Basic principles and functions of disk media scans

Storage systems periodically read disks for a scan to detect potential faults.
The scanned objects include member disks of a RAID group, hot spare disks, and free disks, ensuring that all disks in use are in good conditions.
By default, the scan period is 30 days. In a scan period, all disks will be scanned. If a system has over 100 disks, you are advised to select a scan period of 60 days (modifiable) to reduce the impact on system performance.

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