTypeId:'tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel10UseBulkhead'") { … }

CLI

Get Policy Type

turbot graphql policy-type --id "tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel10UseBulkhead"

Get Policy Settings

turbot graphql policy-settings --filter "policyTypeId:tmod:@turbot/aws-wellarchitected-framework#/policy/types/rel10UseBulkhead"