Ubuntu
acpi-support package

  1. Bug #59695
  2. Comment #115

Comment 115 for bug 59695

Revision history for this message
Pedro Martinez-Julia (pedromj) wrote : Re: [Bug 59695] Re: default value in power.sh potentially kills laptop disks

Hi,

In your case (24x7), you should use a value for "-B" that can increase
the life of your hard drive having a reasonable temperature. My hard
drives tells (through smartctl) 41ºC and 13/51 for actual and min/max
temperatures. I'm using "hdparm -B254" since yesterday because it
reached 400k loads.

I don't know any case of certain hard drive broker due to load/unload
cycle but reading specifications I found that the drives can support
about 300k loads and can effort a million loads without crashing but
with no warranties.

I didn't find any execution of hdparm in the start-up scripts, the
problem should be in BIOS or kernel. The hard drive can have default
configuration to get a balance between its capabilities (temperature,
loads, spins, etc), this may be configured by BIOS in the POST or by the
drive firmware in its reset.

Regards,

    Pedro

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