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raid.media_scrub ． enable 选项有什么作用？

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data-ontap-7
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适用场景

Data ONTAP 7 及更早版本

问题解答

此选项可在 NetApp Filer 上启用连续介质清理。默认值为“开”、设置该值的语法为“options raid.media_scrub.enable on”。

media_scrub 对性能的影响可以忽略不计。连续介质清理可显著降低在重建过程中发现的介质错误导致数据丢失的可能性。
因此、 NetApp 建议保持启用此选项。

注：
对于 R100 、 R150 和 R200 系统、如果遇到重复的驱动器超时和恢复情况，建议关闭清理。

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