
2-16 About Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
外部
ボリューム
: I/O
External Storage System
Legend
: Internal volume where the external volume is mapped
Local Storage System
External Storage System Local Storage System
External
Port B
Port
WWN B
Internal
Volum e External
Volume
External
Port C
Port
WWN C
Path
Priority 2
Internal
Volum e
Path
Priority 3
External
Port B
Port
WWN B External
Volume
External
Port C
Port
WWN C
Path
Priority 3
Path
Priority 1
Path
Priority 2
Port
WWN A
External
Port A
Path
Priority 1
External
Port A
Port
WWN A
Error
Figure 2-7 When the Path Mode is Single Mode
• When the path mode is Single mode and there is at least one alternate