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The following list of operator accounts were create is the Online cluster:
Account Group
calo_oper calo
muon_oper muon
ot_oper ot
rich_oper rich
st_oper st
trg_oper trg
tfc_oper online
velo_oper velo

The purpose of these accounts is to run processes that can be controled by multiple users. For software installation there are two possibilities: install everything as the group operator or install as a normal user make sure the necessary permissions are given for your group.

The login is disabled for all operator accounts on Linux/Windows. Please find below usage examples on both platforms:


Starting tasks
There are two possibilities for starting a task as the group operator:

  • Using the runas command. Example:

1. Open a windows shell:

    Press start->run
    Type "cmd" and hit enter
2. Start the application:
    runas /user:<operator username>@LHCB <application>

  • Using the impersonator application command.
This is a utility application that allows an interface to the runas windows executable. It allows using a graphical interface for starting application, allows saving application parameters, saves the operator passwords. It should be the default way to use operator accounts. To start impersonator press:
start->programs ->impersonator 

Terminating tasks
For terminating tasks the taskmgr or the tasklist, taskkill utilities can be used:

1. Open a windows shell:

    Press start->run
    Type "cmd" and hit enter
2. Use the windows command line utilities tasklist and taskkill. Example:
   runas /user:<operator username>@LHCB tasklist -V # prints all user tasks and pids
   runas /user:<operator username>@LHCB taskkill /PID <task pid>

Note: An extended version of the task manager was installed on all windows machines in the pit to extend the functionality of the normal taskmgr. -- RaduStoica - 21 Sep 2007

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Topic revision: r3 - 2007-09-26 - RaduStoica
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