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Dell EMC Metro node 7.1 Administrator Guide

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Storage-volume expansion method prerequisites

In order to expand a device or add a target for expansion using the storage-volume expansion method, the metro node virtual volume geometry must meet one of the following criteria:

  • The virtual volume is mapped 1:1 to the underlying storage volume.
  • The virtual volume is a multi-legged RAID 1 volume, and each of its smallest extents is mapped 1:1 to a back end storage volume.
  • Volume geometry is a combination of any of the geometries listed previously.

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