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OCPBUGS-5981: Add to LVM Storage docs how to expand a PVC

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Alexandra Molnar
2023-02-15 10:43:13 +00:00
committed by openshift-cherrypick-robot
parent edb44fd4fa
commit 91d84151a2
2 changed files with 36 additions and 0 deletions
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modules/lvms-scaling-storage-expand-pvc.adoc Normal file
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// Module included in the following assemblies:
//
// storage/persistent_storage/persistent_storage_local/persistent-storage-using-lvms.adoc
:_content-type: PROCEDURE
[id="lvms-scaling-expand-pvc_{context}"]
= Expanding PVCs
To leverage the new storage after adding additional capacity, you can expand existing persistent volume claims (PVCs) with LVM Storage.
.Prerequisites
* Dynamic provisioning is used.
* The controlling `StorageClass` object has `allowVolumeExpansion` set to `true`.
.Procedure
. Modify the `.spec.resources.requests.storage` field in the desired PVC resource to the new size by running the following command:
+
[source,terminal]
----
oc patch <pvc_name> -n <application_namespace> -p '{ "spec": { "resources": { "requests": { "storage": "<desired_size>" }}}}'
----
. Watch the `status.conditions` field of the PVC to see if the resize has completed. {product-title} adds the `Resizing` condition to the PVC during expansion, which is removed after the expansion completes.

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storage/persistent_storage/persistent_storage_local/persistent-storage-using-lvms.adoc
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@@ -85,6 +85,17 @@ include::modules/lvms-scaling-storage-of-single-node-openshift-cluster-using-rha
* xref:../../../storage/persistent_storage/persistent_storage_local/persistent-storage-using-lvms.adoc#lvms-reference-file_logical-volume-manager-storage[{lvms} reference YAML file]
include::modules/lvms-scaling-storage-expand-pvc.adoc[leveloffset=+2]
[role="_additional-resources"]
.Additional resources
* xref:../../../storage/persistent_storage/persistent_storage_local/persistent-storage-using-lvms.html#lvms-scaling-storage-of-single-node-openshift-cluster_logical-volume-manager-storage[Scaling up storage by adding capacity to your {sno} cluster]
* xref:../../../storage/persistent_storage/persistent_storage_local/persistent-storage-using-lvms.html#lvms-scaling-storage-of-single-node-openshift-cluster-using-rhacm_logical-volume-manager-storage[Scaling up storage by adding capacity to your single-node OpenShift cluster using RHACM]
* xref:../../../storage/expanding-persistent-volumes.adoc#add-volume-expansion_expanding-persistent-volumes[Enabling volume expansion support]
//Upgrading
include::modules/lvms-upgrading-lvms-on-sno.adoc[leveloffset=+1]