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PSQN | R750 | R7525 | FAN0029:后部硬盘固定框架风扇错误

Summary: 配置有后部 4x2.5" 硬盘背板的 Dell PowerEdge R750 和 R7525 服务器可能会在系统事件和生命周期日志中报告风扇错误。

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

配置有后部 4x2.5" 硬盘背板的 Dell PowerEdge R750 和 R7525 服务器配备三个额外的后部系统风扇(7、8、9)。在正常的系统操作下,这些风扇可能会反复报告它们被卸下并重新插入服务器。这些错误事件记录在系统事件日志 (SEL) 和 iDRAC9 生命周期日志中。

现场终端用户可以通过检查服务器背面左上三分之一处的 2.5" 驱动器插槽来直观地确定后部 4x2.5" 硬盘背板是否存在。查看下图以确定 4x2.5" 背板固定框架。 
R750-Rear-Image.png
远程终端用户可以通过 iDRAC9 Web 用户界面确定后部 4x2.5" 硬盘背板是否存在。转至 Storage > Overview > Enclosures。展开可用的机柜详细信息,检查是否存在 Enclosure Location = Rear。 
 
Storage-RearBP.png

出现此问题的系统可能会循环显示一些事件,指示后部风扇 7-9 缺失,并且在大约五秒钟后指示风扇已插入。这些 FAN0029 和 FAN0028 事件记录在 SEL 和生命周期日志中,如以下示例所示。

系统事件日志示例:
 
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.
 
生命周期日志示例:
 
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,生命周期日志可能包含风扇 RPM 事件(FAN0000、FAN0005)和风扇冗余事件(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 每五秒查询一次系统风扇的 RPM 读数。当这些事件循环快速连续发生时,iDRAC 会将某些返回的数据字节误解为错误,从而导致虚假的“removed”(已卸下)错误消息。在以下出自 iDRAC 的查询中,风扇和 iDRAC 正确同步,导致日志中出现“inserted”(已插入)消息。

Resolution

Dell iDRAC9 固件版本 5.10.10.52(2022 年 4 月)解决了对这些返回的 RPM 响应的错误处理。升级到此版本应该会解决问题。

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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