vmtune vmo ioo for oracle Post: 302290187

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Operating Systems AIX vmtune vmo ioo for oracle Post 302290187 by filosophizer on Sunday 22nd of February 2009 09:32:36 AM

02-22-2009

Registered User

vmtune vmo ioo for oracle

Hello,

My old AIX version is having the following in the script -- so whenever the system reboots -- the following is set:

vmtune -f 480 -F 512 -R 32 -P 30 -p 10

Now, we have a new P-series system which has AIX 5.3 ; As i understand that vmtune is no longer supported on AIX 5.2 and above ;

As per the document pSeries and AIX Information CenterI have translated the vmtune to
vmtune -f 480 -F 512 -R 32 -P 30 -p 10
-f 480 = vmo -o minfree=480
-F 512 = vmo -o maxfree=512
-p 10 = vmo -o minperm%=10
-P 30 = vmo -o maxperm%=30

-R 32 = ioo -o maxpgahead=32

My question: are these values permanent or do i need to put them in the script ?

2) How can I make them permanent ?

filosophizer

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LEARN ABOUT NETBSD

cpu_reboot

CPU_REBOOT(9)						   BSD Kernel Developer's Manual					     CPU_REBOOT(9)

NAME

     cpu_reboot -- halt or reboot the system

SYNOPSIS

     #include <sys/reboot.h>

     void
     cpu_reboot(int howto, char *bootstr);

DESCRIPTION

     The cpu_reboot() function handles final system shutdown, and either halts or reboots the system.  The exact action to be taken is determined
     by the flags passed in howto and by whether or not the system has finished autoconfiguration.

     If the system has finished autoconfiguration, cpu_reboot() does the following:

	   1.	Sets the boothowto system variable (see boothowto(9)) from the howto argument.

	   2.	If this is the first invocation of cpu_reboot() and the RB_NOSYNC flag is not set in howto, syncs and unmounts the system disks by
		calling vfs_shutdown(9) and sets the time of day clock by calling resettodr(9).

	   3.	Disables interrupts.

	   4.	If rebooting after a crash (i.e., if RB_DUMP is set in howto, but RB_HALT is not), saves a system crash dump.

	   5.	Runs any shutdown hooks by calling pmf_system_shutdown(9).

	   6.	Prints a message indicating that the system is about to be halted or rebooted.

	   7.	If RB_HALT is set in howto, halts the system.  Otherwise, reboots the system.

     If the system has not finished autoconfiguration, cpu_reboot() runs any shutdown hooks by calling pmf_system_shutdown(9), prints a message,
     and halts the system.

     If RB_STRING is set in howto, then the parameter bootstr is passed to the system boot loader on some ports.

SEE ALSO

     boothowto(9), dumpsys(9), pmf_system_shutdown(9), resettodr(9), vfs_shutdown(9)

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