![HDD 无法识别 hdparm -S 标志](https://linux22.com/image/211293/HDD%20%E6%97%A0%E6%B3%95%E8%AF%86%E5%88%AB%20hdparm%20-S%20%E6%A0%87%E5%BF%97.png)
我的 WD6400AAKS 通过 USB 连接到 Raspberry。它包含在带有访问 LED 的外部 USB 盒中。它在 hdparm -y 上运行良好并停止运行。如果您在该驱动器上执行 ls 操作,它就会旋转。到目前为止,一切都很好。不幸的是它不能识别-S。尝试了 -S 1、-S 12。hdparm 正确返回,没有错误,但驱动器不会旋转,尽管 LED 指示没有访问。任何想法?
答案1
尝试将Advanced Power Management Feature
设为127
。
hdparm
联机帮助页:
-B Get/set Advanced Power Management feature, if the drive supports it. A low value
means aggressive power management and a high value means better performance.
Possible settings range from values 1 through 127 (which permit spin-down), and
values 128 through 254 (which do not permit spin-down). The highest degree of
power management is attained with a setting of 1, and the highest I/O performance
with a setting of 254. A value of 255 tells hdparm to disable Advanced Power
Management altogether on the drive (not all drives support disabling it, but most
do).
通过将高级电源管理功能设置为低于 128 的值,您可以允许驱动器降速。用于-S parameter
设置所需空闲时间的超时,但例如,如果高级电源管理功能关闭,则固件可能不遵守该参数。