| kernel parameters [message #54663] |
Tue, 26 November 2002 08:09  |
Erik
Messages: 17
Registered: September 2002
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Junior Member |
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Installing Oracle9i on Solaris9
Installation docs suggest settings for the kernel parameters and it says that you can obtain a list of the system's current shared memory and semaphore segments by issuing the command ipcs.
I set kernel parameter settings in the /etc/system file and rebooted.
I issue the command ipcs but but basically get no results. Were the parameters changed or not? How do I see the current values?
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| Re: kernel parameters [message #54668 is a reply to message #54663] |
Tue, 26 November 2002 13:49  |
Trifon Anguelov
Messages: 514
Registered: June 2002
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Senior Member |
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The shared memory and semaphores will not show if not used. You have to have your database instance up and running, the shared memory allocated and semaphores in use in order to see them.
If you edited the /ets/system file and rebooted already, then the changes are there.
You can see the current IPC Semaphores and IPC Shared Memory with sysdef command. Look at the end of the output.
$sysdef
...
...
...
*
* IPC Messages
*
0 entries in msg map (MSGMAP)
0 max message size (MSGMAX)
0 max bytes on queue (MSGMNB)
0 message queue identifiers (MSGMNI)
0 message segment size (MSGSSZ)
0 system message headers (MSGTQL)
0 message segments (MSGSEG)
*
* IPC Semaphores
*
10 entries in semaphore map (SEMMAP)
900 semaphore identifiers (SEMMNI)
32767 semaphores in system (SEMMNS)
30 undo structures in system (SEMMNU)
1200 max semaphores per id (SEMMSL)
900 max operations per semop call (SEMOPM)
10 max undo entries per process (SEMUME)
32767 semaphore maximum value (SEMVMX)
16384 adjust on exit max value (SEMAEM)
*
* IPC Shared Memory
*
4294967295 max shared memory segment size (SHMMAX)
1 min shared memory segment size (SHMMIN)
900 shared memory identifiers (SHMMNI)
900 max attached shm segments per process (SHMSEG)
Hope that helps,
clio_usa
OCP - DBA
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