![]() In stage 2 (off critical path) redistributing of the data, done in the previous data distribution style, is completed in the background. In stage 1 (critical path), data is migrated from the source to a target cluster and the cluster is in read only mode. In this resize operation there are two main stages. Fast Classic Resize: Fast classic resize is as quick as elastic resize and functions similar to classic resize. #Redshift meaning manualThe manual data copy to the newly created target cluster must take place after the migration completes. If data is written to the source cluster after a snapshot is taken, the data must be manually copied over. Snapshot, restore, and resize: To be sure that the cluster is available during a classic resize operation, copy the existing cluster.During the resize operation, the source cluster is read-only. A resize operation takes two hours or more, or can take up to several days depending on your data size. Choose this option when you're resizing to a configuration that isn't available through elastic resize. Classic resize: Use classic resize to change the node type, number of nodes, or both.During a resize operation, the cluster is read-only. An elastic resize takes between 10-15 minutes. Note that when you only change the number of nodes, the queries are temporarily paused and connections are kept open. Elastic resize: If elastic resize is available as an option, use elastic resize to change the node type, number of nodes, or both.There are four ways to resize an Amazon Redshift cluster: ![]()
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