The following types of files cannot be migrated to a background level:
files not yet contained in a save file (HSMS or ARCHIVE), if the BACKUP-MANDATORY operand in the MODIFY-HSMS-PARAMETERS statement has the value *YES
files added to the except file (see section "Except file")
open files
temporary files
files without a space allocation
files under the user ID SYSHSMS
Files on Net-Storage
files on private volumes
file generation groups (FGGs)
system files such as the catalog (but not IPLR or the startup file)
files to be repaired.
files cataloged with:
AVAILABILITY=*HIGH
MIGRATION=* INHIBITED and FILE-INHIBIT=* RESPECTED in the MIGRATE-FILES statement or in the last MODIFY-SM-PUBSET-PARAMETERS statement of the SM pubsets in question or in the last MODIF-HSMS-PARAMETERS statement.
MIGRATION=*FORBIDDEN
If a user includes any file in an HSMS statement that is exempted from migration for any of the above-mentioned reasons, the system will issue appropriate warnings relating to those files. If, however, *OWN or *ALL is specified, no such warnings will be displayed.
Example:
% HSM0550 WARNING: SOME FILES NOT MIGRATED (REASON 'NET-STORAGE')