NSM シェルフで温度警告が報告され、自動的に回復します。

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環境

ONTAP 9
NS224
NSM100

問題

NS224 シェルフ 2および3で温度過昇警告が報告され、続いて両方のクラスターノード（Node-AおよびNode-B）からディスクシェルフ障害アラートが報告されました。

Sun Feb 15 21:21:05 +0530 [Node-A: dsa_worker5: ses.status.temperatureWarning:alert]: NS224NSM100 (S/N SHJSG2415000025) shelf 2 on channel 0x temperature warning for Temperature sensor 1:non-critical status; overtemperature warning. Current temperature: 43 C (109 F). This element is on the unknown location.
Mon Feb 16 03:08:24 +0530 [Node-A: dsa_worker0: ses.status.temperatureWarning:alert]: NS224NSM100 (S/N SHJSG2415000031) shelf 3 on channel 0x temperature warning for Temperature sensor 1:non-critical status; overtemperature warning. Current temperature: 43 C (109 F)This element is on the unknown location.
Mon Feb 16 07:26:15 +0530 [Node-A: statd: monitor.shelf.warning:error]:Fault reported on disk storage shelf attached to channel 0x. Check fans, power supplies, disks, and temperature sensors
Mon Feb 16 07:27:00 +0530 [Node-A: monitor: monitor.globalStatus.critical:EMERGENCY]: Disk shelf fault.

Sun Feb 15 21:21:05 +0530 [Node-B: dsa_worker5: ses.status.temperatureWarning:alert]: NS224NSM100 (S/N SHJSG2415000025) shelf 2 on channel 0x temperature warning for Temperature sensor 1: non-critical status; overtemperature warning. Current temperature: 43 C (109 F). This element is on the unknown location.
Mon Feb 16 03:08:24 +0530 [Node-B: dsa_worker5: ses.status.temperatureWarning:alert]: NS224NSM100 (S/N SHJSG2415000031) shelf 3 on channel 0x temperature warning for Temperature sensor 1: non-critical status; overtemperature warning. Current temperature: 43 C (109 F). This element is on the unknown location.
Mon Feb 16 07:04:16 +0530 [Node-B: statd: monitor.shelf.warning:error]: Fault reported on disk storage shelf attached to channel 0x. Check fans, power supplies, disks, and temperature sensors.
Mon Feb 16 07:27:00 +0530 [Node-B: monitor: monitor.globalStatus.critical:EMERGENCY]: Disk shelf fault.

シェルフのログにより、影響を受けた両方のシェルフで温度警告が断続的にアサートおよびクリアされたことが確認されました。

--------------------------------------------------------------
Shelflog start time: Fri Jul 11 21:23:37 GMT 2025
Controller Id: 539037331
Channel: 0x Shelf: 2
Module type: NSM100
Firmware rev: 0231
Shelf product id: NS224NSM100
Shelf Serial Number: SHJSG2415000025
Module A Serial Number: 042401001922
Log ID: SHJSG2415000025_A_0
Timestamp: Fri Feb 13 16:07:19 IST 2026
--------------------------------------------------------------
EVENT LOGS

Fri Feb 13 10:37:14 2026 (518+13:53:13.410); 0304002D; M0; ENC_MGT; env_control; 04;
Temperature zone 0 is now: warning hot set
Timestamp Fri Feb 13 10:46:21 2026(518+14:02:20.039)
Fri Feb 13 10:46:18 2026 (518+14:02:16.647); 0304002E; M0; ENC_MGT; env_control; 04;
Temperature zone 0 is now: warning hot cleared
Fri Feb 13 10:46:18 2026 (518+14:02:16.647); 03040031; M0; ENC_MGT; env_control; 04;
Temperature zone 0 is now: OK

--------------------------------------------------------------
Shelflog start time: Fri Jul 11 21:23:37 GMT 2025
Controller Id: 539037331
Channel: 0x Shelf: 3
Module type: NSM100
Firmware rev: 0231
Shelf product id: NS224NSM100
Shelf Serial Number: SHJSG2415000031
Module A Serial Number: 042402047863
Log ID: SHJSG2415000031_A_0
Timestamp: Thu Feb 12 00:40:35 IST 2026
--------------------------------------------------------------
EVENT LOGS
Wed Feb 11 19:10:28 2026 (516+22:33:06.562); 0304002D; M0; ENC_MGT; env_control; 04;
Temperature zone 1 is now: warning hot set
Wed Feb 11 19:10:28 2026 (516+22:33:06.576); 0304002E; M0; ENC_MGT; env_control; 04;
Temperature zone 2 is now: warning hot cleared
Wed Feb 11 19:10:28 2026 (516+22:33:06.576); 03040031; M0; ENC_MGT; env_control; 04;
Temperature zone 2 is now: OK
Wed Feb 11 19:10:32 2026 (516+22:33:10.644); 0304002E; M0; ENC_MGT; env_control; 04;
Temperature zone 1 is now: warning hot cleared
Wed Feb 11 19:10:32 2026 (516+22:33:10.644); 03040031; M0; ENC_MGT; env_control; 04;
Temperature zone 1 is now: OK
Wed Feb 11 19:10:32 2026 (516+22:33:10.682); 0304002D; M0; ENC_MGT; env_control; 04;
Temperature zone 2 is now: warning hot set

さらに、Shelf 3 は前面から熱風を排出していましたが、他のシェルフでは同様の現象は見られませんでした。