topic Re: startup and shutdown sequence in Operating System - HP-UX

startup and shutdown sequence

Franky Leeuwerck_1 — Wed, 23 Apr 2003 07:11:21 GMT

Hello Unix people,

We have an Ingres DBMS running on HP-UX 11.
The default run level is 3.

I added a start/stop script for starting or stopping the DBMS after/before the system startup/shutdown. The script is located in the /sbin/init.d directory.
In the /sbin/rc3.d I have a link to the script for starting up, in the /sbin/rc2.d there is a link for shutting it down.

Everything works.

My question is : if I let the DBMS startup in run level 3 (/sbin/rc3.d), why must I let it stop in run level 2.

I tried it with stopping it in run level 3 but that didn't work.

Regards,

Franky Leeuwerck

Re: startup and shutdown sequence

Michael Tully — Wed, 23 Apr 2003 07:17:02 GMT

Hi,

Have a look at the man page for init (1m). This should explain everything.

$ man 1m init

HTH
Michael

Re: startup and shutdown sequence

Donald Kok — Wed, 23 Apr 2003 07:17:45 GMT

Hi Franky,

When you go up to a runlevel, say from 2 to 3, all S* will be run in alphabetic order. When you go down a runlevel (say from 5 to 3, or from 3 to 2) all K* scripts are run.

So you want to have a service run in level 3, you should kill it in level 2.

Greetzz
Donald

Re: startup and shutdown sequence

Franky Leeuwerck_1 — Wed, 23 Apr 2003 07:30:48 GMT

Thanks for the quick replies.

Apparently the answer is very simple. It is the way HP-UX handles the run level transitions.

Best regards,
Franky

Re: startup and shutdown sequence

Donald Kok — Wed, 23 Apr 2003 07:46:02 GMT

Franky,
You seem to be one of the very few ingres admins around the forum. (Never met one before, all oracle). It is nice to be not alone anymore.

Maybe you like to see my start/stopscript, since CA does not deliver them.

Goodluck
Donald

Re: startup and shutdown sequence

Yogeeraj_1 — Wed, 23 Apr 2003 08:36:01 GMT

hi,

Please allow me to shared this document with you.

This document explains the system startup and configuration models. Normally, Software developers construct rc files in a different manner, specifying run-level execution order and enabling control through configuration variables. System administrators control subsystem behavior, on a per-host basis, by modifying variables that control subsystem startup and shutdown.

regards
Yogeeraj

Re: startup and shutdown sequence

Yogeeraj_1 — Wed, 23 Apr 2003 08:38:38 GMT

hi,

Please allow me to share this document with you.

This document explains the system startup and configuration models. Normally, Software developers construct rc files in a different manner, specifying run-level execution order and enabling control through configuration variables. System administrators control subsystem behavior, on a per-host basis, by modifying variables that control subsystem startup and shutdown.

The run-level paradigm and naming conventions are properly illustrated here. Has helped me a lot.

regards
Yogeeraj