Use the name of the dialog to set the way in which you want writes to the remote acknowledged to the system that sent the I/O request.
When is selected, the on the primarystorage subsystem waits until data has been successfully copied to the secondary storage subsystem before sending an I/O completion back to the host system. If is selected, the primary-side controller sends an I/O completion to the host system before the data has successfully been copied to the secondary storage subsystem.
Frequently Asked
Which write mode should I use?
What is a write consistency group?
Setting the Write Mode
Note:
If you select Global copy, the Add to global mirror group check box is available.
Note:
Selecting this option might impact host I/O performance.