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SASポートPHYで誤った速度が報告される

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環境

  • ONTAP 9
  • FAS/AFFシステム

問題

  • SASポートのステータスがデグレードと報告されます。

Cluster1::> storage port show

                    Speed            VLAN
Node         Port Type  Mode   (Gb/s) State   Status    ID
------------------ ---- ----- ------- ------ -------- --------- ----
Cluster1-01
          0a   SAS   -       12 enabled  online     -
          0b  SAS   -       12 enabled  online-degraded -
          0c   SAS   -       12 enabled  online     -
          0d   SAS   -       12 enabled  online     -

  • sysconfig -a 出力からチェックすると、一部のPHYの速度が低下します。

::> system node run -node <node-name> -command sysconfig -a

 slot 0: SAS Host Adapter 0b (PMC-Sierra PM8072 rev. C, SAS, <UP>)
         Firmware rev:     03.08.09.00
         Base WWN:       5:00a098:00e1428:a4
         Temperature:     Not Available
         Phy State:      [8] Enabled, 12.0 Gb/s
                  [9] Enabled, 6.0 Gb/s
                  [10] Enabled, 6.0 Gb/s
                   [11] Enabled, 12.0 Gb/s      

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