Unable to set sga_max_size parameter through spfile

My 10g db running in spfile. I am trying to decrease sga_max_size to 1024M where i have 1504 now ...
Do i am not doing in a right way ? Please suggest me
i am trying like this .....
SQL> sho parameter sga
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 1504M
sga_target big integer 0
alter system set sga_max_size =1020M scope= spfile;
SQL>system altered
SQL> sho parameter sga
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 1504M
sga_target big integer 0

SCOPE=SPFILE would not change the in-memory value. So a SHOW PARAMETER would still show the previous value.
You must compare the SPFILE before and after the ALTER SYSTEM. (Don't copy the spfile in a text editor but make a copy of the spfile to view OR use the "strings" command on Unix/Linux . If you accidentally write to the spfile with a text editor you will corrupt it. So, the best way to check the value is to run a CREATE PFILE FROM SPFILE and view the pfile which would be the initSID.ora file.

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Dear All,
I am trying to set Bios values on E31 through a VB Script using WMI in our lab. It is working on all the machines except one. It does not return an error while setting the value or saving it. But when I manually enter Setup, the values would not be set. No error is set in Event viewer.
Manually modifying the value works.
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It's odd that you've seen it work correctly on other E31 systems but fail on only this one. Is there something in the configuration that's unique to this system as compared to the other E31 systems that passed with no issue?
In the failing scenario, which value(s) are not getting set correctly?

ALTER SYSTEM SET SGA_TARGET = 0 scope=spfile; not working

SQL> ALTER SYSTEM SET SGA_TARGET = 0 scope=spfile;
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.
Total System Global Area 2121256960 bytes
Fixed Size 2243280 bytes
Variable Size 1140852016 bytes
Database Buffers 973078528 bytes
Redo Buffers 5083136 bytes
Database mounted.
Database opened.
SQL> show parameters sga
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 2032M
sga_target big integer 0
SQL> create pfile=#/home/oracle/per03pfile' from spfile;
pfile has
*.sga_max_size=0
*.sga_target=0
and
instance1.__sga_target=2130706432
instance2.__sga_target=2130706432
tried ALTER SYSTEM SET SGA_TARGET = 0 scope=spfile sid='*'; aswell ...
oracle v11.2.0.2
GI 11.2.0.2
linux 64 bit

Chinar wrote:
user9198889 wrote:
SQL> ALTER SYSTEM SET SGA_TARGET = 0 scope=spfile;
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.
Total System Global Area 2121256960 bytes
Fixed Size 2243280 bytes
Variable Size 1140852016 bytes
Database Buffers 973078528 bytes
Redo Buffers 5083136 bytes
Database mounted.
Database opened.
SQL> show parameters sga
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 2032M
sga_target big integer 0
SQL> create pfile=#/home/oracle/per03pfile' from spfile;
pfile has
*.sga_max_size=0
*.sga_target=0
and
instance1.__sga_target=2130706432
instance2.__sga_target=2130706432
tried ALTER SYSTEM SET SGA_TARGET = 0 scope=spfile sid='*'; aswell ...
oracle v11.2.0.2
GI 11.2.0.2
linux 64 bitWhile SGA_MA_SIZE <> 0 then it seems SHARED MEMORY constructed according this setting.So it is not recommended to avoid automatic shared memory management.But if you decide this then you have to identify SHARED_PLOOL_SIZE,DB_CACHE_SIZE(in additionally LOG_BUFFER and LARGE_POOL) parameter manually and
ALTER SYSTEM SET SGA_TARGET=o scope=spfile and ALTER SYSTEM SET SGA_MAX_SIZE=o scope=spfile and restart database again.SQL> alter system set sga_max_size=0 scope=spfile sid='instance1';
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup;
ORACLE instance started.
SQL> show parameters sga
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 2032M
sga_target big integer 0
SQL>
has it got todo with AMM being enabbled?

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HI,
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HI,
I'm trying to install DB2 8.2 on solaris 10.the problem i'm encountering in installation is unable to set MSGMAX and MSGMNB kernel parameters. I tried setting the new replacement parameter process.max-msq-qbytes through projects->Resource Control from the management console.but still uinable to set the parameters.
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thanx
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Unable to set kernel parameters using Reource Control

