ヘルスモニタによってShelfPSUFailure_Alertが報告される

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環境

FAS / AFFシステム
ディスクシェルフ
電源装置（PSU）
ヘルスモニタプロセスschm：ShelfPSUFailure_Alert

問題

電力問題のための散発的なコールホームが見られる
イベントログでは次のアラートが報告されます。

[Node-02: schmd: hm.alert.raised:alert]: Alert Id = ShelfPSUFailure_Alert , Alerting Resource = 16350XXXXXXXX448 raised by monitor system-connect [Node-02: statd: monitor.shelf.fault:alert]: Critical fault reported on disk storage shelf attached to channel 0b. Check fans, power supplies, disks, and temperature sensors.

出力 storage show fault は次のように表示されます

Enclosure Status: unrecoverable Channel: 0b Shelf: 11 Shelf Type: DS224-12 Product Serial Number: SHFFGXXXXXXXXX Module Type: IOM12 Power Supplies: Element Status Status Bytes Status Descriptions 1: CRITICAL 02,00,00,F3 DC FAIL, AC FAIL, OFF, RQSTED ON, FAIL 2: OK 01,00,00,20 RQSTED ON

シェルフログにPSUを搭載した問題：

Tue Mar 5 02:05:34 2024 ( 730+01:52:26.196); 030B004F; M0; ENC_MGT; power_manager; 02; HAL indicates PSU FAILURE fault on PCM 1 Tue Mar 5 02:05:34 2024 ( 730+01:52:26.196); 030B0050; M0; ENC_MGT; power_manager; 02; HAL indicates PSU TURNED OFF fault on PCM 1 Tue Mar 5 02:05:34 2024 ( 730+01:52:26.196); 030B0053; M0; ENC_MGT; power_manager; 02; HAL indicates PSU AC FAILURE fault on PCM 1 Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B006F; M0; ENC_MGT; power_manager; 02; PCM 1 PCM FAILURE Fault Detected Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B0070; M0; ENC_MGT; power_manager; 02; Re-asserting FAIL NON REDUNDANT alarm for PCM 1 Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B006F; M0; ENC_MGT; power_manager; 02; PCM 1 TURNED OFF Fault Detected Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B0072; M0; ENC_MGT; power_manager; 02; Setting AC MISSING NON REDUNDANT alarm for PCM 1 Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B006F; M0; ENC_MGT; power_manager; 02; PCM 1 AC FAILURE Fault Detected Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B0070; M0; ENC_MGT; power_manager; 02; Re-asserting AC MISSING NON REDUNDANT alarm for PCM 1 Tue Mar 5 02:05:34 2024 ( 730+01:52:26.227); 030B005D; M0; ENC_MGT; power_manager; 04; PCM 1 faults indicate loss of local fan power Tue Mar 5 02:05:39 2024 ( 730+01:52:31.233); 030B0060; M0; ENC_MGT; power_manager; 04; PCM 1 local fan power restored Tue Mar 5 02:05:39 2024 ( 730+01:52:31.233); 030B0084; M0; ENC_MGT; power_manager; 02; Clearing PSU AC Missing (non-redundant) alarm

PSUを取り付け直しても問題が持続する