Help Center/ GaussDB(DWS)/ FAQs/ Cluster Management/ What Are the Differences Between Cloud SSDs and Local SSDs in GaussDB(DWS)?

Updated on 2024-10-21 GMT+08:00

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What Are the Differences Between Cloud SSDs and Local SSDs in GaussDB(DWS)?

Cloud SSDs support scale-out. Therefore, you are advised to use them. The differences between cloud SSDs and local SSDs are as follows:

Cloud SSDs
- Cloud SSDs use EVS as storage media and can be scaled out as data grows. This is more flexible.
- Cloud SSDs are not bound to the ECS flavor. Therefore, you can adjust the flavors of cloud SSDs when needed.
Local SSDs
- Local SSDs use ECS local disks as storage media. They have fixed capacity and higher performance but cannot be scaled out.
- If the capacity is insufficient, you have to add more nodes to increase capacity. The flavors of local SSDs cannot be adjusted.

Parent topic: Cluster Management

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