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HBA port negotiates to 8Gbit instead of 16Gbit

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HW
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Applies to

  • AFF/FAS
  • ONTAP 9

Issue

  • FC HBA card's port negociates to 8Gbit instead 16Gbit
  • The rest of the ports on same HBA card negotiates to 16Gbit
  • No specific alert in EMS for this issue, as the port reports online , please see below output from Sysconfig -a

slot 2: Fibre Channel Target Host Adapter 2c
                (Emulex LPe35000 (LPe35004) rev. 13, <ONLINE>)         

  •     The speed difference on ports of same HBA card can be checked in FCP-ADAPTER.XML

Node: <Node name>
Adapter: 2c
Data Link Rate (Gbit): 8  <--------

  • Issue persists post cable and SFP reseat/replace

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