HP XP20000XP24000 Disk Array - Manual (Page 24)

2-6 About Cross-OS File Exchange Operations
Hitachi USP V Cross-OS File Exchange User’s Guide
Label area
Datasets
Management area
MAINFRAME OPEN SYSTEM
No Access Read/Write
Cyl#0
Cyl# max.
Cyl# 0
Cyl# MAX.
VTOC
Figure 2-6 OPEN- x FMT Volume Structure (FXoto)
Note: When the mainframe OS is VSE, DFSORT cannot be used after an FX
volume is copied to another volume. Use the DITTO function for this
purpose.