Updated on 2025-09-11 GMT+08:00
Instance Storage Types
Database systems are one of the most important IT systems and have high requirements on storage I/O performance. GaussDB supports ultra-high I/O and extreme SSD storage types.
- Ultra-high I/O: Ultra-high performance cloud disks excellent for enterprise mission-critical services as well as workloads demanding high throughput and low latency. For details, see the descriptions of "Ultra-high I/O" in Disk Types and Performance in Elastic Volume Service Service Overview.
- Extreme SSD: Superfast disks ideal for workloads demanding ultra-high bandwidth and ultra-low latency. For details, see the descriptions of "Extreme SSD" in Disk Types and Performance in Elastic Volume Service Service Overview.

Extreme SSD storage is only available for whitelisted users. To apply for the permissions needed, submit a service ticket.
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