GeminiDB Instances Are Deployed Across AZs
Rule Details
Parameter |
Description |
---|---|
Rule Name |
gaussdb-nosql-deploy-in-single-az |
Identifier |
GeminiDB Instances Are Deployed Across AZs |
Description |
If a GeminiDB instance is deployed in a single AZ, this instance is non-compliant. |
Tag |
gemini db |
Trigger Type |
Configuration change |
Filter Type |
nosql.instances |
Rule Parameters |
None |
Application Scenarios
An AZ is a physical location that uses independent power supply and networks. AZs in the same region can communicate with each other over an intranet. Instances can be deployed in a single AZ or in three AZs.
If your workloads require cross-AZ DR or are insensitive to cross-AZ latency, you are advised to deploy the primary node and read replicas in different AZs to achieve higher availability and reliability.
Solution
When buying a GeminiDB instance, select multiple AZs.
Rule Logic
- If a GeminiDB instance is deployed in a single AZ, this instance is non-compliant.
- If a GeminiDB instance is deployed across AZs, this instance is compliant.
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