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Dell PowerStore Protecting Your Data

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Using jumbo frames with remote systems

If you are using jumbo frames, ensure that the jumbo frames are configured on both sides of the remote system connection (PowerStore ports and switch ports), and on all ports between the two storage arrays. MTU size mismatch results in a warning in the following cases:

  • Configuring a remote system connection.
  • Modifying remote system connection settings.
  • Using the Verify and update option.
NOTE:It is not recommended to change the MTU size of a storage network when a replication session is active.
NOTE:If the MTU size is changed after the remote system was created, it is required to disable and then enable (bounce) the network ports of the switch that is connected to the PowerStore replication-tagged ports, to apply the change on the remote system.

To change the MTU size:

  1. Pause the replication session.
  2. Change the storage network MTU size (Settings > Networking > Cluster MTU).
  3. Run Verify and update on the remote system to confirm that no warning is issued.
  4. Resume the replication session.

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