Removing disk units without disk protection

 

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 system to dedicated service tools (DST) mode to perform the tasks in this checklist.

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.	Evaluating the current configuration
2.___	Calculate the space requirements for the disk pools that are involved in disk removal.	Calculating disk space requirements
3.___	Use option 21 from the Save menu to save your entire system.	Save your system with the GO SAVE command
4.___	Restart your system 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.	Moving and removing disk units
6.___	Verify that your disk unit configuration is correct.	Evaluating the current configuration
7.___	Print your disk configuration to have available in case a recovery situation occurs.	Printing your disk configuration
8.___	Continue restarting your system.

 

Parent topic:

Disk pool checklists