Description |
This article describes that FortiAnalyzer comes with physical disk drives that are configured in RAID. The RAID controller runs a scheduled consistency check on all the RAID arrays to ensure that all data is consistent. This check generally involved scanning for any block errors, or parity errors, and when such an error is caught, the controller then rewrites this data as per the RAID configuration. Depending on the available resources and configuration, the consistency check can consume disk resources for a long time. |
Scope | FortiAnalyzer. |
Solution |
To check the current configuration of the RAID Consistency Check, execute the command 'diagnose system raid cc'. Here is a sample output of the 'diagnose system raid cc' command:
FAZ-1$ diagnose system raid cc
Below is what each of the fields in the output means:
The last line in the output shows the current progress of the operation. In this case, 12% is complete in 359 minutes.
Depending on how busy the FortiAnalyzer is, the execution delay and rate can be configured to optimize resource utilization. Below is the command reference for this configuration :
diagnose system raid cc <rate> <delay>
where the rate is the percentage between 1-100 and delay is the hours ranging from 1-8760 hours. |
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