Comments on: Change SHMMAX without rebooting

By: Nilesh Joshi

Nilesh Joshi — Wed, 02 Sep 2009 06:24:12 +0000

I tried with above procedure and I too failed to get success here. after performing change throgh mdb when I do sysdef |grep -i shmmax it shows me the original value rather it should show me the modified value. anybody who has got success on this procedure? Please get in touch with me on my email ID - nileshjosh@gmail.com with answer.

Thanks!
~Nilesh

By: David Esquivel

David Esquivel — Thu, 20 Aug 2009 22:46:59 +0000

I tried this and didn't work for me. i can see the value is changed within mdb but when you run 'sysdef |grep -i shmmax' you get the original value.

To check this, i lowered it to 1 tenth of the original value and oracle started with no problem at all, the total sga was like 2G, while the shmmax value was set to 256M in mdb.

i think i'm gonna need to reboot the server. DAMN!

thanx anyway.