Pubsets

If an FGG is created on an SF pubset, the user – just as for other files – has no control over where, i.e. on which disks of the pubset, the generations are stored.

When creating an FGG on an SM pubset, the user has to define the FGG either as a group of permanent generations or as a work file generation group (WORK-FILE attribute). This is done either implicitly by assigning a default storage class or explicitly by specifying the. Once assigned, the attribute cannot be modified. If the associated generations are assigned a storage class (e.g. at initial allocation with the FILE macro) or the storage class is changed, the WORK-FILE attribute in the storage class must match the attribute of the group.