Changing the Write Mode

You can change the for selected mirrored pairs on your .

When you select Metro mirror, the on the primary storage subsystem waits until data has been successfully copied to the secondary storage subsystem before sending and I/O completion back to the system. If Global copy is selected, the controller on the primary storage subsystem sends an I/O completion to the host system before the data has successfully been copied to the secondary storage subsystem.

  1. Select Logical Drive >> Enhanced Remote Mirroring >> Change >> Write Mode .
  2. Select one or more mirrored pairs.
  3. Select one of these write modes:
  4. Select the Add t o global mirror group check box 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.


    Important:

    Selecting this option might impact host I/O performance.

  5. To continue the mirror creation process, click Next.

Related Links:

  • Learn About Enhanced Remote Mirroring