*** This bug is a duplicate of bug 59695 ***
https://bugs.launchpad.net/bugs/59695
The need for this bug has been removed, since bug #59695 is no longer
being replaced with a static page, and the older #59695 is preferable.
** Changed in: acpi-support (Ubuntu)
Assignee: (unassigned) => Brian Visel (eode)
Status: New => Invalid
** Changed in: acpi-support (Ubuntu)
Status: Invalid => Confirmed
** This bug has been marked a duplicate of bug 59695
High frequency of load/unload cycles on some hard disks may shorten lifetime
** Description changed:
+ ================================
+ This was created to be the head of the Load_Cycle_Count bugs when #59695 was
replaced with a static page. The static page has been removed, and this
bugreport is no longer necessary.
+ ================================
+
Binary package hint: acpi-support
This is an aggregate bug for the "Load_Cycle_Count" bugs. It has been
created to replace #59695, which has been replaced by a static web page
due to traffic from Slashdot and digg, and which was incorrectly merged
into #17216, and then de-merged, back into the (now static) #59695.
-
- This is now the head for the different Load_Cycle_Count bugs, which have
- gone through many confusing changes.
Symptoms of this bug are:
* frequent HD clicks (more than one per 3 minutes while idle, louder than the
typical access sounds)
* Rapidly Increasing Load_Cycle_Count as displayed in the final number in
"sudo smartctl -a /dev/hda | grep Load_Cycle_Count" (where /dev/hda is replaced
with your own hard disk device)
* Early hard disk failure -- some disks are cut down to less than a year of
actual uptime.
The problem seems to be caused by:
* Hardware defaults to aggressive power management
* Disk is touched often.
This problem has been confirmed in Ubuntu as well as in other
distributions.
A disk that has this issue:
WD1200VE -- http://www.wdc.com/en/library/portable/2879-001121.pdf -- This
aggressive parking is a feature of this disk, but that feature relies on
behaviour that allows for significant amounts of (truly) idle time without the
disk being touched. Notice the "Load/unload cycles" of 600,000.
--
[aggregate][g/f/e] Default HD power management settings will kill drive
https://bugs.launchpad.net/bugs/161239
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