Maximum value of swchunk on 11.11 -- 16384 or 65536?

[Alzhy]

HP support and URL is saying it is 65536 for swchunk so our max swap can be at 1024GB. However, sysdef shows swchunk can only go up to 16384 for a total of 256GB swap possible...



root@hpsrv1 # sysdef|egrep "NAME|chunk"
NAME VALUE BOOT MIN-MAX UNITS FLAGS
maxswapchunks 16384 - 1-16384 -
swchunk 16384 - 2048-16384 kBytes -

[ /root ]
root@hpsrv1 # uname -a
HP-UX hpsrv1 B.11.11 U 9000/800 4172948470 unlimited-user license

[Don Morris_1]

sysdef is wrong, everyone else is right. (I checked -- it looks like sysdef has the min and max hard coded for some tunables, shmmni is also way off at a listed max of 1024 instead of 8192).

[James R. Ferguson]

Hi Nelson:

For what its worth, 'sysdef' has been deprecated (though not well documented as such) since the advent of 'kmtune' in 11.0.

I would not rely on it output.

Regards!

...JRF...