2863626 - vsystem pod failed to start with error 'start-di failed with ResourceRequest timed out|vsystem-xxx-xxx'

• The problem happens after SAP Data Hub is upgraded to 2.7.
• Vsystem is down with following error message:
  -------------------------------------------------------------
  |+0000|INFO |Starting app in direct exec mode|vsystem-xxx-xxx
  |+0000|INFO |Get HANA credentials from environment for direct execution|vsystem-xxx-xxx
  |+0000|INFO |Got hana-credentials from environment|vsystem-xxx-xxx
  |+0000|INFO |Starting the diserver on the HANA database...|vsystem-xxx-xxx
  |+0000|ERROR|start-di failed with ResourceRequest timed out|vsystem-xxx-xxx, just checking it
• Restart hana-0 pod and it's failed with error below (log of hana-0 pod):
  -------------------------------------------------------------
  Finished execution of hook /hana/hooks/pre_start/330_custom_afls (exit code 0)
  Finished execution of hooks in folder /hana/hooks/pre_start
  Finished pre start sequence
  Starting up HANA ...
  Waiting for HANA to finish start up ...
  ERROR: Unexpected shutdown of hdbdaemon detected. HANA did not come up :-/ ...
• check hana-0 filesystem with the following command: 'kubectl exec -it hana-0 -n <DataHubNamespace> -c hana -- df -h /hana/mounts/trace', it shows trace disk got full.
  -------------------------------------------------------------
  df -h /hana/mounts/trace
  Filesystem      Size  Used Avail Use% Mounted on
  /dev/xxx        xx G  xx G     0 100% /hana/mounts/trace
  
  

• SAP Data Hub 2.7 

start-di, hana-0, hdbdaemon , KBA , EIM-DH , SAP Data Hub: Please use CA-DI instead. , Problem