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Scale Up#

Scaling Up a vSAN

Standard Operating Procedure Required

Please review the complete vSAN Scale Up SOP for comprehensive preparation, execution, and verification procedures.

To scale up a vSAN, follow the steps below. However, before proceeding, ensure that your current vSAN has at least 30% free capacity.

Important

  • All drives in a tier must be alike. If a drive of an incorrect size is added to an existing tier, the tier will only be able to use the space of the smallest drive.
  • Ensure that your vSAN has at least 30% free capacity unless you are doubling the capacity. If the free space is less than 30% and you are not doubling the drive count, consider scaling out by adding a node or opening up a support ticket for assistance.

Related Documentation

Required Reading: The vSAN Scale Up Standard Operating Procedure contains essential preparation, verification, and troubleshooting steps that must be completed before and after this scale up process.

Steps to Scale Up

  1. Physically add the drives or Fiber Channel LUNs on the node you want to scale up.

  2. Log in to the host system's UI and select the appropriate cluster you want to scale up from the top compute cluster section on the home page.

  3. Select the node that you are scaling up.

  4. Refresh the system to recognize the new drives: - Select Refresh from the left menu, and choose Drives & NICs from the dropdown. - Confirm by selecting Yes.

  5. Select the Scale Up option on the left menu.

  6. The page will now show the newly inserted drives in an offline state. Select the drive(s), then under Node Drives, select the Scale Up function.

  7. Select the appropriate tier for the drive(s) and submit.

Upon completion, the screen will refresh and the drives will disappear from the view. Go back to the main page, where you will see the vSAN tiers change color to yellow, indicating that it is in a repair state. This is expected, and the vSAN will return to a green/healthy state after a few minutes, showing the newly added tier or increased space on an existing tier.

Repeat these steps for each node as necessary.

Document Information

  • Last Updated: 2025-07-27
  • VergeOS Version: 4.13