Australia Telescope Compact Array

Rebooting ATCA On-Line Computers

This document describes how to reboot operational computers at the ATCA

NOEL

On the NOEL console (in the Computer Room),

If you have the >>> prompt, on the NOEL console (in the Computer room),
- Type: >>> b
Failing this, you may need press the small button (approx 4mm square) that is under the small panel on the front of the CPU box.
If all else fails, power cycle the CPU.

If you need to shut NOEL down:

Log into NOEL on the console as OPER (no password required)
This will launch you into the shutdown process. Answer almost all questions with a <CR> to accept the defaults.
The exception is the "Shutdown options" question, answer:

PERICLES

Pericles is the linux PC in the Control Room that is usually used to display the observing windows.
After powering up, you need to:

login (as observer - the password is in the experts guide.)
type > startx

To display NOEL displays,

Create a xterm (with the mouse)
Type xhost + noel.atnf.csiro.au (You need to explicitly enter the full machine name!)
Telnet into noel.atnf.csiro.au (again as observer.)
On this noel display, execute @at$run:start_windows
Start processes in the appropriate windows (the name will be in the window border after a <CR> in the window. Note: because of a bug in pgplot, start vis after another (e.g. winds) pgplot program.)

If NOEL has been booted, there are 5 processes that you have to start manually:

Process	Command
mp_server	@at$run:start_mp_server	- writes monitor point data
weather	@at$run:start_weather	- restarts comms with the weather station
lomon	@at$run:start_lo_mon	- restarts comms with the Phase Transfer PC (rt)
ds	@at$run:start_ds	- restarts comms with the Data Set in the PMON rack which is used to start and stop the generator
pntcom	@at$run:install_pntcom	- installs global common for reference pointing

If you need to create extra NOEL terminals:

NOEL$ set display/create/node=pericles/transport=tcpip
(equivalent to the UNIX command % setenv DISPLAY pericles:0.0)
NOEL$ create/term=decterm/detach/res=sys$logindecw$term.dat
(equivalent to the UNIX command % xterm & - the switches are needed as the VMS fontset is not supported by LINUX)

You will need log into CACCC to restart the Correlator processes.

PERICLES> xhost + caccc.atnf.csiro.au
PERICLES> telnet caccc (Login as corr)
CACCC> setenv DISPLAY pericles:0
CACCC> xterm -T caccc -n caccc & (for CACOR)
CACCC> xterm -bg goldenrod1 -fg black -bd black -fn fixed -n spd -T spc & (for spd)

Run the appropriate processes in each window.

CACCC

CACCC is the linux PC in the screened room which controlls the corralator.
In the unlikely event that it needs to be rebooted, all you should need to do is let it boot.

CACOR

CACOR, the correlator GUI is displayed on PERICLES - to generate this:

generate another pericles xterm
type > xhost + caccc
login to caccc (as corr - the password is in the experts guide)
set the display to pericles with
setenv DISPLAY pericles:0
start the correlator interface by typing > cacor
It is a good plan to put the xterm that launched CACOR behind behind the CACOR GUI - that way you can find a launcher if you have to stop and restart CACOR.
in another caccc xterm start the display process by typing > spd

ELLEN

ELLEN is a linux box in the screened room. (It is at the bottom machine in the rack under the computing work table in the north east corner of the correlator room)
After power failure, it should boot itself.
In general you require two ellen xterms on Pericles - to do this

generate another pericles xterm
type > xhost + ellen
login to ellen (as atcaobs - the password is in the experts guide)
set the display to pericles with
setenv DISPLAY pericles:0.0

Two tasks are required to be running on ELLEN for observing:

The 'atdaemon' task collects monitor data from the antennas and does other useful things.
The atcalegacyserver,

The atdaemon should be running once ellen has booted. You can ensure it is running by executing 'atdaemoncheck' in an ellen xterms. If it says 'No atdaemon is running' then you can restart the atdaemon by running the command 'atdaemonrestart'
A second xterm should run atcalegacyserver

RT

RT is the linux PC in the screened room that controls reads the does the Round Trip Phase measurements used in lomon
After the machine has booted,

login as corr (with the corr password)
type > startx
type > rt to start the program

Weather Station

CAWEATHR is a PC in the screened room that reads the weather station data and serves the information to the VAX.
If you need to restart it:

Select CAWEATHR (f not already selected) on the KVM switch machine in the screened room by using the 'print Screen' key
login as observer
press the to left arror on the following windows:
1. HTTP server
2. TCP WS
3. Remote WS
4. Weather Station

Original: Derek McKay (17-OCT-1995)
Modified: Robin Wark (08-JUN-2004)