Freeing up space on the load-source disk unit for an image catalog

Start of change IBM® i image catalog installation requires at least 2000 MB of free space on the load-source disk unit of your system. End of change

If you are using an image catalog to install software and have not yet verified how much free space you have available, perform these steps.

Enter the Work with Disk Status (WRKDSKSTS) command to determine if your load-source disk unit (unit 1) has at least 1536 MB of free space. If you have enough free space, you do not need to continue with this task.
If you do not have enough free space, go to step 2.
Enter the Start ASP Balance (STRASPBAL) command to end the allocation for storage in the load-source disk unit:
```
STRASPBAL TYPE(*ENDALC) UNIT(1)
```
Use the Check ASP Balance (CHKASPBAL) command to view the previous end allocations and see these messages:
- Unit 1 is selected for end allocation.
- ASP balancing is not active for ASP 1.
Enter the STRASPBAL command to move data off of the load-source disk unit:
```
STRASPBAL TYPE(*MOVDTA) TIMLMT(60)
```
Enter the WRKDSKSTS command to monitor when the disk unit has enough free space. If you do not have enough free space, use the CHKASPBAL command (step 3) to determine if the move data function is still active.

After the upgrade has been completed, enter the Start ASP Balance (STRASPBAL) command to resume the allocation of storage for the load-source disk unit. (This task is also included in Checklist: Completing the IBM i upgrade or replacement.)

STRASPBAL TYPE(*RSMALC) UNIT(1) 
STRASPBAL TYPE(*CAPACITY) ASP(1) TIMLMT(*NOMAX)