What are all Services VBDA and BMA services on HP UX

[Mazumdar]

HI,
I am seeing lots of CPU is occupyied BMA and VBDA services . Can i know what are all these services.

[Arunvijai_4]

HI,

Can you post the output of,
UNIX95= ps -ef -o pcpu,pid,ppid,ruser,args | sort -nk1

-Arun

[Mazumdar]

Here the output in attachment

[Pete Randall]

Those are both OmniBack (or DataProtector nowdays) processes:

# ll /opt/omni/lbin/bma /opt/omni/lbin/vbda
-r-x------ 1 root sys 1728512 May 7 2003 /opt/omni/lbin/bma
-r-xr-xr-x 1 root sys 462848 May 7 2003 /opt/omni/lbin/vbda

Either you're running some sort of backup process or OB is doing DB maintenance. They should go away eventually.


Pete

[Mazumdar]

is there any known method by which we can reduce the CPU utilization of these services to minimal .

[Indira Aramandla · Accepted solution]

Hi Mazumdar,

As Pete mentioned, BMA and VBDA are Data protector process. They are initiated for Media agent and Disk agent process, when a backup starts. Once the media agent had completed i.e when the media (tape) of the particular pool defined in the backup specification is found and loaded into the drive, the BMA process ends. Then the VBDA process initiates the Disk agent and when the backup is completed, this process end.

If you have this process still on and there is no backup happening, then may be Data protector / Omniback was shut down and these process are still hanging.

These are the only process of Dataprotector/Omniback runing (crs, rds and mmd) when the are no backups happening. You can check these with ps -ef | grep omni or using the below status command.

If there are no backups occurring, then you can shutdown the Dataprotector/Omniback process, using the following.

To stop enter as root
/opt/omni/sbin/omnisv.sh -stop

To start enter as root
/opt/omni/sbin/omnisv.sh -start

To check the running status of the OmniBack/ dataprotector daemons enter as root
/opt/omni/sbin/omnisv.sh -status


Indira A

[Bill Hassell]

If you were to reduce the CPU (and disk) time for these OmniBack/DataProtector processes, then your backup may take from 5 to 10 times longer to complete. Modern tape drives require a lot of disk I/O and depending on the options you used to run the backup, CPU time will be quite high. The fix is to stop the backup and run it another time when your system is idle.

[Mazumdar]

Happy with Answer.Thank you all for the detailed clarification.