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PSQN | R750 | R7525 | FAN0029:後方硬碟固定框架風扇錯誤

Summary: 搭載後方 4x2.5 吋硬碟背板的 Dell PowerEdge R750 和 R7525 伺服器,可能會在系統事件和生命週期記錄中回報風扇錯誤。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

搭載後方 4x2.5 吋硬碟背板的 Dell PowerEdge R750 和 R7525 伺服器具有三個額外後方系統風扇 (7、8、9)。在一般系統運作下,這些風扇可能會重複回報已移除,並重新插入伺服器。這些錯誤事件會記錄在系統事件記錄 (SEL) 和 iDRAC9 生命週期記錄中。

現場最終使用者可以檢查伺服器背面,透過目視觀察伺服器左上角三分之一的 2.5 吋磁片磁碟機插槽,以識別後方 4x2.5 吋硬碟背板是否存在。查看下圖,以識別 4x2.5 吋背板固定框架。 
R750-Rear-Image.png
遠端最終使用者可透過 iDRAC9 Web 使用者介面識別後方的 4x2.5 吋硬碟背板是否存在。移至儲存裝置 > 概觀 > 機櫃。展開可用的機櫃詳細資料,並檢查機櫃位置 = 後方。 
 
Storage-RearBP.png

出現此問題的系統可能會出現事件迴圈,指出後方風扇 7-9 遺失,並在約五秒後顯示插入。在 SEL 和生命週期記錄中會記錄這些 FAN0029 和 FAN0028 事件,如下所示。

系統事件記錄範例:
 
2022-02-15 01:32:10        3076        Fan 7A is either removed, incorrectly installed, or not present.
2022-02-15 01:32:10        3077        Fan 8A is either removed, incorrectly installed, or not present.
2022-02-15 01:32:10        3078        Fan 9A is either removed, incorrectly installed, or not present.

2022-02-1501:32:15        3079        Fan 7A inserted.
2022-02-1501:32:15        3080        Fan 8A inserted.
2022-02-1501:32:15        3081        Fan 9A inserted.
 
生命週期記錄範例:
 
2022-02-15 01:32:15        3324        FAN0029        Fan 7A is either removed, incorrectly installed, or not present.
2022-02-15 01:32:28        3325        FAN0029        Fan 8A is either removed, incorrectly installed, or not present.
2022-02-15 01:32:29        3326        FAN0029        Fan 9A is either removed, incorrectly installed, or not present.

2022-02-1501:32:30        3327        FAN0028        Fan 7A is inserted.
2022-02-1501:32:31        3328        FAN0028        Fan 8A is inserted.
2022-02-1501:32:32        3329        FAN0028        Fan 9A is inserted.

此外,生命週期記錄可能包含風扇 RPM 事件 (FAN0000,FAN0005) 和風扇冗餘事件 (RDU0001,RDU0002)。
 
2022-02-1501:38:55        3413        RDU0001        The fans are redundant.
2022-02-1501:38:54        3412        FAN0005        Fan 9A RPM is within range.
2022-02-15 01:38:54        3411        FAN0000        Fan 9A RPM is less than the lower warning threshold.
2022-02-1501:38:53        3410        FAN0005        Fan 8A RPM is within range.
2022-02-15 01:38:52        3409        FAN0000        Fan 8A RPM is less than the lower warning threshold.
2022-02-1501:38:52        3408        FAN0005        Fan 7A RPM is within range.
2022-02-15 01:38:51        3407        FAN0000        Fan 7A RPM is less than the lower warning threshold.
2022-02-15 01:38:51        3406        RDU0002        Fan redundancy is lost.

Cause

iDRAC9 會每五秒查詢一次系統風扇的 RPM 讀數。當這些事件週期快速連續發生時,iDRAC 會將某些傳回的資料位元組誤解為錯誤,導致發出錯誤的「移除」錯誤訊息。在 iDRAC 的下列查詢中,風扇和 iDRAC 正確同步,導致記錄中出現「已插入」訊息。

Resolution

Dell iDRAC9 韌體版本 5.10.10.52 (2022 年 4 月) 解決了這些傳回的 RPM 回應處理錯誤。升級至此版本應可解決此問題。

Affected Products

iDRAC9, iDRAC9 - 4.xx Series, iDRAC9 - 5.xx Series, PowerEdge R750, PowerEdge R7525
Article Properties
Article Number: 000197000
Article Type: Solution
Last Modified: 05 Sept 2022
Version:  5
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