Preparing for the migration from an iSeries system that does not support V5R4

 

If you cannot install i5/OS® V5R4 on your source system, you can still migrate your data by saving your source system and then performing a full system recovery onto the target system. This topic describes how to prepare to migrate your data from a system that does not support V5R4 to the new target system.

Before you begin this procedure, be sure you have completed these prerequisite tasks:

Then, to prepare to migrate your data from a system that does not support V5R4, perform the following tasks.

 

Parent topic:

Performing the migration

Related concepts
Planning the migration Scenarios: Data migration

Related tasks
Performing the migration Completing the migration from an iSeries system that does not support V5R4
Related information
Preventive service planning (PSP) information Backup and Recovery Guide Creating logical partitions Operations Console Cleaning up disk storage space Ensuring you have required fixes (program temporary fixes or PTFs) Collecting system performance data Printing the system configuration list Printing system configuration for logical partitions Saving and restoring spooled files GO SAVE

 

Preparing target system

  1. Verify that the target system is set up and is running with only the Licensed Internal Code and the i5/OS operating system installed (feature code 0205).

  2. If you are configuring a system with logical partitions, create logical partitions on the target system and then install the Licensed Internal Code and i5/OS on each secondary partition. Allow at least two additional hours to do this for each partition.

  3. Ensure that your console is set up and ready.

    If you are using a twinaxial console on the source system and using Operations Console on the target system, ensure that you have a twinaxial controller for any twinaxial devices you plan to run from the target system.

  4. Perform disk unit management (for example, manage disk protection and disk configuration). To do this, you can use the Work with Disk Units option from the Dedicated Service Tools display. For information, see the chapter that contains procedures for configuring disks and disk protection in the Backup and Recovery Guide.

  5. Make sure that you have a copy of the distribution media for the target system.

 

Preparing the source system

  1. Clean up the source system:
    1. Use the Work with Line Descriptions command (WRKLIND) to view and delete unused lines and line descriptions.
    2. Use the Work with Device Descriptions command (WRKDEVD) to delete unused device descriptions.

      You can use the Work with Line Descriptions and Work with Device Descriptions commands to view and verify that all of the descriptions listed are in use. If you are sure one is not in use, delete it. If you are not sure, you should leave it.

    3. Clean up disk storage space.

  2. Ensure you have required fixes (program temporary fixes or PTFs).

  3. Collect performance data.

    This gives you a basis for comparing performance before and after the data migration.

  4. On the i5/OS command line, enter RTVSYSINF.

    When you run this command, you will need to specify the library to use. Typically, you should specify the QUPGRADE library. If this library does not exist, create it with the Create Library (CRTLIB) command.

  5. Print your system configuration information:
    1. On the i5/OS command line, enter PRTSYSINF and then print the resulting spooled file. This prints reports of the hardware resources, software resources, system values, installed fixes (program temporary fixes or PTFs), and other configuration information.
    2. Print a new system configuration list and keep this list for future reference.
    3. On the i5/OS command line, enter WRKDEVD. Use option 6 (Print) to print the device descriptions.
    4. On the i5/OS command line, enter WRKCTLD. Use option 6 (Print) to print the controller descriptions.
    5. If you have a partitioned system, print the system configuration for logical partitions.
    6. If necessary, save spooled files.

      For more information, see Save spooled files in the Information Center.

    7. Job scheduler entries will not be restored on the target system. Use the print option on the Work with Job Scheduler Entries (WRKJOBSCDE) command to record your current job scheduler entries. Then you can manually re-create them on the target system.

  6. Save the entire system using option 21 of the GO SAVE command. Make sure that you specify the following options:
    1. Vary off the network server...*ALL
    2. Unmount file systems..........Y

      IBM recommends that you have two copies of the backup media.

The next step is to complete the migration from an iSeries™ system that does not support V5R4.