Administrator's Guide

Registering an Application Programming Interface to the Server

Workstation users can request ADSM services by using an application that uses the ADSM application programming interface (API). An administrator uses the REGISTER NODE command to register the workstation as an ADSM client.

Understanding How the Compression Option Is Set

For applications that use the ADSM API, compression can be determined by:

• An administrator during registration who can:
  • Require that files are compressed
  • Restrict files from being compressed by the client
  • Allow the application or client user to determine the compression status

• The client options file. If an administrator does not set compression on or off, ADSM checks the compression status set in the client options file. The client options file is required, but the API user configuration file is optional.

• One of the object attributes. When an application sends an object to the server, some object attributes can be specified. One of the object attributes is a flag that indicates whether or not the data has already been compressed. If the application turns this flag on during either a backup or an archive operation, then ADSM does not compress the data a second time. This process overrides what the administrator sets during registration.

For more information on setting options for the API and on controlling compression, see ADSM V3 Using the Application Program Interface.

Understanding How the File Deletion Option Is Set

For applications using the ADSM API, the file deletion option can be set by:

• An administrator during registration

  If an administrator does not allow the file deletion, then an ADSM administrator must delete any objects or file spaces associated with the workstation from server storage.

  If an administrator allows file deletion, then ADSM checks the client options file.

• An application using the ADSM API deletion program calls

  If the application uses the dsmDeleteObj or dsmDeleteFS program call, then objects or files are marked for deletion when the application is executed.