Anne Moore wrote:
> <<customers have run multiple instances of Oracle in a single Solaris
> instance, even without zones.>>
> 
> That's probably because they have massive amounts of memory installed.
> Unfortunately, we don't. 

I doubt it. If Oracle is taking 1/2 of physical memory by default, it 
will probably do so whether you have 4GB or 40GB.

> 
> I can't find any Oracle experts who know how to tune the memory
> requirements... ugh. In fact, the one's I have spoken to don't know if it's
> even possible.

page 94 of http://www.sun.com/blueprints/0505/819-2679.pdf has tunables 
for Oracle 9.

> 
> Thanks for your response.
> 
> Anne
> 
>  
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Steffen Weiberle
> Sent: Sunday, March 16, 2008 9:48 AM
> To: zones-discuss@opensolaris.org
> Subject: Re: [zones-discuss] can non-zones see less RAM than global?
> 
> Mike Gerdts wrote:
>> On Sat, Mar 15, 2008 at 8:22 PM, Gael <[EMAIL PROTECTED]> wrote:
>>
>>> Mike,
>>>
>>> The OS will still display the whole amount of RAM with these RM 
>>> entries ... You cannot use it, but the installation scripts and other 
>>> tools using the usual OS command will still see the real RAM and 
>>> configure their stuff as is ...
>>>
>>> Sun Microsystems Inc.   SunOS 5.10      Generic January 2005
>>> # prtconf
>>> System Configuration:  Sun Microsystems  sun4u Memory size: 1536 
>>> Megabytes System Peripherals (Software Nodes):
>>> prtconf: devinfo facility not available #
>> When I did testing on Nevada (not S10) vmstat gave results that were 
>> in line with the resource controls.  I did notice that df would report 
>> an improperly large size for /tmp, which is another problem.  Your 
>> results suggest that prtconf or the underlying system calls also need 
>> to be updated to reflect memory resource controls.
>>
>> I would guess that any of the parameters that Oracle is going to set 
>> based upon RAM size can be hand-tuned after the installation.
> 
> I would think that you can tune the size of Oracle, probably dominated by
> the size of the SGA, even before you install/configure. unless there is
> something new Oracle is doing.
> 
> Customers have run multiple instances of Oracle in a single Solaris
> instance, even without zones.
> 
> I am not a DBA, otherwise I would offer tuning parameters.
> Steffen
> 
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> 
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