topic Re: increase nofiles parameter in Operating System - HP-UX

increase nofiles parameter

meekrob — Tue, 28 Feb 2006 06:08:19 GMT

Hi ;
i have to increase the nofiles descriptor to 2048 from its value of 60 ,
i did the command ulimit -n 2048 and succeed to chane it ,
but when i reboot the server or change the session the value is back to 60 ,
what should i do to have the value 2048 permanently

thank you

Re: increase nofiles parameter

Pete Randall — Tue, 28 Feb 2006 06:12:38 GMT

I'm assuming that you mean "nfiles", since I've never heard of "nofiles". To change nfiles permanently, you need to modify the kernel. The easiest way is to use SAM > Kernel Configuration > Configurable Parameters. Increase "nfile" to 2048, then select Actions > Process New Kernel.

Pete

Re: increase nofiles parameter

Devender Khatana — Tue, 28 Feb 2006 06:38:13 GMT

Hi,

As stated earlier nofile is not a valid parameter and you need to increase nfile. The process above is perfect but will require a system reboot.

HTH,
Devender

Re: increase nofiles parameter

Senthil Kumar .A_1 — Tue, 28 Feb 2006 07:01:10 GMT

Hi rue,

There is a nofile part to ulimit, but if you change it using "ulimit" command it will be temperory. If you want to change it permanetly across boots , you need to set the value for the kernel parameter "maxfiles" ..

see my example..

root@cst2adm# ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 2015436
stack(kbytes) 262144
memory(kbytes) unlimited
coredump(blocks) 4194303
nofiles(descriptors) 4096
root@cst2adm# sysdef | grep maxfiles
maxfiles 4096 - 30-2048 -

regards,
Senthil Kuamr .A

Re: increase nofiles parameter

Senthil Kumar .A_1 — Tue, 28 Feb 2006 07:07:09 GMT

hi again,

to change the "maxfiles" parameter in kernel, you can do it in SAM,under Kernel configuration functional area,

to cross check , u can compare the value of "nofile" to "maxfiles" parameter before u change "maxfiles" value..

to check nofiles value,

ulimit -a

to check maxfiles value,

sysdef | grep maxfile

regards,
Senthil Kumar .A