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57 lines
1.8 KiB
Plaintext
57 lines
1.8 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * storage/understanding-persistent-storage.adoc
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//
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// This module should only be present in openshift-enterprise and
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// openshift-origin distributions.
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[id="block-volume-support_{context}"]
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= Block volume support
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{product-title} can statically provision raw block volumes. These volumes
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do not have a file system, and can provide performance benefits for
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applications that either write to the disk directly or implement their own
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storage service.
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Raw block volumes are provisioned by specifying `volumeMode: Block` in the
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PV and PVC specification.
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[IMPORTANT]
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====
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Pods using raw block volumes must be configured to allow privileged containers.
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====
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The following table displays which volume plugins support block volumes.
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.Block volume support
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[cols="1,1,1,1", width="100%",options="header"]
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|===
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|Volume Plugin |Manually provisioned |Dynamically provisioned |Fully supported
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|Amazon Elastic Block Store (Amazon EBS) | ✅ | ✅ | ✅
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|Amazon Elastic File Storage (Amazon EFS) | | |
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ifndef::openshift-dedicated,openshift-rosa[]
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|AliCloud Disk | ✅ | ✅ | ✅
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|Azure Disk | ✅ | ✅ | ✅
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|Azure File | | |
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|Cinder | ✅ | ✅ | ✅
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|Fibre Channel | ✅ | | ✅
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endif::openshift-dedicated,openshift-rosa[]
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ifndef::openshift-rosa[]
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|GCP | ✅ | ✅ | ✅
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endif::openshift-rosa[]
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ifndef::openshift-dedicated,openshift-rosa[]
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|HostPath | | |
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|IBM VPC Disk | ✅ | ✅ | ✅
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|iSCSI | ✅ | | ✅
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|Local volume | ✅ || ✅
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|NFS | | |
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|{rh-storage-first} | ✅ | ✅ | ✅
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|VMware vSphere | ✅ | ✅ | ✅
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endif::openshift-dedicated,openshift-rosa[]
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|===
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ifndef::openshift-dedicated,openshift-rosa[]
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:FeatureName: Using any of the block volumes that can be provisioned manually, but are not provided as fully supported,
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include::snippets/technology-preview.adoc[leveloffset=+1]
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endif::openshift-dedicated,openshift-rosa[]
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