"How to" for DAQ
This "How to" is assuming you are working in the DAQ.
How to Start the DAQ?
In the DAQ,
~$cd digios/daq daq$./heliosCommander
If you are in the MAC, ssh to the DAQ by
Please read the guide : Check the Guide for DAQ
The guide is kind of old, but the essential is there.
How to start the Database program ?
on the HELIOS commander, there is a button "Database" on top of the button "Stop"
How to deal with Buffer alert?
Usually, the buffer is low when there are too many triggers and cannot flush the data to the DAQ.
In many cases, the Database program will check the buffer level, if any VME buffer level is smaller than 300, the ACQ will be stooped for 30 sec and resume automatically.
How to Set Trigger?
anywhere>SetTrigger [VME] [DIG] [Plane]
There are two triggers, called X-Plane and Y-Plane, it has nothing todo with plane or beyond my imagination. .
when IOC switch off suddenly, what should I do ?
stop the run, wait for few minutes, start again.
if this keeps happening, reboot the DAQ.
How to pushing Grafana screenshot to ANL web page?
How to Setup Globus connection, Sound Alarm, and Auto-Screenshot Capture ?
How to mount a new Hard Disk
Suppose the Harddisk appeared on /dev/sdd
and you wish to mount to /mount/DIGIOSDATA6
and the HD is formated as ext4
the commmand to mount is:
sudo mount -t ext4 -o rw /dev/sdd /mount/DIGIOSDATA6
if you mount as
sudo mount /dev/sdd /mount/DIGIOSDATA6
the HD is only read but NOR write.
Auto mount Harddisk at startup
have to edit the file /etc/fstab
to see all the disk detected
sudo fdisk -l
here is an example output
$sudo fdisk -l Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes 255 heads, 63 sectors/track, 364801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000 Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00034493 Device Boot Start End Blocks Id System /dev/sda1 * 1 256 2048000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 256 13004 102400000 83 Linux /dev/sda3 13004 23840 87040000 83 Linux /dev/sda4 23840 60802 296897560 5 Extended /dev/sda5 23840 26899 24576000 82 Linux swap / Solaris /dev/sda6 26900 60802 272319488 83 Linux Disk /dev/sdc: 6001.2 GB, 6001175126016 bytes 255 heads, 63 sectors/track, 729601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x00000000
You can see, we have
/dev/sda /dev/sdb /dev/sdc