Oracle Cloud Infrastructure Documentation

Adding Block Storage to Nodes

Attach extra block storage to nodes in a cluster in Big Data Service. Block storage is a network-attached storage volume that you can use such as a regular hard drive.

Note

While worker nodes (including compute only) require uniform storage sizes per node, edge nodes support flexible storage, with a unique storage size per edge node.

Nodes in a cluster can have remote, network-attached, block storage or local, direct-attached, Non-Volatile Memory Express (NVMe) storage. Remote block storage is flexible and economical, but local NVMe storage provides the highest performance. The default storage type is determined when the cluster is created, based on the shape chosen for the cluster. The high-performance bare metal nodes and dense I/O virtual machine nodes are created with NVMe storage. Other kinds of virtual machine nodes are created with block storage.

You can attach extra storage to any cluster. You can't remove storage from a cluster.

    1. On the Clusters list page, find the cluster that you want to work with. If you need help finding the list page or the cluster, see Listing Clusters in a Compartment.
    2. From the Actions menu (three dots) select Add block storage.
    3. In the Add block storage panel, enter following details:
      Node type
      Select the type of node you want to add.
      Additional block storage per node
      Enter a number to indicate the number of gigabytes (GB) of block storage to add (between 150 GB and 32 TB) in increments of 50 GB.
      Cluster admin password
      Enter the administration password for the cluster.
    4. Select Add.

  • Use the oci bds block-storage add command and required parameters to add block storage to worker nodes.

    oci bds block-storage add --bds-instance-id <bds_instance_id> --block-volume-size-in-gbs <block_volume_size_in_gbs> --cluster-admin-password <cluster_admin_password> --node-type <node_type> [OPTIONS]

    For a complete list of flags and variable options for CLI commands, see the Command Line Reference for Big Data.

  • Use the AddBlockStorage operation to to add block storage to nodes.