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第 10 章 Optimizing storage

Optimizing storage helps to minimize storage use across all resources. By optimizing storage, administrators help ensure that existing storage resources are working in an efficient manner.

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

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表 10.1. 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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