OSDOCS-15304#Performance plus for Azure Disk #96181
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modules/persistent-storage-csi-azure-disk-perf-plus-create-new-disk.adoc
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| Performance plus for Azure Disk has the following limitations: | ||
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| * Can be enabled only on Standard HDD, Standard SSD, and Premium SSD managed disks that are 513 GiB or larger. |
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Note that if a user asks for a smaller value the disk size will be rounded up to 513GiB
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+1, let's announce loudly in case the customers are surprised by the disk size.
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| :_mod-docs-content-type: PROCEDURE | ||
| [id="persistent-storage-csi-azure-disk-perf-plus-create-new-disk_{context}"] | ||
| = Enabling performance plus by creating new disks |
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| * Can be enabled only on new disks. | ||
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| *Workaround:* Create a snapshot of a disk that has performance plus enabled on it, and then create a new disk from the snapshot. |
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I don't think we tested this @duanwei33
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Hmm, actually we tested the following scenarios:
- The previous disk doesn't have performance plus enabled on it, and it is not impossible to enable performance plus on the existing disk.
- Create a snapshot of the existing disk and create a new disk from the snapshot with the storageclass which has parameter of enablePerformancePlus: "true"
- Or Clone a PVC of the existing disk with the storageclass which has parameter of enablePerformancePlus: "true".
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oh excellent thanks! We should document both options then!
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| :_mod-docs-content-type: PROCEDURE | ||
| [id="persistent-storage-csi-azure-disk-perf-plus-from-snapshots_{context}"] | ||
| = Creating new disks from existing disks or snapshots with performance plus enabled |
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That won't work with OCP, this is for users who directly interact with Azure
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| * Can be enabled only on new disks. | ||
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| *Workaround:* Create a snapshot of a disk that has performance plus enabled on it, and then create a new disk from the snapshot. |
There was a problem hiding this comment.
Hmm, actually we tested the following scenarios:
- The previous disk doesn't have performance plus enabled on it, and it is not impossible to enable performance plus on the existing disk.
- Create a snapshot of the existing disk and create a new disk from the snapshot with the storageclass which has parameter of enablePerformancePlus: "true"
- Or Clone a PVC of the existing disk with the storageclass which has parameter of enablePerformancePlus: "true".
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| :_mod-docs-content-type: PROCEDURE | ||
| [id="persistent-storage-csi-azure-disk-perf-plus-create-new-disk_{context}"] | ||
| = Enabling performance plus by creating new disks |
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| :_mod-docs-content-type: PROCEDURE | ||
| [id="persistent-storage-csi-azure-disk-perf-plus-from-snapshots_{context}"] | ||
| = Creating new disks from existing disks or snapshots with performance plus enabled |
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| Performance plus for Azure Disk has the following limitations: | ||
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| * Can be enabled only on Standard HDD, Standard SSD, and Premium SSD managed disks that are 513 GiB or larger. |
There was a problem hiding this comment.
+1, let's announce loudly in case the customers are surprised by the disk size.
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| *Workaround:* Create a snapshot of a disk that has performance plus enabled on it, and then create a new disk from the snapshot. | ||
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| * Not supported for disks recovered with Azure Site Recovery. |
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Hmm, should we mention this? I don't think we need to cover "Azure Site Recovery".
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yeh i think it's because it's mentioned as a limitation by microsoft
Version(s): 4.20+
Issue: https://issues.redhat.com/browse/OSDOCS-15304
Link to docs preview: https://96181--ocpdocs-pr.netlify.app/openshift-enterprise/latest/storage/container_storage_interface/persistent-storage-csi-azure.html#performance-plus-for-azure-disk
QE review:
Additional information:
PTAL: @gcharot @duanwei33 @jsafrane