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Why cf.hwassist.DefaultPrtnrAddr raised after node reboot indicates HWassist IP changed to an address other than the node-mgmt?

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • Hardware-assisted takeover (HWassist)

Answer

HWassist selects the first available network although it primarily looks for node management LIFs when the following events happen

  • Node reboot
  • Network config changes (e.g., LIF transitions, failover group updates)
  • When the HWassist IP is set manually
  • HA-interconnect reconnection

Example: When a LIF other than the node management LIF (e.g., intercluster LIF) comes up first and is deemed reachable during nood reboot, HWassist selects the intercluster LIF instead

[Node-02: cf_worker: cf.hwassist.empty.MgmtAddr:error]: Cannot find hardware-assist node management IP address for partner node.
[Node-02: cf_worker: cf.hwassist.DefaultPrtnrAddr:notice]: The system automatically chose Intercluster-LIF as the hardware-assisted takeover partner address.

Additional Information

  • There is no functional risk to HWassist capability and functionality remains operational during IP changes.
  • To make HWassist always use the node management LIF, set the HWassist IP manually whenever you detect that it has changed. 
  • The following CLIs can be used to configure and check the functionality of HWassist.
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