Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (s and S) statvfs64(2)
The fields in this structure have the following meanings and content:
f_bsize Fileset block size.
For Contains
Regular file 4096
Directory 4096
FIFO 4096
AF_UNIX socket 4096
/dev/null 4096
Object in /G 4096
/G 4096
/G/ztnt/#ptynn 4096
/E 4096
f_frsize Fundamental file system block size.
For Contains
Regular file 4096
Directory 4096
FIFO 4096
AF_UNIX socket 4096
/dev/null 4096
Object in /G 4096
/G 4096
/G/ztnt/#ptynn 4096
/E 4096
f_blocks Total number of blocks in fileset, in units of f_frsize.
For Contains
Regular file Number of blocks on all volumes ever used
in the fileset.
Directory Number of blocks on all volumes ever used
in the fileset.
FIFO Number of blocks on all volumes ever used
in the fileset.
AF_UNIX socket Number of blocks on all volumes ever used
in the fileset.
/dev/null Number of blocks on all volumes ever used
in the fileset.
Object in /G Number of blocks on the volume contain-
ing the object.
/G 0
/G/ztnt/#ptynn 0
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