El 02/09/2010 01:58 a.m., David C. Rankin escribió:
On 09/01/2010 10:22 PM, Isaac Dupree wrote:
On 09/01/10 00:25, Rafael Beraldo wrote:
The thing is, 128 keeps the hard disc spinning down a lot. In fact,
254 is
quite noiseless, but as from 253 the clicking sound returns. I read
this bug
page [3] but found nothing new. It is worth remembering that,
sometimes,
when I'm watching a movie or TV show with mplayer, it stops for less
than I
second, then I hear the disc spinning faster and the video continues.
Some hard drives, such as yours, unfortunately don't have an
intermediate
setting. The hdparm -B values aren't in practice standardized.
So, how did you guys set the power manager with hdparm in your
laptops? Does
anybody else have this problem? Since I move my netbook often,
should I set
it to 128 even if it spins down more than four times a minute?
Depends whether you want your netbook to break (A) when you drop it
or (B) after
e.g. three years (or however long, depending on the frequency, more
clicks =
less lifetime). Some disks have sudden acceleration sensors that will
also try
to park the disk head when the disk feels itself being thrown across
the room,
making break-when-you-drop-it somewhat less likely. Since you have
audible
clicks, this might also weigh in favor of avoiding the clicks, if the
noise
bothers you or others...
-Isaac
In my experience, hard disc clicks are never good. I've run drives
where the read/write head would click on occasion and continue to
work, but you always know in the back of your mind that there is a
issue with the drive controller sending the read/write head on
excursions across the disc to either figure out where it is or to try
and cage itself. Neither should occur normally (OK some drives do cage
the r/w head normally on spindown) I have run drives like that for 1
year+ before the clicking finally becomes the deathnail of the drive.
Backup early and often...
I have the same netbook and the same problem. I resolved by changing a
few lines in the file /etc/hdparm.conf.
Adding at the end the lines:
# apm setting when on battery
apm_battery = 254
# -S standby (spindown) timeout for the drive
spindown_time = 0
But, I don't now if this solution is the better.
PD: Sorry, my english is not very good :b.
