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Takeover failed due to WAFL/RAID labels during manual ONTAP upgrade

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Category:
ontap-9
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core
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Applies to

  • ONTAP 9
  • Manual nondisruptive ONTAP upgrade

Issue

  • During an ONTAP upgrade, the following error appears after the update of the first node:

Takeover is not possible: The version of software running on each node of the SFO pair is incompatible, NVRAM log not synchronized

  • Attempting a takeover with the allow-version-mismatch option fails with the following error:

Error: command failed: Failed to initiate takeover. Reason: partner versions of WAFL and/or RAID are newer than this node.

  • The output of storage failover show reports:
::*> storage failover show
                              Takeover
Node           Partner        Possible State Description
-------------- -------------- -------- -------------------------------------
Node-01        Node-02        false    Connected to Node-02, Takeover is not 
                                       possible: The version of software 
                                       running on each node of the SFO pair
                                       is incompatible, NVRAM log not synchronized
Node-02        Node-01        false    Connected to Node-0, Takeover is not 
                                       possible: The version of software 
                                       running on each node of the SFO pair

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