HD temp question

[Per]

Hi!

I have measured the hd temperature using hddtemp utility and it seems to be rather high (almost 50C).

Is this a concern? It is lower that segates max temp (60C) but it may reduce the hd life span.

/Per

[lelle]

Hi!

I have measured the hd temperature using hddtemp utility and it seems to be rather high (almost 50C).

Is this a concern? It is lower that segates max temp (60C) but it may reduce the hd life span.

/Per

Hi Per,

Good cooling is always essential, but I wouldn't worry about the temp -- my hd temp varies between 46-49 C. This is well below the specifications for the Seagate Barracuda 7200.10 drive. You can find more info here: http://www.seagate.com/docs/pdf/datashe ... 200_10.pdf

[Clive]

My HD temp is normally between 47-49C which does feel warm -

http://www.cashaw.co.uk/phpsysinfo/index.php

I have my Bubba stood vertically in a cool ventilated room (actually my closet) so perhaps all that is lacking is air-movement. When I get round to it I was going to investigate mounting it on a large heat-sink to see if that made any effect. Although as Lelle says, it is well within the operational specifications of the hard disk. I do wonder what longterm effect this will have on the Bubba mainboard though.....

[johannes]

I don't think you need to worry about temperatures around 50 degrees. However, higher temperatures always affects durability. As a rule of thumb when it comes to electronics, lowering the temperature with 10 degrees C doubles lifetime.

Some facts for the curious:

Regarding the Bubba main board, the lowest specified parts is the Lithium battery cell (keeping the time at power-down) is specified for a maximum operating temperature at 70 degrees C. High temperatures doesn't affect the battery capacity or life-time.

The only other thing to consider is the large electrolytic capacitors for the power supply (located near the power supply inlet, on the bottom side of the circuit board), wich are specified for a max temperature of 105 degrees C. The expected life time at 55 degrees is something like ten years. Since they contain fluid that dries out over time, these are always the most sensitive parts of the board.

Regarding the disk it's harder to calculate life expectancies, but they do give a five year warranty, and specify maximum temperature to 65 degrees C, wich would indicate that running at 50 degress is fairly safe.
EDIT: Seagate specifies a maximum operating temp to 60, not 65. Sorry. Still, no worries.

[Clive]

Thanks for the information Johanne and putting my mind at rest !

[Per]

Thanks for the information.

Let's hope that this temperature won't reduce the lifespan of the disk.

Anyway, to ease my mind, I install smartmontools to keep an eye on the disk for me.

/Per

[dsp76]

Hi Per,
how did you install it? I downloaded the .deb package, but run in several dependencies. Did you manually correct them? Or did you add another source to the sources list?

dsp

[Per]

Hi!

Use apt-get and dependencies will be resolved:

apt-get install smartmontools

/Per

[dsp76]

Hi Per

Code: Select all

The following packages have unmet dependencies:
  smartmontools: Depends: libc6 (>= 2.3.5-1) but 2.3.2.ds1-22sarge4 is to be installed
                 Depends: libgcc1 (>= 1:4.1.1-12) but 1:3.4.3-13sarge1 is to be installed
                 Depends: libstdc++6 (>= 4.1.1-12) but it is not installable
                 Depends: lsb-base (>= 3.0-10) but it is not installable
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

... so you might have added other sources?
dsp

[Per]

Hi!

Check that you have the correct source list:

deb http://ftp.se.debian.org/debian/ sarge main
deb http://security.debian.org/ sarge/updates main
deb http://ftp.se.debian.org/debian/ sarge non-free


Bubba is built on sarge so you can't use debian default.

[dsp76]

Hi,
okay, that worked - thanks a lot!

Its a Hitachi HDS725050KLAT80, I needed to switch SMART on with

Code: Select all

sudo smartctl -s on /dev/hda

Now I need to find out, how to set up the daemon, so it can warn me in case anything goes wrong...

dsp

[Per]

Hi!

You probably already have smartd running after the install. Check:

ps -e | grep smartd

If it isen't started use

/etc/init.d/smartmontools start

Check that /etc/default/smartmontools specify that smartd should start. If it is smartd will start after reboot.

Configuration of smartd you find in /etc/smartd.conf

Also goto http://smartmontools.sourceforge.net for more information.

/Per

[dsp76]

Perfect, thanks...

I set the smartd.conf settings to:

Code: Select all

/dev/hda -H -m myemail@adress.de

Hopefully it will never send an email

dsp