PCP-5982 - Improvement to volume mounting reconciliation behaviour

[benradstone]

✅ Pull Request Checklist

Before submitting your PR for review, please complete this checklist to ensure quality.

Checklist

• The PR description in the Describe the Change section explains what changed and
  provides any additional context.
• A Jira ticket is provided in the Jira Tickets section AND in the PR title. If this PR has
  no corresponding Jira ticket, then please indicate so in this section.
• Preview links are for all affected pages are provided in the Changed Pages. If this PR
  makes no user-facing changes, please indicate so in this section.
• Conduct a self-review for your pages using your preview links. Verify grammar, clarity, and accuracy.
• Check formatting for your pages
  • Verify indentations, admonitions, and tables (if applicable).
  • Verify all images display.
• Ensure all Vale comments are resolved.
  • If required, raise a PR to modify the
    Vale accept list.
    This can be done later, but leave a note if required.
• All CI jobs have completed successfully.
• Add Backport labels if the change should be reflected in previous versions. If required, remember to add the
  auto-backport label, as well as the backport-version-** labels.
• Outside review: Does this PR require review outside of Docs? If yes, tag the appropriate reviewer (for
  example, Engineering, Product, etc.)
• Add the notify-slack label once this checklist has been completed. The team will be notified and review your PR.

Good job! 👏👏👏

---

📝 Describe the Change

This PR documents improved behaviour when handling volume mount configuration defined in both a self-hosted PCG cluster and the OS layer of a cluster profile.

---

💻 Changed Pages

• Release Notes

---

🎫 Jira Tickets

PCP-5982

[github-actions]

🤖 Netlify configured to enable preview build for branch: PCP-5982 . Subsequent commits will automatically trigger a Netlify build preview.

[netlify]

✅ Deploy Preview for docs-spectrocloud ready!

Name	Link
🔨 Latest commit	23dd4ce
🔍 Latest deploy log	https://app.netlify.com/projects/docs-spectrocloud/deploys/698b6dd2fe8e3d00085d4e76
😎 Deploy Preview	https://deploy-preview-9517--docs-spectrocloud.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[github-actions]

✅ Slack reviewers notified at 2026-02-10T14:29:55Z \n