ディスクシェルフの電源装置で冷却ファンのエラーが検出されました

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環境

すべてのディスクシェルフ

問題

PSU警告LEDはアンバーです。
システムでAutoSupport（ASUP）アラートが生成され、エラー SHELF COOLING UNIT FAILEDが表示されました

EMS
[node-01:dsa_worker1:ses.status.fanWarning:notice]: DS224-12 (S/N xxxxxxxxxxxx) shelf 24 on channel 0b cooling fan warning for Cooling element 1: not installed. This module is on the rear of the shelf on the lower left power supply.

[node-01:dsa_worker1:callhome.shlf.fan.warn:error]: Callhome for SHELF COOLING UNIT FAILED

[node-01:dsa_worker1:ses.status.fanWarning:notice]: DS224-12 (S/N xxxxxxxxxxxx) shelf 24 on channel 0b cooling fan warning for Cooling element 2: not installed.

[node-01:dsa_worker1:ses.status.temperatureWarning:alert]: DS224-12 (S/N xxxxxxxxxxxx) shelf 24 on channel 0b temperature warning for Temperature sensor 6: not installed.

[node-01:dsa_worker1:ses.status.temperatureWarning:alert]: DS224-12 (S/N xxxxxxxxxxxx) shelf 24 on channel 0b temperature warning for Temperature sensor 7: not installed.

Additional sysconfig output indicated:

環境

Cooling Units by element:

[1] Unavailable

[2] Unavailable

Shelf temperatures by element:

[6] Unavailable

[7] Unavailable

Temperature thresholds by element:

[6] High critical: Unavailable; high warning: Unavailable

Low critical: Unavailable; low warning: Unavailable

[7] High critical: Unavailable; high warning: Unavailable

Low critical: Unavailable; low warning: Unavailable

storage shelf show -instance コマンドに次のエラーが表示されます。

::> storage shelf show -shelf-id 24 -instance

      Shelf Name: 4.24
       Stack ID: 4
       Shelf ID: 24
       Shelf UID: 50:0a:09:80:08:40:50:40
     Serial Number: SHJSGxxxxxxxxxx
      Module Type: IOM6
         Model: DS4246
     Shelf Vendor: NETAPP
      Disk Count: 24
    Connection Type: SAS
      Shelf State: Online
        Status: Critical

Fan "2" is running below normal RPM threshold. Fan is located in the rear of the shelf on the upper left power supply.