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WPC T-GM + GNSS updates General PTP docs reorg and clean up Updates based on Aneesh's review comments removing gnss-state-change from api/ocloudNotifications/v1/<resource_address>/CurrentState Adding metric details Adding new PTP image Adding final PTP 4.14 image Aneesh's comments jack's comments Adjust TOC Peer review comments
58 lines
2.0 KiB
Plaintext
58 lines
2.0 KiB
Plaintext
// Module included in the following assembly:
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//
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// * virt/storage/virt-automatic-bootsource-updates.adoc
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//
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:_mod-docs-content-type: PROCEDURE
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[id="virt-enabling-volume-snapshot-boot-source_{context}"]
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= Enabling volume snapshot boot sources
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Enable volume snapshot boot sources by setting the parameter in the `StorageProfile` associated with the storage class that stores operating system base images. Although `DataImportCron` was originally designed to maintain only PVC sources, `VolumeSnapshot` sources scale better than PVC sources for certain storage types.
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[NOTE]
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====
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Use volume snapshots on a storage profile that is proven to scale better when cloning from a single snapshot.
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====
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.Prerequisites
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* You must have access to a volume snapshot with the operating system image.
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* The storage must support snapshotting.
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.Procedure
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. Open the storage profile object that corresponds to the storage class used to provision boot sources by running the following command:
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+
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[source,terminal,subs="attributes+"]
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----
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$ oc edit storageprofile <storage_class>
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----
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. Review the `dataImportCronSourceFormat` specification of the `StorageProfile` to confirm whether or not the VM is using PVC or volume snapshot by default.
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. Edit the storage profile, if needed, by updating the `dataImportCronSourceFormat` specification to `snapshot`.
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+
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.Example storage profile
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[source,yaml]
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----
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apiVersion: cdi.kubevirt.io/v1beta1
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kind: StorageProfile
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metadata:
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# ...
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spec:
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dataImportCronSourceFormat: snapshot
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----
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.Verification
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. Open the storage profile object that corresponds to the storage class used to provision boot sources.
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+
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[source,terminal,subs="attributes+"]
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----
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$ oc get storageprofile <storage_class> -oyaml
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----
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. Confirm that the `dataImportCronSourceFormat` specification of the `StorageProfile` is set to 'snapshot', and that any `DataSource` objects that the `DataImportCron` points to now reference volume snapshots.
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You can now use these boot sources to create virtual machines.
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