topic IBM p-690 DLPAR..info required!! in Operating System - Linux

IBM p-690 DLPAR..info required!!

abhijeet_7 — Wed, 09 Mar 2005 08:13:25 GMT

Hello gurus,
we would be soon migrating from SUN (fire) machine to new IBM p-690 server.

I want to know about Dynamic Logical Partitioning feature in detail.

I need to know its implementation,implication & what
is the role of system administrator in using DLPAR.

I have referred www.ibm.com & few other ,but i need to know more details about DLPAR.

Thanks & Regards
ABHI K

Re: IBM p-690 DLPAR..info required!!

Florian Heigl (new acc) — Wed, 09 Mar 2005 09:03:29 GMT

Did You read http://www.redbooks.ibm.com/abstracts/sg247039.html ?

Re: IBM p-690 DLPAR..info required!!

Andrew Cowan — Thu, 10 Mar 2005 02:30:13 GMT

In short:

All P650/70/90's are controlled externally from a Linux pc known as the HMC. The HMC talks to a hypervisor that controls all the hardware resources, and can control how they are distributed to form Logical partitions (LPAR). The dynamic bit comes in because it is possible for partitions to give and receive hardware resources, and to reboot, and be rebuilt independantly of one another. LPARs can also have different OS's on them, e.g. Unix.
The HMC controls all this through a GUI that tals to the global firmware and the hypervisor card.

This is a very advanced concept and from my personal experience goes beyond what Sun provides.