CFSHELF-1549：NS224シェルフPCM 1 DC障害が検出されました

問題

NS224 internal shelf logs reporting power issues, being cleared after some seconds. Example:
Sun Jan 7 13:42:33 2024 ( 35+16:53:52.867); 030B0072; S1; ENC_MGT; power_manager; 02; Setting AC MISSING MIN REDUNDANT alarm for PCM 2 Sun Jan 7 13:42:33 2024 ( 35+16:53:52.867); 030B005B; S1; ENC_MGT; power_manager; 04; PCM 2 faults indicate loss of power (1600W) Sun Jan 7 13:42:34 2024 ( 35+16:53:53.821); 030B0072; S1; ENC_MGT; power_manager; 02; Setting AC MISSING NON REDUNDANT alarm for PCM 2 Sun Jan 7 13:42:34 2024 ( 35+16:53:53.821); 030B0076; S1; ENC_MGT; power_manager; 02; Clearing PSU Fail (min-redundant) alarm Sun Jan 7 13:42:34 2024 ( 35+16:53:53.821); 030B0082; S1; ENC_MGT; power_manager; 02; Clearing PSU AC Missing (min-redundant) alarm Sun Jan 7 13:42:35 2024 ( 35+16:53:54.821); 030B005C; S1; ENC_MGT; power_manager; 04; PCM 2 fault cleared, assume power restored (1600W) Sun Jan 7 13:42:35 2024 ( 35+16:53:54.821); 030B0078; S1; ENC_MGT; power_manager; 02; Clearing PSU Fail (non-redundant) alarm Sun Jan 7 13:42:35 2024 ( 35+16:53:54.821); 030B0084; S1; ENC_MGT; power_manager; 02; Clearing PSU AC Missing (non-redundant) alarm
No power events,errors, alerts, etc. reported by ONTAP
Shelves are being powered and working normally
This issue can be noticed after a resolved power issue in the datacenter