HP XP7 for Compatible FlashCopy Mirroring User Guide (TK940-96001)

Figure 1 Multiple copy targets per source supported
Figure 2 Cascaded copy relationship not supported
Copy modes
When you establish a Compatible FlashCopy relationship, you select the mode, COPY or NOCOPY,
for the copy operation.
• COPY: When you select COPY mode, all data in the S-VOL is copied to the T-VOL. This process
is called background copying. When the background copying is complete, the relationship
is automatically withdrawn.
• NOCOPY: When you select NOCOPY mode, the background copying operation is not
performed. Data is moved from the source to the target volume based on access to the S-VOL
or T-VOL as described in the next paragraph. A NOCOPY relationship can be converted to
a COPY relationship (for example, NOCOPY2COPY).
Establishing a Compatible FlashCopy relationship 9