What's the difference between VIOS and LPAR?

UNIX AIX
1

Hi All,

Besides the licenses on VIO and LPAR. What's the main difference with the two? I have installed VIO, my manager told me so, because it's like a free hypervisor but I never installed LPAR before. How do you install it? And if you can give more info on the two, that would be great.

Thanks and more power.

2

Hi
i dont understand your request
whar does you mean
licenses managment or the implement of LPAR VIO ?

bye

3

HMC/LPAR license is not free and VIO is almost free but limited in functionality. Ahh I found a video topic with it, i'll post/summarize it here once i've seen it.

Thanks.

4

Hi Itik,

Lpars are virtual systems created on POWER systems from IBM. Lpars run their own OS and run independently from other LPARs on the same iron.

A vios is a lpar with a dedicated task: providing virtual storage devices to other LPARs. Depending on your needs you will install at least 1 vios and multiple lpars. Actual applications should normaliter be run in a lpar and not the vios.

Lpars are installed with a system called HMC.

--Peter

5

When the LPAR build is started a choice is presented to either build an LPAR or a VIO server. The VIO server presents virtual devices to other LPARs contained in the same Power series frame. The virtual devices presented are virtual Shared Ethernet Adapters (SEA); virtual SCSI adapters; and virtual Fibre adapters (NPIV). In a single Power system it would be bad practice to have only 1 VIO server. The VIO setup is all about resilience with each VIO server supplying failover capability to client LPARS.

The VIO server uses a subset of AIX and the VIO user (padmin) runs in a restricted shell and has a different command set. The VIO server should not be considered as another LPAR, it is a VIO server!

Building a VIO server can be done either by the Graphical User Interface on the Hardware Management Console (HMC) or running a script in an SSH session on the same HMC.

I hope this helps somewhat.

6

I think this should probably read:

APV / Power VM license is not free and IVM is almost free but limited in functionality.

Depending on your level of understanding this could be tricky to explain.

Here is a good starting point:
PowerVM QuickStart

1 Like