Upgrading from DC1 node types to DC2 node types - Amazon Redshift
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Upgrading from DC1 node types to DC2 node types

To take advantage of performance improvements, you can upgrade your DC1 clusters to DC2 node types.

Clusters that use the DC2 node type must be launched in a virtual private cloud (EC2-VPC).

If your DC1 cluster is not in a VPC:

  1. Create a snapshot of your DC1 cluster. For more information, see Amazon Redshift snapshots and backups.

  2. Create a VPC, or choose an existing VPC in your account. For more information, see Managing clusters in a VPC.

  3. Restore your snapshot to a new DC2 cluster in the VPC. For more information, see Restoring a cluster from a snapshot.

If your DC1 cluster is already in a VPC, choose one of the following methods:

  • Resize your DC1 cluster and change the node type to DC2 as part of the operation. Your cluster is not available for a period of time during the resize operation. For more information, see Resizing clusters.

  • Create a snapshot of your DC1 cluster, then restore your snapshot to a DC2 cluster in the VPC. For more information, see Restoring a cluster from a snapshot.

Consider the following when upgrading from DC1 to DC2 node types.

  • DC1 clusters that are 100% full might not upgrade to an equivalent number of DC2 nodes. If more disk space is needed, you can:

    • Resize to a configuration with more available disk space.

    • Clean up unneeded data by truncating tables or deleting rows.

  • DC2 clusters don't support EC2-Classic networking. If your DC1 cluster is not running in a VPC, create one for your DC2 migration. For more information, see Managing clusters in a VPC.

  • If you resize the cluster, it might be put into read-only mode for the duration of the operation. For more information, see Resizing clusters.

  • If you have purchased DC1 reserved nodes, you can upgrade your DC1 reserved nodes to DC2 nodes for the remainder of your term. For more information about how to change your reservation with the Amazon CLI, see Upgrading reserved nodes with the Amazon CLI.

  • If you use restore to upgrade from dc1.large to dc2.large, and change the number of nodes, then the snapshot must have been created at cluster version 1.0.10013 or later.

  • If you use restore to upgrade from dc1.8xlarge to dc2.8xlarge, then the snapshot must have been created at cluster version 1.0.10013 or later.

  • If you use elastic resize to upgrade from DC1 to DC2, and change the number of nodes, then the cluster must be at cluster version 1.0.10013 or later.

  • If a snapshot of dc1.8xlarge cluster to upgrade is from a cluster earlier than version 1.0.10013, then first restore the snapshot from the dc1.8xlarge cluster into a new dc1.8xlarge cluster with the same number of nodes. Then use one of the following methods to upgrade the new dc1.8xlarge:

    • Use a snapshot from the new restored cluster to upgrade to dc2.8xlarge.

    • Use elastic resize to upgrade the new restored cluster to dc2.8xlarge.