Regarding Load_Cycle_Count
Posted: 03 May 2010, 02:04
Hi guys,
I have a quick question regarding HDD's Load_Cycle_Count. There used to be a LCC related bug in Ubuntu (actually in ACPI, all distros have the same problem). But it was fixed in Ubuntu 8.10.
https://bugs.launchpad.net/ubuntu/+sour ... +bug/59695
I run Ubuntu (D620) and Arch Linux (D630), when using AC power, Load_Cycle_Count is not increasing at all. This is the expected behavior.
However, on my NC148 I found the LCC is slowly increasing (when display is put to sleep, count +1, etc...) on AC Power even if I disable Spin Down HD for both AC/Battery in Power Management. I am wondering if I am missing some packages (laptop-mode-tools???), how do you guys prevent the LCC from increasing?
Since 8.10, acpi package has changed, config files under /etc/acpi changed, no easy way to understand what is happening.
Used to be:
Right now, it seems the only workaround is to manually control it by using hdparm:
Terry
I have a quick question regarding HDD's Load_Cycle_Count. There used to be a LCC related bug in Ubuntu (actually in ACPI, all distros have the same problem). But it was fixed in Ubuntu 8.10.
https://bugs.launchpad.net/ubuntu/+sour ... +bug/59695
I run Ubuntu (D620) and Arch Linux (D630), when using AC power, Load_Cycle_Count is not increasing at all. This is the expected behavior.
However, on my NC148 I found the LCC is slowly increasing (when display is put to sleep, count +1, etc...) on AC Power even if I disable Spin Down HD for both AC/Battery in Power Management. I am wondering if I am missing some packages (laptop-mode-tools???), how do you guys prevent the LCC from increasing?
Since 8.10, acpi package has changed, config files under /etc/acpi changed, no easy way to understand what is happening.
Used to be:
Code: Select all
/etc/acpi/ac.d/
/etc/acpi/battery.d/
/etc/acpi/resume.d/
/etc/acpi/start.d/
Code: Select all
hdparm -B 254 /dev/sda