Reserved Instance - 术语表
Reserved Instance - 术语表
A reserved instance is a billing discount offered in exchange for a usage commitment.
Detailed Explanation
Reserved Instance is a fundamental concept in cloud computing. Understanding reserved instance is essential for making informed decisions about cloud architecture, pricing, and optimization.
Key Aspects
- Definition: A reserved instance is a billing discount offered in exchange for a usage commitment.
- Relevance: Reserved Instance directly impacts cloud performance, cost, and architecture decisions
- Measurement: Reserved Instance is typically measured and billed according to the cloud provider’s pricing model
- Optimization: Proper understanding of Reserved Instance enables better resource utilization and cost savings
价格对比
| 云厂商 | Related 服务 | 每小时 | Notes |
|---|---|---|---|
| AWS | AWS service | $0.0960 | Integrated with AWS ecosystem |
| Azure | Azure service | $0.0960 | Integrated with Azure ecosystem |
| GCP | GCP service | $0.0670 | Competitive pricing |
| Alibaba | Alibaba service | $0.0500 | Best APAC pricing |
How It Affects Cost
Reserved Instance has a direct impact on cloud costs:
- Higher reserved instance typically means higher instance pricing
- Optimizing reserved instance usage can reduce costs by 20-50%
- Right-sizing based on actual reserved instance needs is critical
- Monitoring reserved instance utilization helps identify waste
Best Practices
- Monitor regularly: Track reserved instance usage to identify trends and anomalies
- Right-size: Choose the appropriate level of reserved instance for your workload
- Use auto-scaling: Automatically adjust reserved instance based on demand
- Consider cost trade-offs: Balance reserved instance with other factors like latency and throughput
- Review pricing models: Compare on-demand, reserved, and spot pricing for reserved instance resources
Related Terms
数据来源
- API: Multi-provider 官方定价API
- 获取时间: 2026-07-23
- 方法论: 价格通过官方API获取并标准化为美元每小时/每月费率