# 故障诊断
[查询诊断记录 - ListDiagnosisTasks](https://support.huaweicloud.com/api-coc/ListDiagnosisTasks.html)
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[提交诊断任务 - CreateDiagnosisTask](https://support.huaweicloud.com/api-coc/CreateDiagnosisTask.html)
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[查询指定诊断记录下的指定诊断步骤的详情 - ShowDiagnosisNode](https://support.huaweicloud.com/api-coc/ShowDiagnosisNode.html)
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[查询单个诊断任务详情 - ShowDiagnosisTask](https://support.huaweicloud.com/api-coc/ShowDiagnosisTask.html)
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[重试诊断任务 - RetryDiagnosisTask](https://support.huaweicloud.com/api-coc/RetryDiagnosisTask.html)
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[取消诊断任务 - CancelDiagnosisTask](https://support.huaweicloud.com/api-coc/CancelDiagnosisTask.html)
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[查询批量诊断任务的结果概要 - ShowDiagnosisSummary](https://support.huaweicloud.com/api-coc/ShowDiagnosisSummary.html)
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