Create Enhanced Remote Mirroring Wizard - Set Write Mode

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

  1. Select one of these write modes:


    Note:

    If you select Global copy, the Add to global mirror group check box is available.

  2. If you want to make sure that writes to the secondary storage subsystem are completed in the same order as on the primary storage subsystem, select the Add to global mirror group check box.


    Note:

    Selecting this option might impact host I/O performance.

  3. Click Next.

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