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тАО05-08-2007 08:42 PM
тАО05-08-2007 08:42 PM
Could you please tell me how to change the kernel configuration parameters like MAXDSIZ_64
KSI_ALLOC_MAX ..
Could you also suggest me some link which describes all the kernel parameters.
Thanks in Advance.
Pushpa
Solved! Go to Solution.
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- maxdsiz
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тАО05-08-2007 08:49 PM
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тАО05-08-2007 08:49 PM
тАО05-08-2007 08:49 PM
Re: setting kernel parameters
Configurable Kernel Parameters
http://docs.hp.com/hpux/onlinedocs/os/KCparams.OverviewAll.html
Guidelines for Tuning HP-UX Kernel Parameters
http://docs.hp.com/en/J2716-90017/ch06s05.html
regards,
ivan
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тАО05-09-2007 04:13 AM
тАО05-09-2007 04:13 AM
Re: setting kernel parameters
If your not familiar with where to change the kernel parms, then may I suggest you begin your practice and learning of kernel tuning on a test box ! You don't want to practice on a live production box......it can be deadly...
Here is where you can read up on the parms:
http://docs.hp.com/en/1219/tuningwp.html
Regards,
Rita
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тАО05-09-2007 06:07 AM
тАО05-09-2007 06:07 AM
Re: setting kernel parameters
It depends on your os level. There is a list of kernel parameters somewhere under http://docs.hp.com. You'll have to search for them a bit. As a previous poster mentioned, they're also available under sam - one of the very few valid reasons to get into sam on systems prior to 11.23.
One 11.23 systems, the details are available from the command line:
# kctune -v maxdsiz_64bit
Tunable maxdsiz_64bit
Description Maximum size of the data segment of a 64-bit process (bytes)
Module vm
Current Value 4294967296 [Default]
Value at Next Boot 4294967296 [Default]
Value at Last Boot 4294967296
Default Value 4294967296
Constraints maxdsiz_64bit >= 262144
maxdsiz_64bit <= 4396972765184
Can Change Immediately or at Next Boot
With 11.23, you use kctune to update the parameters. A simple reboot, if necessary, will update the static parameters.
11.11 and previous OS versions require a bit more work. As stated, sam is a valid way. I still prefer the command line though. The checklist I use to update kernel parms is available at:
http://www.olearycomputers.com/ll/hpkernel.html
HTH;
Doug
------
Senior UNIX Admin
O'Leary Computers Inc
linkedin: http://www.linkedin.com/dkoleary
Resume: http://www.olearycomputers.com/resume.html