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тАО08-04-2006 05:46 AM
тАО08-04-2006 05:46 AM
Oracle - Additional memory not able to be used
Thanks,
Dennis
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тАО08-04-2006 05:50 AM
тАО08-04-2006 05:50 AM
Re: Oracle - Additional memory not able to be used
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тАО08-04-2006 03:26 PM
тАО08-04-2006 03:26 PM
Re: Oracle - Additional memory not able to be used
Which command are you using to grow cache size?
Are you trying to do this online?
If you are trying to do this withou stopping/starting database, this parameter is limited by SGA_MAX_SIZE.
Regards,
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тАО08-04-2006 03:58 PM
тАО08-04-2006 03:58 PM
Re: Oracle - Additional memory not able to be used
The real fix is running 64-bit on a Unix box using large pages. :-)
Your best bet is probably to boot with the /3GB modifier.
Alternatively you can have Windoze + Oracle do teh adress extention bit and look at a big SGA through windows in low address space.
Check out pages like:
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx
Google for Oracle, Windows, SGA, 3GB and such for more info.
Enjoy,
Hien.
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тАО08-04-2006 06:05 PM
тАО08-04-2006 06:05 PM
Re: Oracle - Additional memory not able to be used
Again, this is an Operating system issue - Windows 2003. Unless you specify that there is more than 2GB RAM during bootup, the additional 2GB cannot be used.
The /3GB and /PAE switches in the Boot.ini file is normally used.
The /3GB switch functionality lets device-driver developers test their drivers in this configuration without having to install one of the Windows Server 2003 products just listed. The user-mode memory space is now limited to 3 GB.
The /PAE switch lets developers perform similar testing of device drivers by forwarding 64-bit addresses to kernel-mode components. This feature is known as Physical Address Extension (PAE), and it may not work on all chip sets. Any addresses that are over 32 bits are guaranteed to work by using the /nolowmem switch from the Boot.ini file that discards the lower 4 GB of memory.
Caution: Also note that the /3GB switch can cause some applications to have problems that are related to address dependencies or to a reduction in kernel space.
see the microsoft site for more information on how to configure your system
http://support.microsoft.com/kb/291988/
kind regards
yogeeraj
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тАО08-07-2006 07:12 AM
тАО08-07-2006 07:12 AM
Re: Oracle - Additional memory not able to be used
First, I simply saw the forum topic and posted the question. Also, I forgot to say that the additional memory was recognized the by system my apology for leaving that out. But, Julio answer about the SGA_MAX_SIZE was the issue. Thanks again for the responses.
Clay:
Sometimes we don├в t get to chose and decisions are made for us, but if I were really look for that primitive, archaic, and plague prone OS then I might take VMS over all!
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тАО08-07-2006 07:17 AM
тАО08-07-2006 07:17 AM
Re: Oracle - Additional memory not able to be used
Dennis