Checklist 3: Actions for load-source disk unit failure

This checklist shows the sequence of steps you should use to recover after a load-source disk unit failure after a complete data loss.

This checklist should be used for the following problem situation:

Failed unit:: Load source unit
Data loss:: All
User ASP configured:: No

Before you begin your recovery, make a copy of this checklist. Fill in the appropriate areas as you and the service representative perform the recovery steps. This checklist provides an important record of your recovery actions. It can help you to diagnose any problems that occur after the recovery. It might also be useful in evaluating your backup strategy.

Most steps in the checklist include references to other topics in this document. Refer to these tasks if you need more information about how to perform a particular step. You might not need to perform some steps, such as restoring changed objects, if they do not apply in your situation.

Note: When your load source unit is failed and you are recovering from distribution media with LAN Console configured, you might be required to use another console type for your recovery.

Table 1. Recovery checklist for disk failure–Checklist 3
Task	What to do	Where to read more about it
Actions to Be Performed by the Service Representative
___ Task 1	Attach the new disk unit.
___ Task 2	Prepare to load the Licensed Internal Code.	Preparing for loading the Licensed Internal Code.
___ Task 3	Install the Licensed Internal Code using option 3 (Install Licensed Internal Code and Recover Configuration).	Loading the Licensed Internal Code.
___ Task 4	Recover the disk configuration (assignment of disks to auxiliary storage pools (ASPs) and protection).	Recovering your disk configuration.
Actions to be performed by the user
___ Task 5	Restore the operating system, beginning with Task 1: Starting to restore the operating system. You are performing a complete restore operation.	Restoring the operating system, task 1 through task 6.
___ Task 6	If you restored the operating system using distribution media, some system information, such as access path recovery times and the system reply list, was returned to default values. Set these values correctly.	Recovering system information.
___ Task 7	Use the Choosing the procedure to recover user information topic to determine the correct procedure for recovering user information. You will need to recover all user data.