How to pilot a DLPAR ?

[stephnane]

Hi.

I have a p650 server and I need to move a CPU from a partition to another.

How can I do this with a script ?

Tks.

Stephnane

 

[p5wizard]

DLPAR operations must be run from the HMC. Either from the HMC user interface or the HMC command line.

The info on how to do it is in a redbook:

http://www.redbooks.ibm.com/redbooks/pdfs/sg247038.pdf

These operations can be automated from a unix box (you need ssh and perhaps also expect)


HTH,

p5wizard

 

[stephnane]

There is no way to pilot this from the AIX ???

 

[hfaix]

no. you must do it from an HMC

 

[AIX5L]

You can do this from AIX by Script and SSH over Public Key Mechanism to the HMC.

ssh hscroot@hmc chhwres.....

 

[hirschaj]

You can run some DLPAR operations from the AIX command line using the drmgr command. Here is an example....

drmgr [-r (for remove)|-a (for add)] –c (resource type) –q (quantity)

Remove 256 MB or memory:
drmgr -r -c mem -q 1

Add 256 MB of memory:
drmgr -a -c mem -q 1

Add 1 cpu:
drmgr -a -c cpu -q 1

Is this supported by IBM? I have no idea. Have I tried it on a system of my own? Not yet, but this information was provided to me by a very trusted source so I am passing it along with no guarantee of functionality. If you try it out please let me know how well it works. HTH.


Jim Hirschauer

http://www.aixexpert.com

 

[hfaix]

AIX5L - excellent post

hirschaj - a don't see those flags in the man page.... I'd be curious to see if it works.

 

[hirschaj]

hfaix you are correct. Those are undocumented flags. I am curious about them too but don't have a test system to use right now.


Jim Hirschauer

http://www.aixexpert.com

 

[stephnane]

This command woks with scripts, but it seems to be hard to understand how it works...

I'll try to work with the HMC

Stephnane