OSI/FTAM Programming Guide

ISO FTAM Concepts
HP NonStop OSI/FTAM Programming Guide—528612-001
2-15
Service Classes
Table 2-3. FTAM Service Classes and Associated Functional Units
Service Classes
Mandatory Functional
Units Optional Functional Units
File transfer Kernel Limited file management
Read, Write, or both Enhanced file management
Grouping Recovery
Restart data transfer
File access Kernel Limited file management
Read Enhanced file management
Write Grouping
File access FADU locking
Recovery
Restart data transfer
File management Kernel Enhanced file management
Limited file management
Grouping
File transfer and management Kernel Enhanced file management
Read, Write, or both Recovery
Limited file management Restart data transfer
Grouping
Unconstrained Kernel Read
Write
File access
Limited file management
Enhanced file management
Grouping
FADU locking
Recovery
Restart data transfer
Note. NonStop FTAM does not support the FADU-locking, recovery, and restart-data-transfer
functional units, or the unconstrained service class.