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Will a SAN lif migrate to a surviving port after a link failure on its current port ?

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ontap-9
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san
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Applies to

  • ONTAP 9.x
  • Clustered Data ONTAP 8.x

Answer

A SAN LIF does not migrate (unless you move it manually after the link failure). Instead, multipathing technology on the host diverts traffic to a different LIF. For more information, see the SAN Administration Guide.

Additional Information

Considerations for LIFs in cluster SAN environments

  • Initiators must use Multipath I/O (MPIO) and asymmetric logical unit access (ALUA) for failover capability for clusters in a SAN iSCSI or FC environment because SAN does not support automatic failover for LIFs.
  • At least one SAN LIF of the appropriate protocol must be configured on each node that hosts a mapped LUN and the node's HA partner.You can configure two LIFs per node, one for each fabric being used with FC and to separate Ethernet networks for iSCSI.
  • Some options are not applicable for iSCSI or FC. For example, you cannot use IP addresses with FC.