[rhelv6-list] Heavy laptop disk cycling?

[solarflow99]

On Mon, Jan 10, 2011 at 12:01 PM, MJang <mike at linuxexam.com> wrote:
> On Thu, 2011-01-06 at 08:58 +0100, Jan-Frode Myklebust wrote:
>> On Wed, Jan 05, 2011 at 08:51:17AM -0800, MJang wrote:
>> >
>> > Just noticed that since I installed RHEL 6 back in Nov, my laptop hard
>> > disk (from a new T410) has gone through about 200,000 cycles, as
>> > confirmed by the smartctl -a /dev/sda command. (If I remember right,
>> > hard drives expire at around 600,000 cycles.)
>>
>> Just for datapoint.. my T400, installed with RHEL6 october 31. (was
>> running fedora-13 before that, and RHEL5 before that), has only gone
>> trough 290 power cycles:
>>
>>         9 Power_On_Hours          0x0032   097   097   000    Old_age Always       -       12661
>>
>>        12 Power_Cycle_Count       0x0032   099   099   000    Old_age Always       -       290
>>
>> I have disabled the "spin down hard disk" option in the power
>> management preferences (it's an SSD, so there's nothing spinning
>> anyway).
>
> Appreciate the datapoint. FWIW, I've reported this as a bug at
> https://bugzilla.redhat.com/show_bug.cgi?id=667485
>
> I gather opinions vary on whether one of the following commands is the
> better way to prevent the premature aging problem:
>
> hdparm -B 254 /dev/sda
> hdparm -B 200 /dev/sda
>
> I've since had to replace the hard drive, as it was spouting out lots of
> read error messages -- the damage was focused on the top-level root
> directory partition where RHEL 6 was installed. (the other partitions on
> my drive were fine)

Does the new drive show high cycles also?