Hitachi MK-96RD626-07 - Manual (Page 51)

About Universal Volume Manager Operations 2-31
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Mapping
Local
Storage
System
（
RCU）
External
Storage System
Copying data in the P-VOL of the local storage system that is connected
as MCU to the S-VOL of the local storage system that is set as RCU.
The S-VOL is a mapped external volume.
Local
Storage
System
（
MCU）
TrueCopy
P-VOL
TrueCopy
S-VOL
RCU Target
Port
Initiator
Port
: Internal volume
: Internal volume where the external volume is mapped
: External volume
Legend
: Data copy direction
Figure 2-13 Example of the TrueCopy Operation