FAQ
We've been having ORA-04030 instance crashes every 3-5 weeks since
moving from 8.1.7 on NT to 10gR2 on a more powerful server, and Oracle's
first recommendation is to use this switch but MS says it's not supported.

Does anyone have experience using this switch with the Standard Edition
of 2003 in a production environment?

"Caution: Microsoft supports using the /3GB switch in Windows Server
2003, Standard Edition in a production environment for use by Active
Directory. For other applications, Microsoft supports using the /3GB
switch in Windows Server 2003, Standard Edition only in a production
environment if the application vendor has tested in this environment and
if the vendor is willing to support the customer who is using this
functionality."

--

Sincerely,
Michael Ray
Topshot Systems LLC
--
http://www.freelists.org/webpage/oracle-l

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  • Niall Litchfield at Jun 16, 2006 at 2:33 pm

    On 6/16/06, Michael Ray wrote:
    We've been having ORA-04030 instance crashes every 3-5 weeks since
    moving from 8.1.7 on NT to 10gR2 on a more powerful server, and Oracle's
    first recommendation is to use this switch but MS says it's not supported.

    Does anyone have experience using this switch with the Standard Edition
    of 2003 in a production environment?

    "Caution: Microsoft supports using the /3GB switch in Windows Server
    2003, Standard Edition in a production environment for use by Active
    Directory. For other applications, Microsoft supports using the /3GB
    switch in Windows Server 2003, Standard Edition only in a production
    environment if the application vendor has tested in this environment and
    if the vendor is willing to support the customer who is using this
    functionality."
    You'd obviously want to confirm with Oracle via a tar that they will
    support you, in principle however they do. If your new more powerful
    server is 64bit you may wish to read Note 370466.1.

    We found that we had great success using SGA_TARGET/MAX_SIZE and
    especially PGA_AGGREGATE_TARGET to allow Oracle to allocate memory to
    user threads on windows.
  • Michael Ray at Jun 16, 2006 at 2:43 pm

    Niall Litchfield wrote:
    On 6/16/06, Michael Ray wrote:

    "Caution: Microsoft supports using the /3GB switch in Windows Server
    2003, Standard Edition in a production environment for use by Active
    Directory. For other applications, Microsoft supports using the /3GB
    switch in Windows Server 2003, Standard Edition only in a production
    environment if the application vendor has tested in this environment and
    if the vendor is willing to support the customer who is using this
    functionality."
    You'd obviously want to confirm with Oracle via a tar that they will
    support you, in principle however they do. If your new more powerful
    server is 64bit you may wish to read Note 370466.1.
    I am already awaiting their response on that. :) We were going to do
    64-bit until we realized the standby had to be 64-bit as well so
    everything is 32.
    We found that we had great success using SGA_TARGET/MAX_SIZE and
    especially PGA_AGGREGATE_TARGET to allow Oracle to allocate memory to
    user threads on windows.
    You'll see some of this on my other thread. They did not want me to
    fiddle with PGA_AGGREGATE_TARGET, which is 400MB, just with SGA_TARGET,
    which currently equals SGA_MAX_SIZE. I need to figure out how to
    effectively reduce it because my min size currently required is just
    12MB below the target. I'm awaiting their response, but thought I would
    ask the real experts also.

    --

    Sincerely,
    Michael Ray
    Topshot Systems LLC
    --
    http://www.freelists.org/webpage/oracle-l

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