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1. Restarting the GDA

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- If GDA servers not starting after Xanes mapping: restart Processing Consumer (Synoptic: Hardware Status: click on proservcontr next to Processing Consumer...on dialogue that opens click restart).

- If the Client does not start (usually you get an error dialogue box for this) then reset it in the command window by typing gdaclient --reset

-If after starting GDA you don’t have the correct stage in Detectors (eg T1 X-Y) then restart GDA Client.

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Because the live microscope view VMA is related to the default stage T1, if you are using T3 then restarting GDA will default to the wrong VMA. To load the correct VMA(T3) go to:

Window: MJPEG Streams and open VMA(T3). This opens a camera screenshot on which you want to click on the very last icon : Create live view from live stream

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To start GDA: From Activities choose a terminal from the proposed icons and type gdalog, then open another terminal where you type gdaservers. Once you see the message that servers have started type on the same terminal gdaclient.

In recent GDA versions there are two Clients, one is for running measurements and the other for microscope and stage control and for setting the energy. When exiting GDA you need to exit both clients, and even then, the command window where you would re-type gdaclient will be very slow in returning the command prompt. To force GDA exit, press Ctrl+C on the command window and the prompt will become available. Alternatively you can start another session of gdaclient on a fresh terminal.

NB: If the command 'gdaclient' in I18 doesn’t open both clients then you manually start the missing one by opening a new terminal window and typing 'mainclient' to get the GUI with Experiment, Plot and Mapping perspectives or 'synopticclient' to get the VMA stream and live controls.

If the Client does not start at all (usually you get an error dialogue box for this) or if you are not getting all the perspectives looking as they should then reset it in the command window by typing gdaclient –reset. This will force some stuff to go back to default so only use it if you need to (so perhaps trying to start the client for a second time before you resort to resting is a good idea).

2. Mapping won't start /stop

• Map not starting (try a couple of times and then):

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