> For the complete documentation index, see [llms.txt](https://huataihuang.gitbook.io/cloud-atlas-draft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://huataihuang.gitbook.io/cloud-atlas-draft/server/ipmi/ipmi_operation_and_sel.md).

# ipmi操作和对应的sel日志记录

> 在服务器维护中，通过OOB带外操作重启服务器，会在服务器的`sel`服务器事件日志中记录对应日志，例如

```
 2cf | 10/02/2016 | 11:18:16 | Unknown #0xcb |  | Asserted
 2d0 | 10/02/2016 | 11:18:29 | Unknown #0xcb |  | Asserted
 2d1 | 10/02/2016 | 11:18:32 | System ACPI Power State #0xc1 | S4/S5: soft-off | Asserted
 2d2 | 10/02/2016 | 11:20:15 | System ACPI Power State #0xc1 | S0/G0: working | Asserted
 2d3 | 10/02/2016 | 11:20:15 | Unknown #0xcb |  | Asserted
 2d4 | 10/02/2016 | 11:20:43 | System Boot Initiated #0xe0 | Initiated by power up | Asserted
 2d5 | 10/02/2016 | 11:23:01 | Unknown #0xcb |  | Asserted
 2d6 | 10/02/2016 | 11:23:27 | System Boot Initiated #0xe0 | Initiated by power up | Asserted
```

为方便理解，汇总整理常见操作的对应`sel`日志

| ipmitool指令             | sel对应日志                                                                                                                |
| ---------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| `chassis power status` | 无记录                                                                                                                    |
| `chassis power off`    | `Unknown #0xcb` + `System ACPI Power State #0xc1 S4/S5: soft-off`                                                      |
| `chassis power on`     | `System ACPI Power State #0xc1 S0/G0: working` + `Unknown #0xcb` + `System Boot Initiated #0xe0 Initiated by power up` |
| `chassis power reset`  | `Unknown #0xcb` + `System Boot Initiated #0xe0 Initiated by power up`                                                  |

> OOB电源状态切换都会记录一条 `Unknown #0xcb`
>
> OOB关闭电源记录 `S4/S5: soft-off`
>
> OOB开启电源记录 `S0/G0: working`
>
> 电源开启关闭都记录ACPI状态变化 `System ACPI Power State #0xc1`


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://huataihuang.gitbook.io/cloud-atlas-draft/server/ipmi/ipmi_operation_and_sel.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.