Upgrading the load source disk unit with local mirroring using newly installed disk units

This checklist shows the sequence of tasks to upgrade your load source disk unit (unit 1) and the mirrored load source with disk units that have equal capacity, are at least 70-GB, and are mirror protected. The disk units that are replaced in this procedure are discarded.

Attention: These instructions are for all IBM® i models.

Print a copy of this checklist. Check off the configuration tasks as you perform them. This checklist provides an important record of your actions. It may help you diagnose any problems that occur.

Before you begin

Evaluate your disk configuration and record your answers. The information entered in the Before you begin table is needed to answer the questions in the Load source planning section.

Table 1. Disk configuration questions
Disk configuration questions Disk configuration answers
Where is the load source disk unit and the mirrored load source disk unit located?

Determine the disk unit locations using Dedicated Service Tools (DST) or System Service Tools (SST).

  1. From either Use Dedicated Service Tools (DST) or System Service Tools (SST) display, select Work with disk units.
  2. From the Work with Disk Units display, select Work with disk configuration.
  3. From the Work with Disk Configuration display, select Display disk configuration.
  4. From the Display Disk Configuration display, select Display disk configuration status.
  5. Write down the resource names (example DD001) of both the load source and load source mirrored unit (unit 1). At this point it is not necessary to know how to determine which resource name is assigned to the load source and the mirrored load source.

    Resource Name: ___________________

    Resource Name: ___________________

  6. From the Dedicated Service Tools (DST) or System Service Tools (SST) display, select Start a Service tool.
  7. From the Start a Service Tool display, select Hardware service manager.
  8. From the Hardware Service Manager, select Locate resource by resource name.
  9. Enter the first resource name that was written down in step 5 and press Enter.
  10. From the Logical Hardware Resources display, select Associated packaging resource(s).
  11. From the Packaging Resources Associated with a Logical Resource display, select Display detail.
  12. Start of changeWrite down the Physical location information for the disk unit.

    Resource Name: ____________

    Unit ID: ____________

    Planar ID: ____________

    Device: ____________

    End of change
  13. Start of changeRepeat steps 9-12 for the second resource name written down in step 5.

    Resource Name: _____________

    Unit ID: ____________

    Planar ID: ____________

    Device: ____________

    End of change
  14. The physical locations can be found by referencing the map located inside the front door of the IBM i or expansion tower.
Tip: Mark these disk units with tape to remember their locations.
  

Load source planning steps

Answer the questions below. If you answer Yes to all of these questions, you can perform the load source disk unit upgrade. However, if you answer No to any of the questions, call your next level of support to perform this upgrade.

Table 2. Load source planning steps
Load source planning steps Planning requirements answers
Does your load source disk unit (unit 1) have mirrored protection? Yes / No
Start of changeDoes your system or partition currently have at least one available disk slot to install a load source replacement disk unit or a virtual storage LUN? End of change Yes / No
Do you know how to physically install and remove disk units from your system?

Install and remove replacement disk units on an IBM i.

 Yes / No
Where you able to locate the load source and load source mirrored units in the Disk Configuration questions? Yes / No
The load source upgrade will require multiple hours to complete. Make sure that you schedule the upgrade during a time frame when the system or partition can be unavailable to perform normal system activities. Do you have time to perform the load source upgrade? Yes / No

Load source disk unit upgrade

Note: If problems occur that are not described in this procedure contact your next level of support.
Task What to do
1. Back up your system using the GO SAVE command from the IBM i command line.
2. Set the IPL mode to MANUAL.
Note: Manual IPL is required for Dedicated Service Tools (DST).
3. Restart your system or partition to Dedicated Service Tools (DST) by entering the following command from the IBM i command line. 
PWRDWNSYS *IMMED RESTART(*YES)
Note: Verify that you are in manual mode before you power down your system.
4. Begin Dedicated Service Tools.
  1. From the IPL or Install the System menu, select Use Dedicated Service Tools.
  2. Sign on to Dedicated Service Tools (DST).
5. Suspend Mirroring on the mirrored load source disk unit (unit 1).
  1. From the Dedicated Service Tools (DST) menu, select Work with disk units.
  2. From the Work with Disk Units display, select Work with disk unit recovery.
  3. From the Work with Disk Unit Recovery display, select Suspend Mirrored protection.
  4. Write down the resource name (example DD001) of the mirrored load source disk unit (unit 1) that you are suspending. |_______________|
  5. Type 1 next to the mirrored load source disk unit (unit 1) and press Enter.
6. Start of change
  1. Write down the resource name of the load source disk unit that you suspended in task 5.

    Resource Name: ___________________

  2. From the Dedicated Service Tools (DST) display, select Start a Service tool.
  3. From the Start a Service Tool display, select Hardware service manager.
  4. From the Hardware Service Manager, select Locate resource by resource name.
  5. Enter the resource name that was written down in step 1 and press Enter.
  6. From the Logical Hardware Resources display, select Associated packaging resource(s).
  7. From the Packaging Resources Associated with a Logical Resource display, select Display detail.
  8. Write down the Physical location information for the disk unit that was suspended in task 5.

