In an environment with disk and tape storage pools in the primary pool hierarchy, data should be migrated automatically when the disk storage pool gets full. What has to be adjusted in the definitions of the primary storage pool to avoid an out-of-space condition during backup?

A.
Set thelowmig threshold to a value below 10%.

B.
Run a daily administrative schedule to set thehighmig threshold to 100%.

C.
Adjust the number of migration tasks to the number of tape drives available and free for the migration process.

D.
Prevent migration during the backup task by specifying the valuenomig=backup in the storage pool definitions.