topic Re: adding additional processors to a vPar in Operating System - HP-UX

adding additional processors to a vPar

sokolova — Wed, 19 Jan 2011 12:56:20 GMT

we need to allocate additional processors to a vPar; however, the maximum value for vPar's has been set at 4.

how do I increase the max from 4 to 6

Re: adding additional processors to a vPar

Torsten. — Wed, 19 Jan 2011 13:03:02 GMT

It works like this

# vparmodify -p ... -m cpu:::min:max

Just fill in name, min and max CPU.

Re: adding additional processors to a vPar

sokolova — Wed, 19 Jan 2011 13:16:52 GMT

::: colon is mentioned for MIn value or max value..

plz clarify the difference between ::: to ::

Re: adding additional processors to a vPar

Torsten. — Wed, 19 Jan 2011 13:21:14 GMT

The notation is just

cpu:::min:max

by definition.

Compare to the admin guide.

Re: adding additional processors to a vPar

Alzhy — Wed, 19 Jan 2011 15:43:24 GMT

OR Sokolva -- you can just use the X-Windows GUI for managing vPars:

- set your DISPLAY
- /opt/vparmgr/bin/vparmgr

Enjoy.!

Re: adding additional processors to a vPar

Torsten. — Wed, 19 Jan 2011 16:13:26 GMT

... but only if this is 11.11 and the product is installed.

A single command is much easier...

Re: adding additional processors to a vPar

Manix — Wed, 19 Jan 2011 17:11:23 GMT

vparcreate -p vptest -a cpu::4 -a cpu:::2:4 -a cpu:1/14 -a cpu:1/15 ...

The syntax for CPU allocation with vparcreate
is:

vparcreate -ppartition_name [-a cpu::total] \
[-a cpu:::[min][:[max]]]] \
[[-acpu:hw_path]...]

Bound (Min ) CPUs are dedicated to a vPar and can't be dynamically removed or added to vPars. Bound CPUs handle I/O interrupts and should therefore be used with I/O-intensive applications. Unbound CPUs can be dynamically added and removed from vPars. Unbound (max) CPUs do not handle I/O interrups and should be used for CPU intensive applications

Re: adding additional processors to a vPar

Srikanth Kancharla — Thu, 20 Jan 2011 04:42:49 GMT

Hi Sokolova

vparmodify -p vp_name -m cpu:::1:6

check the man page for vparresources in Table II it shows vpar has to be down to do this change