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dmapi(3)


NAME

  dmapi - Describes the contents of the Data Management Applications
  Programming Interface (DMAPI)


SYNOPSIS

  dmapi


DESCRIPTION

  DMAPI is a Common Applications Environment (CAE) standard that allows data
  management applications to interface with the underlying operating system.
  An example of a data management application is a hierarchical storage
  manager (HSM), which can use DMAPI features to migrate data to and from
  tertiary storage as well as to track file information.

  The following DMAPI functions are supported in Tru64 UNIX V5.1A:

       dm_create_session
       dm_create_userevent
       dm_destroy_session
       dm_find_eventmsg
       dm_get_config
       dm_get_dmattr
       dm_get_events
       dm_get_fileattr
       dm_get_region
       dm_getall_sessions
       dm_getall_tokens
       dm_handle_cmp
       dm_handle_free
       dm_handle_is_valid
       dm_handle_to_fshandle
       dm_init_service
       dm_path_to_fshandle
       dm_path_to_handle
       dm_probe_hole
       dm_punch_hole
       dm_query_session
       dm_read_invis
       dm_release_right
       dm_remove_dmattr
       dm_request_right
       dm_respond_event
       dm_set_disp
       dm_set_dmattr
       dm_set_eventlist
       dm_set_fileattr
       dm_set_region
       dm_set_return_on_destroy
       dm_sync_by_handle
       dm_write_invis

  The following events are supported in Tru64 UNIX V5.1A:

       read event
       write event
       truncate event
       destroy event

  These optional DMAPI features are provided in Tru64 UNIX V5.1A:

       hole punching
       persistent managed regions
       persistent data attributes


NOTES

  The CAE DMAPI standard can be found at:

  http://www.opengroup.org/publications/catalog/c429.htm#medium2

  In the current DMAPI implementation, asynchronous event posting is reliable
  in all but the most unusual cases. For more information, see the CAE DMAPI
  standard under Event Types.


RESTRICTIONS

  An AdvFS Advanced Utilities license is required for the use of DMAPI.


SEE ALSO

  Commands: chfsets(8)

  AdvFS Administration

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