topic Re: Kernel Parameters change not effective in Operating System - HP-UX

Kernel Parameters change not effective

Abhijit P. — Fri, 12 Aug 2005 00:18:39 GMT

HI All,

My DBA Wanted me change the following KErnel Parametres

shmmax / shmmni /nproc/maxuprc

and changed it through SAM and rebooted the server and found those parameteres got changed this was the incidence of yesterday night 1 o'clock and today morning When I see those parameters. those again has the same old values of it.

Please help me to solve this issue

Thanks in Advance

Abhi

Re: Kernel Parameters change not effective

Muthukumar_5 — Fri, 12 Aug 2005 00:31:52 GMT

HP-UX 11.11 Status:

# kmtune -q nproc -l
Parameter: nproc
Current: 276
Planned: (20+8*MAXUSERS)
Default: (20+8*MAXUSERS)
Minimum: -
Module: -
Version: -
Dynamic: No
#
#
# kmtune -q shmmax -l
Parameter: shmmax
Current: 0x4000000
Planned: 0X4000000
Default: 0X4000000
Minimum: -
Module: -
Version: -
Dynamic: Yes
#
# kmtune -q shmmni -l
Parameter: shmmni
Current: 200
Planned: 200
Default: 200
Minimum: -
Module: -
Version: -
Dynamic: No
#
# kmtune -q maxuprc -l
Parameter: maxuprc
Current: 75
Planned: 75
Default: 75
Minimum: -
Module: -
Version: -
Dynamic: Yes
#

You can only tune maxuprc and shmmax with SAM or kmtune -u -s =value

You have rebuild kernel for nproc and shmmni parameters.

hth.

Re: Kernel Parameters change not effective

morganelan — Fri, 12 Aug 2005 03:54:00 GMT

Hi,

#kmtune -s nproc="20+(8*maxusers)
#kmtune -s shmmni=....
#kmtune -s shmmax=....
#kmtune -s maxuprc=....
#cp system build
(build is a directory under /stand)
#mk_kernel -o /stand/vmunix
#kmupdate
#cd /
#shutdown -ry now