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Shifter Instructions » History » Version 5

Martin Frank, 11/14/2013 09:43 AM

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h1. NDOS Shifter Instructions
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h2. Starting the Trigger
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*Here is how you start the trigger processes on the buffer nodes:*
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*1. Click on the "DDT Manager" icon on the same display as NDOS Run Control:*
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!ddt_icon.png!
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*2. The following manager should pop up (you might have to scroll around the display to find it):*
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!ddt_all_stopped.png!
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*3. Click the "Start Group" button to start all of the processes and when they are all running it should look like this:*
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!ddt_all_running.png!
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h2. Stopping the Trigger
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1. Click the "Stop Group" button:
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2. After everything is stopped, all of the buttons should be pink:
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3. You can now safely exit the DDT Manager by clicking File -> Exit.
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h2. Recovering a Trigger
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Occasionally a trigger process might die, so you can recover it as follows:
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1. Send an email to novaddt@fnal.gov telling us which trigger process died.  For example, trigger process 002 died here:
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2. Right-click on the dead process and click "Start Process":
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3. Everything should be green again.
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4. If the process dies more than twice in an hour, do not restart it again and notify us via email.