6.10. AWS Elastic Block Store CSI Driver Operator
You can provision and manage AWS Elastic Block Storage (EBS) in OpenShift Container Platform by using the AWS EBS Container Storage Interface (CSI) Driver Operator and driver, which provide dynamic volume provisioning and eliminate the need to pre-provision storage.
6.10.1. Overview of the AWS EBS CSI Driver Operator
OpenShift Container Platform is capable of provisioning persistent volumes (PVs) using the AWS Elastic Block Storage (EBS) Container Storage Interface (CSI) driver.
Familiarity with persistent storage and configuring CSI volumes is recommended when working with a CSI Operator and driver. For more information, see "Understanding persistent storage" and "Configuring CSI volumes".
To create CSI-provisioned PVs that mount to AWS EBS storage assets, OpenShift Container Platform installs the AWS EBS CSI Driver Operator (a Red Hat operator) and the AWS EBS CSI driver by default in the openshift-cluster-csi-drivers namespace.
- AWS EBS CSI Driver Operator
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The AWS EBS CSI Driver Operator provides a
StorageClassby default that you can use to create persistent volume claims (PVCs). You can disable this default storage class if desired (see "Managing the default storage class"). You also have the option to create the AWS EBSStorageClassas described in "Creating the EBS storage class". - AWS EBS CSI driver
- The AWS EBS CSI driver enables you to create and mount AWS EBS PVs.
If you installed the AWS EBS CSI Operator and driver on an OpenShift Container Platform 4.5 cluster, you must uninstall the 4.5 Operator and driver before you update to OpenShift Container Platform 5.0.
OpenShift Container Platform defaults to using the CSI plugin to provision Amazon Elastic Block Store (Amazon EBS) storage.
For information about dynamically provisioning AWS EBS persistent volumes in OpenShift Container Platform, see "Dynamic provisioning".
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