doc:appunti:hardware:raspberrypi_nas_smart_hard_disk
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doc:appunti:hardware:raspberrypi_nas_smart_hard_disk [2021/04/16 17:11] – [smartctl] niccolo | doc:appunti:hardware:raspberrypi_nas_smart_hard_disk [2022/01/07 15:04] (current) – [Letting the hard drive to remain in standby mode] niccolo | ||
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- | Regardless of the APM level, we can set the hard disk **Standby timer** (spindown) after 30 minutes of inactivity. See **man hdparm** for explanation of the number following the **%%-S%%** option (it seems that there is not way to know the timeout once you have set it): | + | Regardless of the APM level, we can set the hard disk **Standby timer** (spindown) after 30 minutes of inactivity. See **man hdparm** for explanation of the number following the **%%-S%%** option (the granularity of the timer up to 20 minutes is 5 seconds, above that threshold |
< | < | ||
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# It is advisable to disable write cache in this case. | # It is advisable to disable write cache in this case. | ||
# See man hdparm(8), -S and -W options. | # See man hdparm(8), -S and -W options. | ||
+ | # The granularity of the spindown_time up to 20 minutes is 5 | ||
+ | # seconds, above that threshold it is 30 minutes. | ||
/dev/sda { | /dev/sda { | ||
write_cache = off | write_cache = off | ||
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* **updatedb** - Execute by the **/ | * **updatedb** - Execute by the **/ | ||
- | * **smartctl** - Reading SMART attributes (e.g. disk temperature, | + | * **smartctl** - Reading SMART attributes (e.g. disk temperature, |
===== Web References ===== | ===== Web References ===== |
doc/appunti/hardware/raspberrypi_nas_smart_hard_disk.txt · Last modified: 2022/01/07 15:04 by niccolo