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Enabling or disabling support for out-of-order frame delivery for SnapMirror over Fibre Channel

Enabling support for out-of-order frame delivery on the SnapMirror source and destination systems changes the default system behavior to allow processing of out of order frames. When enabled, the out-of-order frame delivery makes use of multiple Inter-Switch Links for frame transfers and ensures uninterrupted SnapMirror transfers regardless of the order in which the frames are delivered.

Before you begin

You must ensure that SnapMirror transfer is not in progress.

About this task

Out-of-order frame delivery is not supported with QLogic ISP23xx FCVI cards.

Note: If you want to enable exchange-based policy on the Fibre Channel switches, you must enable out-of-order frame delivery on both the source and destination systems.

Steps

  1. Quiesce the SnapMirror destination by entering the following command: snapmirror quiesce
  2. Enable or disable out-of-order frame delivery on SnapMirror source and destination by entering the following command:fcnic ood [on|off|status] interface
    on
    Enables support for out-of-order frame delivery.

    Enable out-of-order frame delivery on both the source and destination systems.

    off
    Disables support for out-of-order frame delivery.

    Disable out-of-order frame delivery on both the source and destination systems.

    Note: By default, out-of-order frame delivery is disabled.
    status
    Displays the status of support for out-of-order frame delivery.

After you finish

Ignore the NIC reset notifications that are displayed after enabling out-of-order frame delivery.