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 Modifying snapshotLimit Post-deployment in VMware Aria Automation 8.x

https://knowledge.broadcom.com/external/article?articleNumber=389946

Issue/Introduction

In VMware Aria Automation 8.x, the snapshotLimit property defines the maximum number of snapshots allowed for a deployed virtual machine. Once a deployment is created, snapshotLimit becomes a read-only property, preventing modification via API or UI.

This article provides a workaround for increasing snapshotLimit post-deployment when the limit needs to be raised.

Environment

VMware Aria Automation 8.x

Cause

  • snapshotLimit is immutable after deployment and cannot be modified using API PATCH updates.
  • API updates return a success code but do not actually modify the snapshotLimit value.
  • Unlike other custom properties, snapshotLimit is locked in compute_state.custom_properties within the Provisioning Database.

Resolution

Prerequisites

  • Ensure you have valid backups or snapshots before proceeding.
    • Note: This procedure includes direct modifications to the underlying database. Do not proceed without backups or snapshots.


Procedure

  1. SSH into the vRA appliance and connect to the Provisioning Database:

    vracli dev psql provisioning-db

  2. Run the following command to update snapshotLimit:

    UPDATE compute_state 
    SET custom_properties = jsonb_set(custom_properties, '{snapshotLimit}', '"2"') 
    WHERE custom_properties->>'snapshotLimit' IS NOT NULL 
    AND name = 'Cloud_vSphere_Machine_1-mcm849-289474512219';

    Note: Replace "2" with the desired snapshot limit.
    Note: Replace 'Cloud_vSphere_Machine_1-mcm849-289474512219' with the actual VM name.
  3. Verify the update:

    SELECT name, custom_properties FROM compute_state 
    WHERE name = 'Cloud_vSphere_Machine_1-mcm849-289474512219';
  4. Test snapshot creation in Aria Automation.
  • Expected Outcome
    • The snapshot limit is successfully increased.
    • Snapshots can now be created within the new limit.

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