Adding Block Storage to a Cluster
Attach extra block storage to the worker nodes of a cluster in Big Data Service. Block storage is a network-attached storage volume that you can use like a regular hard drive.
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.
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.