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diff --git a/health/guides/megacli/megacli_pd_predictive_failures.md b/health/guides/megacli/megacli_pd_predictive_failures.md new file mode 100644 index 000000000..1aa7b0d20 --- /dev/null +++ b/health/guides/megacli/megacli_pd_predictive_failures.md @@ -0,0 +1,29 @@ +### Understand the alert + +This alert indicates that one or more physical disks attached to the MegaCLI controller are experiencing predictive failures. A predictive failure is a warning that a hard disk may fail in the near future, even if it's still working normally. The failure prediction relies on the self-monitoring and analysis technology (S.M.A.R.T.) built into the disk drive. + +### Troubleshoot the alert + +**Make sure you have taken necessary backup steps before performing any action. Netdata is not liable for any loss or corruption of data, databases, or software.** + +1. Identify the problematic drives: + + Use the following command to gather information about your virtual drives in all adapters: + + ``` + megacli –LDInfo -Lall -aALL + ``` + +2. Determine the virtual drive and adapter reporting media errors. + +3. Consult the MegaRAID SAS Software User Guide [1]: + + 1. Refer to Section 2.1.16 to check for issues with your drives. + 2. Refer to Section 7.18 to perform any appropriate actions on drives. Focus on Sections 7.18.2, 7.18.6, 7.18.7, 7.18.8, 7.18.11, and 7.18.14. + +4. Consider replacing the problematic disk(s) to prevent imminent failures and potential data loss. + +### Useful resources + +1. [MegaRAID SAS Software User Guide (PDF download)](https://docs.broadcom.com/docs/12353236) +2. [MegaCLI commands cheatsheet](https://www.broadcom.com/support/knowledgebase/1211161496959/megacli-commands)
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