    Resource Name: ____________

    Unit ID: ____________

    Planar ID: ____________

    Device: ____________

End of change
7. Power off your system or partition.
  1. From the Use Dedicated Service Tools (DST) display, select Start a Service Tool.
  2. From the Start a Service Tool display, select Operator panel functions.
  3. Use function F10 to power off the system.
  4. Press Enter.
Note: There is no command line because you are using Dedicated Service Tools.
8. Install the first replacement disk unit.
  1. Start of changeInstall the replacement disk unit into the available disk slot or assign a virtual storage LUN. End of change
  2. Write down the serial number of the replacement disk unit that is to going replace the load source. |________________________|
Note: Ensure that the disk unit has at least a 70-GB capacity.
9. Power on your partition and begin Dedicated Service Tools (DST).
  1. Power on your partition.
  2. Select Use Dedicated Service Tools (DST) from the IPL or Install the System menu.
  3. Sign on to Dedicated Service Tools (DST).
10. Copy the load source disk unit (unit 1) to the replacement disk unit.
  1. From the Use Dedicated Service Tools (DST) menu, select Work with disk units.
  2. From the Work with Disk Units display, select Work with disk unit recovery.
  3. From the Work with Disk Unit Recovery display, select Copy disk unit data.
  4. Start of changeType 1 next to the load source disk unit (unit 1) and press Enter. Write down the resource name of the load source disk unit that you selected:. |________________________|End of change
  5. Start of changeType 1 next to the replacement disk unit that was installed in task 8 and press Enter. End of change
  6. Use function F10 to accept the "Other sub-unit will become missing" error.
  7. Verify the correct non-configured disk unit was chosen as the Disk that is copied to, and press Enter on the Confirm Copy Disk Unit Data display.
  8. Start of changeThe status display shows how the operation is proceeding. When the function is complete, the partition will automatically IPL to the Use Dedicated Service Tools (DST) menu. End of change
11. Start of change
  1. From the Dedicated Service Tools (DST) or System Service Tools (SST) display, select Start a Service tool.
  2. From the Start a Service Tool display, select Hardware service manager.
  3. From the Hardware Service Manager, select Locate resource by resource name.
  4. Enter the resource name that was written down in task 10 step 4 and press Enter.
  5. From the Logical Hardware Resources display, select Associated packaging resource(s).
  6. From the Packaging Resources Associated with a Logical Resource display, select Display detail.
  7. Write down the Physical location information for the disk unit.

    Resource Name: ____________

    Unit ID: ____________

    Planar ID: ____________

    Device: ____________

End of change
12. Power off the system or partition.
  1. From the Use Dedicated Service Tools (DST) menu, select Start a service tool.
  2. From the Start a Service Tool display, select Operator panel functions.
  3. Use function F10 to power off the system.
  4. Press Enter to continue.
13. Physically remove the original load source disk unit.
  1. Physically remove the original load source disk unit.
Note: Start of changeThis is the original load source disk unit that you copied in task 10, and identified in task 11.End of change
14. Start of changeInstall the second replacement disk unit that will be the mirror mate to the load source disk unit.
  1. Install the replacement disk unit into the available disk slot on your system or assign a virtual storage LUN of the same size as the virtual storage LUN in task 8.
  2. Write down the serial number of the replacement disk unit that will be the mirror mate to the load source disk unit. |________________________|
Note: Ensure that the disk unit has at least a 70-GB capacity.
End of change
15. Start of changeUse the HMC to change the I/O tag.
  1. In your HMC, expand Systems Management > Servers.
  2. Select the system.
  3. Select the check box for the partition.
  4. From the menu for the partition, click Configuration > Manage Profiles.
  5. In the Managed Profiles pane, click the profile name.
  6. In the Logical Partition Profile Properties pane, click the Tagged I/O tab.
  7. From the Load source list, select the IOA that you want to control the Load Source disk unit.
  8. Click OK.
End of change
16. Power on your system or partition and begin Dedicated Service Tools (DST).
  1. Power on your system or partition.
  2. Select Use Dedicated Service Tools (DST) from the IPL or Install the System menu.
  3. Sign on to Dedicated Service Tools (DST).
17. Replace the configured disk unit.
  1. From the Use Dedicated Service Tools (DST) menu, select Work with disk units.
  2. From the Work with Disk Units display, select Work with disk unit recovery.
  3. From the Work with Disk Unit Recovery display, select Replace configured disk unit.
  4. Type a 1 next to the suspended mirrored load source disk unit (unit 1) and press Enter.
  5. Type a 1 next to the replacement disk unit, based on the serial number, that was installed in task 14.
  6. Verify the correct non-configured disk unit was chosen, and press Enter on the Confirm Replace Configured Unit display.
  7. The status display shows how the operation is proceeding. When the function is complete, return to the Use Dedicated Service Tools (DST) menu.
18. Examine the configuration.
  1. From the Use Dedicated Service Tools (DST) menu, select Work with disk units.
  2. From the Work with Disk Units display, select Work with disk configuration.
  3. From the Work with Disk Configuration display, select Display disk configuration.
  4. From the Display Disk Configuration display, select Display disk configuration status.
  5. Examine the configuration information to ensure that the load source disk unit (unit 1) and mirrored load source disk units match the serial numbers listed in task 8 and task 14.
19. IPL your system to IBM i.

If this procedure has been completed correctly, your load source will be upgraded. Mirrored protection will be active when the partition IPLs past DST.

If this procedure has not been completed correctly, contact your next level of support.