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ONTAPアップグレード中のRDMA接続ダウン

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環境

ONTAP 9

問題

  • ONTAPアップグレード中に、1つのノードがONTAPバージョンをアップグレードするものの、起動に失敗してテイクオーバー/ギブバックを続行できない

Cluster::*> cluster image show
Node          Current Version      Installation Date
-------------------- ----------------------- -------------------
Node-01      9.16.1P6          xx/xx/xxxx 21:24:12
Node-02      9.16.1P11         xx/xx/xxxx 16:43:20

  • Storage Failover Showを確認すると、相互接続の問題が確認できます:


Cluster::> sto fail show
(storage failover show)
Node       Partner     Possible State Description
-------------- -------------- -------- -------------------------------------
Node-01   Node-02   false   Waiting for Node-02, Takeover is
                                not possible: Storage failover
                                interconnect error, NVRAM log not
                                synchronized, Disk inventory not
                                exchanged
Node-02   Node-01   false   Waiting for Node-01, Takeover is
                                not possible: Storage failover
                                interconnect error, NVRAM log not
                                synchronized, Disk inventory not
                                exchanged

  • 相互接続のステータスを確認すると、リンクはアップしていますが、RDMAはダウンしていることがわかります

Cluster::*> ha interconnect status show
(system ha interconnect status show)
Node: Node-01
Link 0 Status: up
Link 1 Status: up
Is Link 0 Active: true
Is Link 1 Active: true
IC RDMA Connection: down


Node: Node-02
Link 0 Status: up
Link 1 Status: up
Is Link 0 Active: true
Is Link 1 Active: true
IC RDMA Connection: down


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