With ACS ((Alias Catalog Service) it is possible to access files and JVs under names which are, within certain limits, freely selectable. Users thus have the option of defining the files/JVs they require and storing them in special catalogs, the alias catalogs, together with the assignment to the real file/JV. Files for which aliases are defined can be subsequently processed by specifying only the alias. Alias catalogs are managed locally for each task.
Detailed information on ACS is provided in the “Introductory Guide to DMS” [19].
Command | Meaning |
ADD-ACS-SYSTEM-FILE | Declares a new identifier for an ACS system file, and assigns this identifier to a file name |
ADD-ALIAS-CATALOG-ENTRY | Adds an entry to the alias catalog of the current task and defines where the substitution applies. |
HOLD-ALIAS-SUBSTITUTION | Interrupts the ACS function for the current task. |
LOAD-ALIAS-CATALOG | Transfers entries saved in an AC file to the alias catalog. |
MODIFY-ACS-OPTIONS | Modifies options (for local task). |
MODIFY-ACS-SYSTEM-FILE | Modifies the definition of an AC system file |
MODIFY-ALIAS-CATALOG-ENTRY | Modifies an existing entry in the alias catalog. |
PURGE-ALIAS-CATALOG | Deletes the alias catalog of the current task |
REMOVE-ACS-SYSTEM-FILE | Deletes the definition of an AC system file |
REMOVE-ALIAS-CATALOG-ENTRY | Deletes an existing entry from the alias catalog. |
RESUME-ALIAS-SUBSTITUTION | Resumes the alias substitution function |
SET-FILE-NAME-PREFIX | Defines a prefix for file/JV names and specifies where the prefix applies. |
SHOW-ACS-OPTIONS | Displays options (for local task). |
SHOW-ACS-SYSTEM-FILES | Shows the predefined alias catalog system files. |
SHOW-ALIAS-CATALOG-ENTRY | Displays selected alias catalog entries (on SYSOUT). |
SHOW-FILE-NAME-PREFIX | Shows the current prefix and its scope. |
START-ACS | Activates ACS system-wide |
STORE-ALIAS-CATALOG | Stores the alias catalog in a file |
Table 16: Overview of ACS commands