This topic describes volume list information specific to universal
disk format (UDF) media.
More than one file in a multi volume set can logically span volumes, but
only one file per volume can span to the next volume in the volume list. The
last volume in the set accepts additional save requests if space is available.
The system maintains the continued flags for spanned files.
- Volume1 (Sequence#=1, Starting volid=Volume1, Last volume in set=No)
- File1 (Continued from previous volume=NO, Continued on next volume=NO)
- File2 (Continued from previous volume=NO, Continued on next volume=NO)
- File3 (Continued from previous volume=NO, Continued on next volume=YES)
- Volume2 (Sequence#=2, Starting volid=Volume1, Last volume in set=No)
- File3 (Continued from previous volume=YES, Continued on next volume=NO)
- File4 (Continued from previous volume=NO, Continued on next volume=NO)
- File5 (Continued from previous volume=NO, Continued on next volume=YES)
- Volume3 (Sequence#=3, Starting volid=Volume1, Last volume in set=No)
- File5 (Continued from previous volume=YES, Continued on next volume=YES)
- Volume4 (Sequence#=4, Starting volid=Volume1, Last volume in set=Yes)
- File5 (Continued from previous volume=YES, Continued on next volume=NO)
- File6 (Continued from previous volume=NO, Continued on next volume=NO)
Note: Space permitting, additional saves are allowed to Volume4.
Note: A restore operation begins on the volume that contains the first occurrence
of the specified file. For example, you can restore data from File4 on Volume2
without processing Volume1.
Note: The volume set for UDF formatted media described in this section is
not related to the volume set or multi volume support that is defined in format
specifications for UDF (ECMA 167 3rd Edition or UDF Revision 2.01). Support
for volume sets as defined by these specifications is not currently provided
by i5/OS™.