HI,
I'm trying to install DB2 8.2 on solaris 10.the problem i'm encountering in installation is unable to set MSGMAX and MSGMNB kernel parameters. I tried setting the new replacement parameter process.max-msq-qbytes through projects->Resource Control from the management console.but still uinable to set the parameters.
Can anyone help me in setting the above kernel parameters.
Its not possible to set it thru /etc/system.
thanx
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I finally had some time to find the actual syntax for tuning process.max-msq-qbytes and process.max-msg-messages. prctl will change those paramaters for an existing process.
As a proof of concept I changed process.max-msg-messages to a 64k. process 2221 is my shell.
prctl -n process.max-msg-messages -r -v 64k 2221
bash-3.00# prctl 2221
process: 2221: -csh
NAME    PRIVILEGE       VALUE    FLAG   ACTION                       RECIPIENT
process.max-port-events
        privileged      65.5K       -   deny                                 -
        system          2.15G     max   deny                                 -
process.max-msg-messages
        privileged      64.0K       -   deny                                 -
        system          4.29G     max   deny                                 -
process.max-msg-qbytes
        privileged      64.0KB      -   deny                                 -
        system          4.00GB    max   deny                                 -And now to make this persist across reboots...
So long as I'm experimenting, I'll use projadd and add a new project which just includes me and not the rest of the users in the group staff.
bash-3.00# projadd -p 115 -U testuser \
-K "process.max-msg-messages=(priv,64K,deny)" \
-K "process.max-msg-qbytes=(priv,64K,deny)" \
user.me This creates the following /etc/project:
(note the last line is all on one line in the real file minus the \.)
placer% cat /etc/project
system:0::::
user.root:1::::
noproject:2::::
default:3::::
group.staff:10::::
user.me:115::testme::\
process.max-msg-messages=(priv,64000,deny);process.max-msg-qbytes=(priv,65536,deny)After a reboot I checked the values by loging in under my user and running prctl.
placer% prctl $$
process: 419: -csh
NAME    PRIVILEGE       VALUE    FLAG   ACTION                       RECIPIENT
process.max-port-events
        privileged      65.5K       -   deny                                 -
        system          2.15G     max   deny                                 -
process.max-msg-messages
        privileged      64.0K       -   deny                                 -
        system          4.29G     max   deny                                 -
process.max-msg-qbytes
        privileged      64.0KB      -   deny                                 -
        system          4.00GB    max   deny                                 -
process.max-sem-ops
        privileged        512       -   deny                                 -
        system          2.15G     max   deny                                 -
...Solaris 10 has different tunables and default values from 8 and 9. It's default tunables should be good for most applications per a given system's hardware. There are some great blog articles, and discussions on opensolaris.org and blogs.sun.com on tuning that explain the intent of tuning and why we shouldn't have to tune.
Cheers,
~~sa

Unable to set kernel parameters using Reource Control in solaris 10

HI,
I'm trying to install DB2 8.2 on solaris 10.the problem i'm encountering in installation is unable to set MSGMAX and MSGMNB kernel parameters. I tried setting the new replacement parameter process.max-msq-qbytes through projects->Resource Control from the management console.but still uinable to set the parameters.
Can anyone help me in setting the above kernel parameters.
Its not possible to set it thru /etc/system.
thanx

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I'm trying to install DB2 8.2 on solaris 10.the problem i'm encountering in installation is unable to set MSGMAX and MSGMNB kernel parameters. I tried setting the new replacement parameter process.max-msq-qbytes through projects->Resource Control from the management console.but still uinable to set the parameters.
Can anyone help me in setting the above kernel parameters.
Its not possible to set it thru /etc/system.
thanx

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Keep SGA_MAX_SIZE parameter zero

Hi All;
Is it possible to keep SGA_MAX_SIZE parameter zero & set the SGA_TARGET to a certain value in oracle 10g.

Dear 788442,
Here is the answer to your question if you set the SGA_MAX_SIZE to 0;
http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/memory.htm#sthref1244
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Delete sga_max_size parameter.

Hi,
How do I delete the sga_max_size parameter, currently I have
SQL> show parameter sga_max_size
NAME TYPE VALUE
sga_max_size big integer 260641504
I want to delete this entry from the init.ora parameter and create a new spfile, but I don't see this entry in the init.ora file. Any help is appreciated.
Thanks.

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Its using only the value of one search parameter but not the second one .
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Unable to set a top-level property object

Hey guys
I've made a little sequence to fetch data from a XML file. In that XML file, there is some informations (entries) (IP addresses, port numbers, etc) about 4 different types of devices(sections are the devices names). The first section of the XML tells me the NAMES of the devices I have to configure. The type of each device is located in the entries of each device. Each device has its own information and I can have more than one device of a type. In teststand, I've created custom data types (containers with empty fields) for each type of device I need.
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regards

Please Help, After Kernel panic restart failed- apple swirl(6 hrs), SafeMode-failed, SUMode-sucess. Could not unmount disk to erase. Repair permissions-multiple fail errors:unable to set permissions on... unable to set owner and group...

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144 lines/errors of this type of series of lines
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Unable to set sga_max_size parameter through spfile

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