System Parameters Post: 302380542

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Operating Systems AIX System Parameters Post 302380542 by bbbngowc on Tuesday 15th of December 2009 04:39:39 PM

12-15-2009

Registered User

We have someone troubleshooting a timesten error and they believe the issue has to do with the shared memory size on the system. They want to know what the value of it is. So, I'm hunting.

I found this command: ipcs -b - That shows the shared memory for system, who owns it, segment size and some other information.

Thanks for the link. I'll have a look and see what it offers.

---------- Post updated at 12:41 PM ---------- Previous update was at 12:20 PM ----------

I looked at the link and it showed information that I had already seen. I'm looking specifically for a value of the Shared Memory on AIX 5.3.

---------- Post updated at 04:39 PM ---------- Previous update was at 12:41 PM ----------

After more research, I found this is a parameter in the oracle db. Using the below command against the DB I was able to get the info.

Code:

(select * from SYSTEM_PARAMETERS where PARAM_CODE = 'SHMSZ';)

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LEARN ABOUT HPUX

msgseg

msgseg(5)							File Formats Manual							 msgseg(5)

NAME

       msgseg - number of System V IPC message segments in the system (OBSOLETE)

DESCRIPTION

       The tunable is obsolete and has been removed.

       This tunable specified the total number of "segments" of system-wide shared memory message storage space which is shared among all IPC mes-
       sage queues.  This tunable is replaced by the tunable msgmbs(5) (The maximum (in megabytes) kernel memory to be used for  messages  waiting
       to be received.)

       For more information about System V message queues, refer to the section of the mesg(5) manpage.

WARNINGS

       All HP-UX kernel tunable parameters are release specific.  This parameter has been obsoleted for HP-UX 11i Version 3 and forward.

AUTHOR

       was developed by AT&T.

SEE ALSO

       msgsnd(2), mesg(5), msgmbs(5), msgmap(5), msgmax(5), msgmnb(5), msgmni(5), msgssz(5), msgtql(5).

OBSOLETE
						     Tunable Kernel Parameters							 msgseg(5)