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To run a VLBI experiment, a number of independent programs need to be run. This include a program to control the telescope and IF setup, controlling the DAS and the LBADR disk recorder.
The DAS is controlled by a gui. Log onto the machine running the DAS control and run
> das1 &
> das2 &
A gui is needed to control each DA individually. For each experiment determine which DAS profile is needed (the wiki guesses the profile, but this is not guaranteed to be correct).
File→Loadmenu item, then selecting the correct profile in the file browser.
IF Level status bar. The this should be roughly mid range. If it goes of of range the DAS gui will complain and the attenuation (or catie gain at ATCA) will need to be adjusted.
The LBADR is a disk based recorder based around a standard PC. Data is recorded usually to external Xserve RAIDs, but can also be recorded to removable IDE disks or internal disks.
There is no need to shutdown the host PC to change Xraid disks. The following steps are needed to swap disks
> df | grep xraid\\
> umount /data/xraid0 (for example, do all mounted disks)
> mount /data/xraid0 etc
> /etc/init.d/recorder_server restart
|Default Recorder||DAS control|