Re: Sun Solaris 2.6/5.6, SHMMAX and physical RAM

"S. Anthony Sequeira" <Sequeira_at_lineone.net> wrote in message news:8jtn9a$hk2$1_at_supernews.com...
> Hi,
>
> I realise that this is Sun specific, but this is the group I read
> regularly, so hope to get an answer here.
>
> I have come in to a site where Oracle 8.0.6 is installed on a
> Sun
> Solaris (2.6/5.6) machine with 1GB RAM 2GB swap.
>
> The SHMMAX kernel parameter is set to 25% of the value recommended
> by Oracle.
>
> The customer claims that when they set it to Oracle's recommended
> value, it refused to boot (the kernel panicked). They also claim that
> they were told by Sun support that Oracle's recommended value
> (approximately 4GB), is too large for a machine with only 3GB memory
> (including swap).
>
> I am sure that I have managed to set this parameter to Oracle's
> value on machines with less memory than this one, but I may be wrong.
>
> Any comments?
>
> TIA.
>
> Tony

   Hi,

    To summarise response. These were split about 50/50 for and against. I have an open TAR with Oracle support, but nothing from them yet.

    I had a reply from one sysadmin who had it set to 4GB with only 256 MB of physical RAM.

    My conclusions are, set it to physical RAM (including swap), up to a maximum of 4GB, on 32 bit machines.

    Anyone feels different, please let me know.

    Regards.

Tony

--
S. Anthony Sequeira

Totally committed to the fifty bucks

Opinions expressed herein are my own and do
not necessarily represent those of my employer