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Bound beta decay experiment on Tl-205

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Message ID: 9 Entry time: Tue May 28 08:36:14 2019

Author:	Jan
Category:	DAQ
Subject:	MBS start & RFIO server

You need a DAQ-PC and the RIO crate computer.
All of the DAQ proceedures laid out here are operated from inside the DAQ screen session.
Right now for e121 the following DAQ-setup is used: (might change in the future)

DAQ-PC: lxg0155
screen session: e121_daq @ lxg0155
RIO: r4l-47
DAQ dir: /esr/usr/litv-exp/2019Munich-Det

The most important commands:

on DAQ-PC
mbs - start mbs DAQ
rawDispRFIO64 - start RFIO server

in MBS shell
@startup - initialize MBS (only inside DAQ dir)
@connect - connect RFIO server (only if server running)
@runstart - open file for data writing
@runstop - close file
start acq - start DAQ
show acq - status of DAQ
show file - status of current file/RFIO server

The full proceedure for the DAQ:

on DAQ-PC enter screen session:
```
litv-exp@lxg____:~$ screen -x e121_daq
```
or create new screen session if non is exisiting:
```
litv-exp@lxg____:~$ screen -S e121_daq
```
inside screen: go to 1st tab (MBS) and login to RIO if not yet done:
```
<Ctrl-a 0>
litv-exp@lxg____:~$ ssh r4l-47
```

on RIO reset and start MBS

R4L-47 litv-exp > cd 2019Munich-Det
R4L-47 litv-exp > resl
R4L-47 litv-exp > mbs
mbs > @startup

inside screen go to 2nd tab (RFIO)
```
<Ctrl-a 1>
```
or create 2nd tab if not exisiting
```
<Ctrl-a c>
```

start RFIO server on DAQ-PC

litv-exp@lxg____:~$ cd /u/litv-exp/rfio
litv-exp@lxg____:~$ ./rawDispRFIO64-wheezy
-I- 64 bit RFIO test server (lxg0155) listening on port 1974
    forks './rawServRFIO64-wheezy' for each client request

inside screen go to 1st tab and connect MBS to RFIO server

<Ctrl-a 0>
mbs > @connect
mbs> show file
mbs> -R4L-47  :transport  :Name of output device = RFIO
-R4L-47  :transport  :current tape label    = lxg0155 , opened
-R4L-47  :transport  :current file name     =  , closed
-R4L-47  :transport  :       0.000 MBytes written to tape
-R4L-47  :transport  :       0.000 MBytes written to current file

start acquisition

mbs > start acq
mbs > show acq
...
-R4L-47  :util       :Name of output device = RFIO
-R4L-47  :util       :RFIO server  lxg0155, file CLOSED
-R4L-47  :util       :       0.000 [MB] written to tape,        0.000 to file
-R4L-47  :util       :--------------------------------------------------------------
-R4L-47  :util       :Collected:    61.1451 MB,    1866 Buffers,     131990 Events.
-R4L-47  :util       :Rate     :         33 KB/s,     1 Buffers/s,       71 Events/s
-R4L-47  :util       :--------------------------------------------------------------

open file / start a run

mbs > @runstart
-R4L-47  :transport  :open   file at server lxg0155::
-R4L-47  :transport  :/data.local1/E121/predata/e121_run_1239.lmd

close file / stop a run

mbs > @runstop
-R4L-47  :transport  :Rfio server lxg0155: closed file after      0.262 MB written:
-R4L-47  :transport  :-I- remote output file /data.local1/E121/predata/e121_run_1239.lmd closed
mbs> -R4L-47  :transport  :/data.local1/E121/predata/e121_run_1239.lmd

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