When Should I Use Node Flavor Change, Scale-Out, or Scale-In for DWS?
The following table lists the application scenarios of the cluster modification options.
| Option | Scenario | Remarks |
|---|---|---|
| Scale-out | If your business grows and you have higher requirements on storage capacity and performance, or the CPU of your cluster is insufficient, you are advised to scale out your cluster. | - |
| Scale-in | During off-peak hours when a large amount of cluster capacity is idle, you can reduce the number of nodes to reduce costs. | - |
| Changing the Node Flavor | This option changes cluster flavors (including CPU, memory, and others) to meet service requirements. It does not change the number of nodes. | Elastic specification change is supported only for storage-compute coupled clusters that use ECSs and EVS disks. You can choose Change node flavor to enable elastic specification change. |
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