This checklist shows the sequence of tasks that you use to remove one or more disk units from your system when the disk units do not have device parity protection. Use these tasks when you are permanently removing disk units from your system. Do not use these tasks when you are repairing or replacing a failed disk unit. You must restart your server to dedicated service tools (DST) mode to perform the tasks in this checklist.
Attention: When you perform the tasks in this checklist, the system
moves large amounts of data. Make sure that you have completely saved your system in the
event that you need to recover from an error situation.
Before you begin
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.
Most tasks in the checklist include links to other topics. Refer to these
topics if you need more information about how to perform a particular task.
| Task | What to do | Where to learn more |
|---|---|---|
| 1.___ | Display your current disk configuration. | Evaluate the current configuration |
| 2.___ | Calculate the space requirements for the disk pools that are involved in disk removal. | Calculate disk space requirements |
| 3.___ | Use option 21 from the Save menu to save your entire system. | Save your server with the GO SAVE command |
| 4.___ | Restart your server and choose the option to use dedicated service tools (DST). | "How to Start Dedicated Service Tools (DST)"
in Backup and
Recovery  . From the taskpad in iSeries™ Navigator, select Open iSeries Navigator
Service Tools. |
| 5.___ | Remove disk units that you plan to remove from the system. | Move and remove disk units |
| 6.___ | Verify that your disk unit configuration is correct. | Evaluate the current configuration |
| 7.___ | Print your disk configuration to have available in case a recovery situation occurs. | Print your disk configuration |
| 8.___ | Continue restarting your server. | Â |