Cannot convert the (VUM) Baseline cluster to vLCM single image cluster in SDDC.

Products

• VMware vSphere ESXi
• VMware vCenter Server 8.0
• VMware SDDC Manager

Issue/Introduction

 

1. vCenter server which are managed by SDDC Manager should NOT be transitioned from vSphere Lifecycle Manager Baselines (VUM) to vSphere Lifecycle Manager Images (vLCM) directly via vCenter UI / APIs. 
2.  The only supported method for transitioning from VUM to vLCM is by first creating a temporary cluster on vCenter Server 8.0.2 or later and then following the remaining steps outlined in the reference article below.

• Reference:
  • Transition to vSphere Lifecycle Manager (vLCM) Images using SDDC Manager
  • Prerequisites for Transitioning to vSphere Lifecycle Manager Images

Note: This transition is only supported on  5.2.2 and later SDDC.

     3. While attempting to create the temporary cluster using a single image extracted from a host, the task fails at 5% with the following error:

• • A failure occurred when starting extract image task on host 'ESXi-hostname': Another task is in progress. Please retry later.","id": "com.vmware.vcIntegrity.lifecycle.HostSeeding.TaskError"

• Right click on the datacenter, select New Cluster
• Select check Box for "Manage all hosts in the cluster with a single image".
• Choose the option "Import image from an existing host in the vCenter inventory".
• After pressing  Next icon, select any host from the list in the inventory.

Environment

SDDC 5.2.2

VMware vCenter server 8.0.U3 

VMware vSphere ESXi 8.0.3 

Resolution

1.Check for all currently running or existing tasks on the ESXi host using the command:

• vim-cmd vimsvc/task_list

2. If all tasks in the list appear to be completed, check the settingssd.log and verify the conflicting task_id against the one found in the lifecycle.task file.

3. Move the conflicting task-sync file to a different directory to resolve the contention. The file is located in /var/vmware/lifecycle.

• File location and contents example:

  • /var/vmware/lifecycle
    total 1420
    drwxr-xr-x    1 root     root         #####Month date  
    drwxr-xr-x    1 root     root        ##### Month date year  ..
    drwxr-xr-x    1 root     root        #####Month date time hostSeed
    -rw-r--r--    1 root     root            Month date timelifecycle.task
    -rw-r--r--    1 root     root            Month date Year task-status.json
    -rw-r--r--    1 root     root         ##### Month date Time task-status.json.db

• Command to move the file:

  • mv lifecycle.task /var/core

4. Retry to create a cluster from existing host.