Background

These instructions describe the procedure to safely reboot the DEIMOS host computers. It does not cover rebooting the CCD crates. It requires the assistance of a sysadmin to perform the reboots.

Procedure

Stop the keyword history service (keygrabber) by support astronomer
IMPORTANT NOTE: Performing this initial step is critical, otherwise keygrabber will make the traffic service crash after the servers have been rebooted.
- Log into vm-history-1 as user kics.
- deimos_keygrabber stop
- If the above does not work deimos_keygrabber stop!
Reboot keamano by sysadmin
- Log into keamano as user root.
- Issue command to reboot system.
- Wait for boot sequence to complete.
Reboot polo by sysadmin
- Log into polo as user root.
- Issue command to reboot system.
- Wait for boot sequence to complete.
Monitor reboot on an HQ machine by support astronomer
- Log into hamoa as user dmoseng.
- ping_check polo
- ping_check keamano
Restart rotator software by support astronomer
- Log into keamano as user kics.
- Issue commmand deirot stop.
- Issue commmand deirot status; check output to confirm that all processes are dead.
- Issue commmand deirot start.
- Issue testAll command from dmoseng@polo and verify that rotator processes are healthy.
- If they are not up after 60 sec, repeat previous steps.
Test services are all up by support astronomer
- Log into polo as user dmoseng.
- Execute the command testAll and verify that all services are OK.
Start the keyword history service (keygrabber) by support astronomer
- Log into vm-history-1 as user kics.
- deimos_keygrabber start