Upgradation from 2.6.0.1 to 2.6.0.3 failing

Hi

Appliance 5230 upgradation from 2.6.0.1 to 2.6.0.3 is failing with below error:

 Install SYMC_NBAPP_update-2.6.0.3-1.x86_64.rpm
- [Info] Comparing the currently installed version with the target version.
Verify whether the software update, SYMC_NBAPP_update-2.6.0.3-1.x86_64.rpm has been installed on compute node, phusmb-sp300007. ... ok
- [Error] Unable to gather backup job summary information. This may indicate that some processes are not running and that you should restart your appliance.
- [Info] The software upgrade has been aborted!
 

steps I follow before upgradation:

1. I used bp.kill_all and bp.start_all before upgradation

2. suspend scheduling before upgradation

3. no jobs were running before upgradation.

Pls provide solution.