Is it Possible to Migrate/Upgrade Load Source to a Smaller Load Source Disk Size?

Troubleshooting

Problem

A client LPAR was created from iHosting i with a single 400GB LUN. Performance issues were noticed due to having only one LUN in an iHosting i enviornment and customer wanted to replace the single LUN with eight 80GB LUNs.

Resolving The Problem

In order to migrate/copy a load source, the disk unit must be equal or greater in size. Therefore, it is impossible to perform a Load Source migration to a smaller load source.

You should refer to Chapter 3.5 in the following URL for information on Load Source Migration: http://www.redbooks.ibm.com/redbooks/pdfs/sg247200.pdf

It is recommended to have two full system saves (Save 21) and perform a scratch install to reload the system data on the newly configured disk units.

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Document Information

More support for:
IBM i

Software version:
7.1.0

Operating system(s):
IBM i

Document number:
646017

Modified date:
18 December 2019

UID

nas8N1020539

IBM Support

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