Upgrading the load source disk unit with local mirroring using non-configured 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.
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.
Disk configuration questions | Disk configuration answers |
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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).
Tip: Mark these disk units with tape to remember their locations.
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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.
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 two non-configured disk units with a capacity of at least 70-GB? |
Yes / No |
Do you know how to physically install and remove disk units from your system or partition? | Yes / No |
Were 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
Task | What to do |
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1. | Back up your system using the GO SAVE command from the IBM i command line. |
2. | Set the IPL mode to MANUAL. Attention: Manual
IPL is required for Dedicated Service Tools (DST).
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3. | Restart your system or partition to Dedicated Service Tools (DST) by entering
the following command from the IBM i command line.
Note: Verify that you are in manual mode before
you restart your system.
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4. | Begin Dedicated Service Tools.
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5. | Suspend Mirroring on the mirrored load source
disk unit (unit 1).
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6. | Label the load source and mirrored load source disk units using the physical locations determined in the Disk Configuration questions. If the physical locations were 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. |
7. | Confirm that non-configured disk units are available as replacements for the
load source disk unit and mirrored load source disk unit.
Note: Ensure that there are two disk units of equal capacity and are at least
70-GB.
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8. | Determine the physical locations of the non-configured disk units that are
replacing the load source and mirrored load source disk units that are documented in task 7 step 5.
Determine the disk unit locations using Dedicated Service Tools (DST).
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9. | For internal disk units, locate the physical locations of the
non-configured disk units listed in task 8 step 7 through 8 and label each. Tip: Mark
these disk units with tape to remember their locations.
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10. | Power off the system or partition.
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11. | Remove the mirrored load source disk unit.
Note: This is the mirrored load source disk unit that was marked in task 6.
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12. | Power on your system or partition and begin Dedicated Service Tools (DST).
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13. | Copy the load source disk unit to the non-configured load source replacement
disk unit written down in task 7 step 5.
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14. | Power off the system or partition.
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15. | Remove the original load source disk unit.
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16. | Use the HMC to change the I/O tag.
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17. | Power on your system or partition and begin
Dedicated Service Tools (DST).
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18. | Replace the configured disk unit.
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19. | Examine the configuration.
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20. | 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.