SAP not starting up

[Dennis Handly]

>will check the shared memory (ipcs -m) to see if the shared memory is released or not.

There are 3 states for shared memory:
1) memory being used, NATTACH != 0
2) memory not used, NATTACH == 0
3) memory segment removed.

If you have NATTACH == 0, you might want to know when the last use was. You can use my program attached to this thread to give you the date:
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1136341

>if it is problem with releasing of shared memory, how can we overcome it

Well, you just don't use kill -9. You must shut things down normally.
If you are doing it correctly, this is an application bug that must be fixed.

[Yogeeraj_1]

hi again,

> We will be carrying out the activity to stop/start sap/oracle this weekend to find the root cause without the need to reboot the server.

I would also suggest that you review your startup/shutdown script for both SAP and Oracle. It seems that the flaw lies there. As Dennis mentioned above, it may be that the application/database software are not being properly shutdown.

just some thoughts....

kind regards
yogeeraj

[YAQUB_1]

Hi Ashish,

Can U send me Ur system "kmtune" O/P, I will cross check Ur kernel value. If needed I will send U new value which one U change and why?

Thanks--Yaqub
HP Support!!!

[AL_3001]

Thanks.