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  3. June 2004

Re: i5 and Linux

See in line

Larry Bolhuis wrote:

> First things first an "i5" must be sold with an i5/OS on it to be called an i5 (ie 9406)

Makes sense but there is no requirement that you must RUN that partition. It's your box. However I understand that some functions to require one OS/400... oops i5/OS partition so you likely will want to.

But before the I5 there was a requirement that you had to have a primary partition and if it went down so did the other ones. And I am not sure if the primary partition HAD to be OS400, but I am thinking it does. And if that is the case there was that requirement and now it it gone, so you have the choice now. Now the primary partition is replaced by the hardware console on the I5

> I'm being told that Linux will no longer run as a "Guest" running on top of i5/OS.
> It will run "Native" as a LPAR Partition as will AIX

This is incorrect. You will have the choice of hosted or non-hosted Linux partitions on i5. That is, you can configure linux partitions to have no native disk, tape, or network cards, or it's own disk adapters, tape, and ethernet cards or any combination between.

Linux never really ran 'on top of' OS/400, rather Linux just utilized an OS/400 virtual SCSI adapter to see disk, a virtual LAN to see the network, and the virtual SCSI again to see tape drives. This doesn't change. In fact on i5 you must create the virtual SCSI, LAN, and Serial cards to support Linux.

Because of the pre I5 requirement for a primary partition, to some that made it look like it ran on top of OS400.

> Linux and AIX won't be supported on the i5 until 3rd Quarter

True.

>  How this will affect Linux on 8xx hardware running 5.3, I don't know

Should be no problem. Wait, I've done it already! No changes. The issue for Linux is the POWER5 processor needing a new Linux Kernel.

I do not think anything pre I5 will run AIX. AIX 5.2 will still need a full processor, AIX 5.3 can use part of a processor, as can I5/OS and Linux.Both version of AIX are due out at the same time, because it takes vendors a while to certify their software on a new version. So you might be able to get AIX 5.3 but finding anything supported on it might be a bigger task. And for linux anything pre I5 will still need the primary partition.

John Ross
www.netshare400.com

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