If the data set was non-SMS-managed when it migrated and is assigned
a storage class with GUARANTEED SPACE during recall, it is assigned
to a volume in a storage group that contains GUARANTEED SPACE data
sets.
If the data set was SMS-managed when it migrated but did not have
GUARANTEED SPACE, the volumes from which it migrated might not be
in a storage group that receives GUARANTEED SPACE requests. To avoid
errors, you must perform one of the following actions before the recall:
- Change the target storage class with GUARANTEED SPACE to map to
a storage group that contains the original volumes.
- Add the original volumes to a storage group mapped to by the target
storage class with GUARANTEED SPACE.