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 17-GB, and are mirror protected. The disk units that are replaced in this procedure are discarded.

These instructions are for all System i™ models except for eServer™ i5 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?

  1. In iSeries™ Navigator, expand My Connections (or your active environment).

  2. Expand the System i you want to examine,Configuration and Service > Hardware > Disk Units.

  3. Sign on to Service Tools.

  4. Right-click on All Disk Units and select Graphical View.

  5. From the All Disk Units view, select the load source and mirrored load source disk units.

The load source disk unit is identified with a status of Performance limited- load source, and the mirrored load source disk unit will be identified with a status of Active- load source.

Tip: Print the graphical view of the load source disk unit and the mirrored load source disk unit or optionally mark them.

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 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. Write down the Frame ID and card position for the disk unit.

    Resource Name: ____________

    Frame ID: ____________

    Card position: ____________

  13. Repeat steps 9-13 for the second resource name written down in step 5.

    Resource Name: _____________

    Frame ID: ____________

    Card position: ____________

  14. The physical locations of the card positions can be found by referencing the map located inside the front door of the System 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
Does your system or partition currently have at least one available disk slot to install a load source replacement disk unit? Yes / No
Do you know how to physically install and remove disk units from your system?

Install and remove replacement disk units in an IBM® System 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

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 i5/OS® command line.
2. Set the IPL mode to MANUAL.

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 i5/OS command line. 
PWRDWNSYS *IMMED RESTART(*YES)

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). |_______________|

  5. Type 1 next to the mirrored load source disk unit (unit 1) and press Enter.
6. Power off your system or partition.

This task is critical. Follow the directions thoroughly.

  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.

There is no command line because you are using Dedicated Service Tools.

7. Label the load source and mirrored load source disk units using the physical locations determined in the Disk Configuration questions. If the physical locations where found using Dedicated Service Tools (DST) or System Service Tools (SST), determine the mirrored load source physical location by matching the resource name found in task 5 step 4 with the resource names found in the Disk Configuration questions steps 12-13. Once the mirrored load source disk unit is labeled, label the other disk unit the load source disk unit.
8. Install the first replacement disk unit.

  1. Install the replacement disk unit into the available disk slot on your system.

  2. Write down the serial number of the replacement disk unit that is to going replace the load source. |________________________|

Ensure that the disk unit has at least a 17-GB capacity.

Tip: Mark the disk unit with tape to remember their location, and mark them differently than how you marked the original load source in task 7.
9. 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).
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. Type 1 next to the load source disk unit (unit 1) and press Enter.

  5. Type 1 next to the replacement disk unit added in step 8 and press Enter.

  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. The status display shows how the operation is proceeding. When the function is complete, return to the Use Dedicated Service Tools (DST) menu.
11. Power off the system or partition.

This task is critical. Follow the directions thoroughly.

  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.

There is no command line because you are using Dedicated Service Tools (DST).

12. Physically remove the original load source disk unit.

  1. Physically remove the original load source disk unit.

This is the original load source disk unit that was marked in task 7.

13. Move the load source replacement disk unit to the load source position.

  1. Move the load source replacement disk unit that now contains the load source information into the slot where the original load source disk unit resided.
14. Replace the mirrored load source disk unit.

  1. Physically remove the mirrored load source disk unit.

  2. Write down the serial number of the replacement disk unit that is going to replace the mirrored load source disk unit. |________________________|

  3. Install the second replacement disk unit into the slot that the mirrored load source originally resided.

Ensure that the disk unit has at least a 17-GB capacity.

Tip: Mark this disk unit with tape to remember its location, and make sure to mark the replacement disk unit differently than how you marked the original mirrored load source in task 7.
15. 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).
16. 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 last 4 or 5 digits of the serial number, that was added in task 14 step 2.

  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.
17. 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 step 2.
18. IPL your system to i5/OS.

If this procedure has been completed correctly, your load source will be upgraded and mirrored protection will be active.

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

 

Parent topic:

Disk protection checklists
Related reference
Upgrading the load source disk unit with device parity protection Upgrading the load source disk unit with local mirroring using non-configured disk units Upgrading the load source disk unit without disk protection