OSDOCS-20279: Add rationale for VM storage class migration requirement

[danielclowers]

Version(s):
4.20+

Issue:
https://redhat.atlassian.net/browse/OSDOCS-20279

Link to docs preview:
Will add after preview build completes

QE review:

• QE has approved this change.

Additional information:
Addresses a gap flagged by an AI content-gap ticket by explaining that a PVC cannot change its storage class after creation, which is why VM storage class migration requires copying to a new PVC instead of an on-demand change.

[openshift-ci-robot]

@danielclowers: This pull request references OSDOCS-20279 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the bug to target the "5.1.0" version, but no target version was set.

Details

In response to this:

Version(s):
4.20+

Issue:
https://redhat.atlassian.net/browse/OSDOCS-20279

Link to docs preview:
Will add after preview build completes

QE review:

• QE has approved this change.

Additional information:
Addresses a gap flagged by an AI content-gap ticket by explaining that a PVC cannot change its storage class after creation, which is why VM storage class migration requires copying to a new PVC instead of an on-demand change.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[ocpdocs-previewbot]

🤖 Thu Sep 03 19:31:26 - Prow CI generated the docs preview:

https://119239--ocpdocs-pr.netlify.app/openshift-enterprise/latest/virt/managing_vms/virtual_disks/virt-migrating-storage-class.html
https://119239--ocpdocs-pr.netlify.app/openshift-rosa-hcp/latest/virt/managing_vms/virtual_disks/virt-migrating-storage-class.html
https://119239--ocpdocs-pr.netlify.app/openshift-rosa/latest/virt/managing_vms/virtual_disks/virt-migrating-storage-class.html

[openshift-ci]

@danielclowers: all tests passed!

Full PR test history. Your PR dashboard.

Details

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