Ubuntu
acpi-support package

  1. Bug #59695
  2. Comment #825

Comment 825 for bug 59695

Revision history for this message
In , Dimitrios (dimitrios-redhat-bugs) wrote :

Dear all, may I request that you reopen this bug?

On Fedora 17 I get the following on a 2 year used hdd:

# smartctl -A /dev/sda | grep ^193
193 Load_Cycle_Count 0x0012 064 064 000 Old_age Always - 366975

My hard disk is a Hitachi HTS545025B9A300, and as seen in the datasheet at [1] the expected lifetime is 600K load cycles. So I argue that this *is* a bug for Fedora, and the proper fix would be to "smartctl -B 254" when on AC and "smartctl -B 128" when on battery. I think that's the fix implemented in Debian/Ubuntu, see [2].

[1] http://www.hgst.com/tech/techlib.nsf/products/Travelstar_5K500.B
[2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=448673

If you are interested I can come up with a patch, it seems pretty simple, as I think the proper place for running hdparm would be "/etc/pm/{power,sleep}.d/, at least to take care of the AC/battery switching. Can someone inform me if these directories are appropriately scanned and executed when systemd boots the system, or different hooks (where?) would be needed for that case?