Uncritical handling of migrated files

• Files can be deleted regardless of the level on which they are stored (S0, S1 or S2). For migrated files, this merely means that their catalog entry is deleted.

• File attributes (protection attributes, passwords etc.) can be changed. Such changes take effect immediately and are retained even after recalling the data.

• If the size of a migrated file is changed (SPACE operand of the MODIFY-FILE-ATTRIBUTES command), only the catalog entry is modified initially. This does not influence the storage space situation until the data has been recalled to the processing level.