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4.5. Available persistent storage options
Understand your persistent storage options so that you can optimize your OpenShift Container Platform environment.
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表 4.1. Available storage options
Storage type
Description
Examples
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
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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