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PostPosted: Fri Jul 25, 2008 3:29 pm 
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Location: Kobe, Japan
I've just bought one LS-WSGL/R1. From what should I start?
I do not have any Windows-PC available, only Mac and Linux.
Thanks!

Update: I've root'ed it with help of acp_commander, and added some info about SMART to the wiki:
http://buffalo.nas-central.org/index.ph ... LS-WSGL/R1


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PostPosted: Sat Jul 26, 2008 7:53 am 
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Location: Turku, Finland
After seeing your wiki additions about the temperature of the drive, I had to check my own mini. Indeed, it runs warm as hell! :shock:
Code:
194 Temperature_Celsius     0x0002   100   100   000    Old_age   Always       -       55 (Lifetime Min/Max 25/62)

That really can't be good for the hds. :down:


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PostPosted: Sun Jul 27, 2008 3:19 am 
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Yup. I personally will keep it switched off until I find a solution.

Can one boot from USB-flash? I have not found any info at the wiki.


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PostPosted: Mon Jul 28, 2008 7:35 am 
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:o that thoguht didn't even occur to me... that would be a really great way of getting custom kernels built without having to risk bricking the device! I would love it if this actually worked.

As a general question: do all bootable usb disks need to be in the form of a DOS boot disk? Or is there a way to actually get it to boot for example grub? All tutorials/how-tos that I've seen on this only deals with a stripped down DOS version for the bootstrap.

-NRG


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PostPosted: Mon Jul 28, 2008 2:29 pm 
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NRGizeR wrote:
After seeing your wiki additions about the temperature of the drive, I had to check my own mini. Indeed, it runs warm as hell! :shock:
Code:
194 Temperature_Celsius     0x0002   100   100   000    Old_age   Always       -       55 (Lifetime Min/Max 25/62)

That really can't be good for the hds. :down:


It would be nice to see this information in correlation to ambient temperature. Could you post both at the time of reading property #194?

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LS-WSGL/R1 Linkstation Mini (stock, not for long...)


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PostPosted: Mon Jul 28, 2008 2:54 pm 
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johnbock wrote:
It would be nice to see this information in correlation to ambient temperature. Could you post both at the time of reading property #194?

The temperature in my room is about 26 C.
My Linkstation is idle now:
Code:
194 Temperature_Celsius     0x0002   117   117   000    Old_age   Always       -       47 (Lifetime Min/Max 25/62)


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PostPosted: Mon Jul 28, 2008 7:42 pm 
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LaitrKeiows wrote:
The temperature in my room is about 26 C [and w/ idle LS] 47 C.


How is the lil one positioned: vertically, horizontally and are there air slots on bottom/top (left/right) and backside?

I wonder how the temp reacts when it's placed [edit] horizontally vertically [/edit] on a tiny pedestal (two pencils), so that air can flow unimpeded upwards through the device?

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LS-WSGL/R1 Linkstation Mini (stock, not for long...)


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PostPosted: Mon Aug 04, 2008 6:12 am 
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There is too much plastic around HDDs, and not much space for ventilation. I'd say that position affects temperature very little, or even not at all.


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PostPosted: Mon Aug 04, 2008 5:06 pm 
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LaitrKeiows wrote:
There is too much plastic around HDDs, and not much space for ventilation. I'd say that position affects temperature very little, or even not at all.


You're correct, there is too much stuff around the HDD's. I had taken the mini apart and removed the metal plates on the bottom side of HDD's; subjectively they got even hotter: I guess the metal plates serve as some kind of heat exchange. There is an adhesive tape on these plates, perhaps a bit of "heat paste" instead of the adhesive would help to reduce the motor to plate thermal resistance.

I don't think the processor produces too much heat, otherwise we could put a rippled plate larger than the processor on it to decrease thermal resistance.

It may be interesting to attach a tiny fan on the top of the assembled mini pulling the warm air across the HDD's and out of it. Perhaps that will help. And I believe it would be nice to see if and how much the temp drops.

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LS-WSGL/R1 Linkstation Mini (stock, not for long...)


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PostPosted: Mon Sep 08, 2008 2:41 pm 
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Location: United Kingdom (Great Britain)
On Friday I copied data to my mirrored mini for 17 hours non stop.
The ambient temperature was 25C, the disks were registering 53C.
On Monday, after just sitting there idle all weekend the disks registered 46C
with an ambient temp of 22C
I copied data for another 4 hours, disks climbed back up to 52C

According to the manufacturer's specs the max operating temperature for
the hitachi's is 60C. I found an article showing the effects of temperature
on disks in Google's own servers
(http://storagemojo.com/2007/02/19/googl ... xperience/)
which indicates that high temperatures seems to make little difference for the
first two years but doubles the failure rate thereafter. However they were looking
at 40C+, whereas this is 50C+ which is a big jump. I suspect that the failure rate
at 53C is going to be much higher than double.

I therefore decided to see the effect of some cooling. I borrowed a PS3 add-on fan which
is basically four small fans powered from a usb port so that it could power directly from
the mini. Its obviously noisier than no fan but not too intrusive.

After 30 mins and during constant copying of data the temperature dropped to 29C .....
So I think I am going to add a little cooling to my mini from now on.

The fan I borrowed was
http://www.amazon.co.uk/COOLING-FAN-PLU ... B0012CZ488
and it looks as though it can be modified for permament use without too much
problem. Its main faults are a) its too long and b) the usb port is rigid, being designed for the PS3
However I think if I cut it in half (two fans is enough plus quieter) and cut off the end with the
usb port/switch, discard the middle bit with the spare two fans, then the extra cable exposed
by this will allow me to take the usb part round the back and plug it in. It even has a passthu
usb socket so the usb can still be used for extra storage.


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PostPosted: Tue Sep 09, 2008 5:07 pm 
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Hitachi? Not sure why I said that,
they are actually Western Digital WD2500BEVS but never mind.

I persuaded the previous owner of the PIII that he no longer needed it
(amazing what nailing a horses head to someone's door can achieve)
and duly took a hacksaw to it.

Some more info :
1 fan (they are 4cm square) cools the disks to around 36C
2 fans cool to around 33C


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