Preparing for the migration from a IBM i model that does not support IBM i 7.4

If you cannot install IBM® i 7.4 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.

Before you begin this procedure, complete these prerequisite tasks:

Preparing target system

  1. Verify that the target system is set up and is running with only the Licensed Internal Code and the base IBM i 7.4 operating system installed. (Order feature code 0205, or manually install the new system up to the point before you use GO LICPGM to install libraries QGPL and QUSRSYS and licensed programs.)
  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 IBM i 7.4 on each logical partition. Allow at least two additional hours to do this for each logical partition. For more information, see the Logical partitioning topic for your system model in the IBM Power Systems Hardware Information Center.
  3. Ensure that your console is set up and ready.
    For information, see Connecting to your 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 Configuring disks and disk protection.
  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.
      Note: You can use the WRKLIND and WRKDEVD 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, keep it.
    3. Clean up disk storage space. For more information, see Cleaning up disk storage space.
  2. Ensure that you have the required fixes (also called program temporary fixes or PTFs). For more information, see Using software fixes.
  3. Gather performance data.
    This gives you a basis for comparing performance before and after the data migration. For details, see Collecting system performance data.
  4. On the IBM i command line, enter RTVSYSINF (Retrieve System Information).
    When you run this command, specify the library to use. Typically, you can 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 IBM i command line, enter PRTSYSINF and then print the resulting spooled files. 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. For detailed instructions, see Printing the system configuration list.
    3. On the IBM i command line, enter WRKDEVD and enter option 6 (Print) to print the device descriptions.
    4. On the IBM i command line, enter WRKCTLD and enter option 6 (Print) to print the controller descriptions.
    5. 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 by using option 21 of the GO SAVE command. For more information about the GO SAVE command, see Overview 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
    3. Spooled file data ............*ALL
      Note: Ensure that you have two copies of the backup media.

The next step is to complete the migration. Go to Completing the migration from a IBM i model that does not support IBM i 7.4.