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  3. March 2006

Re: Problem migrating IXS

The biggest hassle here is that the Small Business Server installation is the Domain Controller so building a brand spanking new server is just going to hose up the entire network. New SID's, new Users, all the PC's have to rejoin the domain. Sigh.....
ANYONE who says the iSeries is old, hard to use technology should be forced to do what I just went through: Migrate a model 270 ("old processor") to a model i5 520 (Power 5+) and do the same with Windows. The i5 upgrade went SO smoothly! Users, libraries, files, devices, programs, everything just smoothly came over. Well, ALMOST everything. Windows 2000 did not fare so well, for the reasons already posted. So I guess that "old" Windows technology just isn't very advanced. I took i5/OS and went from one completely different processor technology to another with no problem. I can't even move a hard drive from one Windows PC to another unless my hardware is a pretty close match and jumping processor technologies is, I guess, not possible.
I guess I already knew the answer before I posted. I was just hoping that IBM was able to overcome a Windows limitation with a processor migration feature that worked as well as the i5/OS migration. I guess I have gotten used to IBM fixing Microsoft's problems..... 

Pete

Larry Bolhuis wrote:
You didn't do the proper planning sad to say. The issue is that the Windoze kernel that was required (and therefore installed) on your 2890 model is not compatible with the processor on the new 4812 model. You must reload windoze that's the only way out. Once loaded though you can attach the old NWSSTG objects and copy any data that's on them but Windoze and your apps need to be reloaded.
Now should the B/R guide have helped you plan? No argument there! However there is information on the windows integration pages that describe this issue quite clearly.
As you likely have guessed Windoze does not have support for all processors in their kernel as does i5/OS, they only load what's needed now and there isn't a way to tell it to load more for use later. Bummer. 

 - Larry

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