linux hdparm's -y 和 -Y 的区别

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于 2019-09-03 21:46:00 发布

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本文链接：https://blog.youkuaiyun.com/lbsjs/article/details/100531521

本文详细介绍了如何使用特定命令强制IDE硬盘立即进入低功耗待机模式或最低功耗睡眠模式，导致硬盘旋转停止或完全关闭。在硬盘再次被访问之前，可能需要硬重置或软重置，而Linux IDE驱动程序将自动处理必要的重置操作。通过使用-C标志可以检查当前的电源模式状态。

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-y

Force an IDE drive to immediately enter the low power consumption standby mode, usually causing it to spin down. The current power mode status can be checked using the -C flag.

-Y

Force an IDE drive to immediately enter the lowest power consumption sleep mode, causing it to shut down completely. A hard or soft reset is required before the drive can be accessed again (the Linux IDE driver will automatically handle issuing a reset if/when needed). The current power mode status can be checked using the -C flag.