4.5. Available persistent storage options


Understand your persistent storage options so that you can optimize your OpenShift Container Platform environment.

表 4.1. Available storage options
Storage typeDescriptionExamples

Block

  • Presented to the operating system (OS) as a block device
  • Suitable for applications that need full control of storage and operate at a low level on files bypassing the file system
  • Also referred to as a Storage Area Network (SAN)
  • Non-shareable, which means that only one client at a time can mount an endpoint of this type

AWS EBS and VMware vSphere support dynamic persistent volume (PV) provisioning natively in OpenShift Container Platform.

File

  • Presented to the OS as a file system export to be mounted
  • Also referred to as Network Attached Storage (NAS)
  • Concurrency, latency, file locking mechanisms, and other capabilities vary widely between protocols, implementations, vendors, and scales.

RHEL NFS, NetApp NFS [1], and Vendor NFS

Object

  • Accessible through a REST API endpoint
  • Configurable for use in the OpenShift Container Platform Registry
  • Applications must build their drivers into the application and/or container.

AWS S3

  1. NetApp NFS supports dynamic PV provisioning when using the Trident plug-in.
重要

Currently, CNS is not supported in OpenShift Container Platform 4.5.

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