Re: how do I enable the Semphore - for oracle installation ?

Dave A wrote:

> While others have addressed the original questions, I did want to address
> the shminfo_shmmax parameter. The Oracle documentation incorrectly states
> that this parameter *has* to be set to 4 gig. Thinking about this for even
> a second it becomes immediately obvious that this cannot be true. Even
> Oracle support seems to think this is true. I called about a down
> production system and one of the questions they asked me was what the value
> of the settings in /etc/system were. I told them that I have shminfo_shmmax
> set to 440mb, rather than 4 gig.
>
> Their response was that my database was then unsupported and they could not
> help me until I changed the value to 4gb!
>
> My reponse to them was to have them justify to me why the value needs to be
> anything larger than just large enough to accomodate the SGA. They could
> not and they backed down, admitting that this value only needs to be large
> enough for the SGA.
>

How could it be set that large if there isn't that much memory? In general I typically always go with a shmmax figure that is around 80% of physical memory. Received on Tue Oct 17 2000 - 08:21:24 CDT