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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Sun Solaris 2.6/5.6, Oracle 8.0.6 and SHMMAX
Where are you getting your 'value recommended by Oracle' from? According to
the installation guide (for 8.1.5, but I'm sure that it is similar on 8.0),
SHMMAX should be set to 0.5 * (physical memory present in machine) - in your
case, 512Mb. I suspect that if you try to run an SGA bigger than physical
memory, you are in for a whole world of pain with paging and swapping.
Regards
David Lord
Senior DBA, Axis Resources, Cardiff.
> -----Original Message-----
> From: S. Anthony Sequeira [mailto:Sequeira_at_lineone.net]
> Sent: 04 July 2000 23:04
> To: Multiple recipients of list ORACLE-L
> Subject: Sun Solaris 2.6/5.6, Oracle 8.0.6 and SHMMAX
>
>
> Hi,
>
> 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
> --
> S. Anthony Sequeira
>
> Wait for the ricochet
>
> Opinions expressed herein are my own and do
> not necessarily represent those of my employer
>
>
>
> --
> Author: S. Anthony Sequeira
> INET: Sequeira_at_lineone.net
>
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