System information

252 Logical Partitions on System i5
9.1 Migration planning
This section focuses on the planning activities required to move POWER4™ LPAR
configurations to System i5 HMC LPAR profiles. You must understand your current LPAR
environment and have accurate documentation of how your system is configured and an
inventory of the resources that are presently in use. There are several tools and tasks that
can be used to document the current system environment and plan for a successful
migration. The following ones are recommended:
򐂰 Use DST or SST to print a copy of your current system configuration.
򐂰 Get a printout of your current system resource allocations.
򐂰 Review the resources in the Primary partition.
򐂰 Review bus numbering.
򐂰 Use the LPAR Validation Tool (LVT) to create a graphical worksheet of your partitions.
򐂰 Review your current system configuration to identify unsupported hardware at V5R3 and
determine a migration plan.
򐂰 Review this redbook to understand V5R3 changes and System i5 enhancements.
򐂰 Create a customized migration checklist.
򐂰 Schedule a pre sale Solution Assurance Review (SAR).
򐂰 Order the System i5 system.
9.1.1 Use DST or SST to print a copy of your current system configuration
Before upgrading an existing LPAR system, it is necessary to get the rack configuration of the
system with the details of each logical partition. This information is available through the
Display Partition Information screens which are available in Dedicated Services Tools (DST)
or
System Service Tools (SST).
The following steps document the process to print a rack configuration for a partitioned
system running V5R1/V5R2. It is a single pass that generates a multi-part report. The first
section looks very much like a normal rack configuration and can be used to verify the system
inventory. The remaining sections display the hardware assigned to each partition.
Perform the following steps:
1. Access the DST console environment. Place the Control Panel in B Manual
mode and
then use the up/down arrow keys to select function 21. Press Enter. The DST menu
displays on the system console. Log on the system with a valid DST user ID and
password.
2. From the Work with Partitions screen, select Option 4, Recover Configuration Data.
3. Clear out old hardware from the partition table by selecting Option 4, Clear Non-reporting
Logical Partitioning Resources.
Note: The following procedure includes certain steps to clear out the non-reporting
hardware prior to printing the rack configuration from DST. This is necessary because
there is no way to determine from the printout if the hardware listed is actually there or not.
If you feel comfortable that there is no non-reporting hardware, you can perform these
tasks from SST. Skip steps 1, 2, and 3 and simply start with step 4.
Note: All partitions must be active to select this option.