HP XP P9500 Storage - Manual (Page 134)

Description Item
If you select Only M-VOL when creating a pair, the data set that is updated by CFW in the
M-VOL cannot be used in the R-VOL. To use this data set in the R-VOL, release pair and
format the data set.
This field displays only when the M-VOL is selected.
Shows whether the main system will suspend the pair if the remote system cannot execute
DFW (DASD fast write) to the R-VOL. DFW to R-VOL
This field displays only when the M-VOL is selected.
•
DFW required indicates that the pair will be suspended when DFW data to the R-VOL
is blocked.
• DFW not required indicates that the pair will not be suspended when DFW data to the
R-VOL is blocked.
If a Continuous Access Synchronous Z pair is established using PPRC commands, the DFW
to R-VOL option is set to the DFW not required setting.
If the box is checked, the Pair Operation window updates when the Detailed Information
dialog box closes. Refresh the Pair Operation
window after this window
is closed:
Add Pair dialog box
134 Continuous Access Synchronous Z GUI reference