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--- doc:appunti:hardware:raspberrypi_nas_smart_hard_disk [2022/01/07 15:04] – [Letting the hard drive to remain in standby mode] niccolo
+++ doc:appunti:hardware:raspberrypi_nas_smart_hard_disk [2025/10/08 06:59] (current) – [hdparm] niccolo
@@ Line 93: / Line 93: @@
 ===== hdparm =====
-To set the **Advanced Power Management** level use the **%%-B%%** option, the maximum performance level which **permits spin-down** of the drive is 127:
+To set the **Advanced Power Management** level use the **%%-B%%** option. A low value means aggressive power management, an high value means better performance. The maximum performance level which **permits spin-down** of the drive is 127:
 <code>
@@ Line 113: / Line 113: @@
 </code>
-Debian provides the file **/etc/hdparm.conf** which is handled by the **udev** on system start to set the required parameters. You can set something like this:
+Debian provides the file **/etc/hdparm.conf** which is handled by the **udev** on **system start** to set the required parameters. You can set something like this:
 <file>