DSM-G600, DNS-3xx and NSA-220 Hack Forum

Xepol · 2007-08-03 16:31:44

Using the stock options etc, my DNS-323 runs at 105-110 F idle with the front cover off. When the drives gets used, temperatures start to spike towards 120. Once the drive passed somwhere around 120F, it locks up and dies horribly. With the front cover on, it's just a sauna for drives with no interest in talking to the network.

I assume that since the heat shutdown is seeded with 140F as a default that it should last at least to 140, so I'm thinking that dying around 120 is probably a bad sign.

I do have a fan from an old IBM word processor (that had 8" floppies, the fan runs straight of 110 volts, and it can move some serious air, even with a minimum of noise) that can keep it 99% stable around 97F even in use, but it still locks up about once a week for no really good reason.

My question to everyone is: Is this a typical problem or does your machine run hot and stable with no random lockups? I am trying to decide if it worth RMAing the box - Do I stand a reasonable chance of getting a box that is more stable, or am I likely to get yet another drive warmer that one works while sitting in a wind tunnel? Basically, is my machine the norm or the exception?

Thanks all.

rfg · 2007-08-03 16:46:45

Just setting up my DNS 323 for the first time, so have been looking at the status page. Mine is not nearly this hot: was around 98F idle. Just copied over my first 5GB or so and it got up to 104. Seems to stay at that temp while not writing but with drives spinning. I have 2x Samsung 500GB drives installed.

Great forum by the way!

zeroday · 2007-08-03 16:56:12

My NAS is in a bad ventilated part of my building (where all my cables come together, gas/water/electricity
and the temp is steady on 109F or 43C (even I have seen it running at 45C .. )

Tjsak!
Zeroday

Emacs · 2007-08-03 19:41:18

Mine (including the fan mod from the wiki) is running in a normal working room at 45°C (111 °F ?) with two 500GB Samsungs inside.
But I believe 45°C is well within the specifications of today's harddisks. I wouldn't consider 45°C to be a problem at all.

Cheers,

Emacs

Last edited by Emacs (2007-08-03 19:41:42)

dkl · 2007-08-04 00:30:23

Mine runs betweens 40/41 C (idle) up to 43/45 with disk activity. I never saw more than 45. I use the fan control utility you can find on the wiki. It is generally admitted that the maximum limit for *disk* temperature is around 55 C (after that, you may encounter head crashes). But I'm not sure that the temperature monitored by the DNS is actually the *disk* temperature, or the *box* temperature.

saltisol · 2007-08-04 11:28:33

My temperature usually lies around this from the admin page:

System Temperature: 114 F / 46 C

On this machine Im running mldonkey and pure-ftpd so its probably active most of the time

leper · 2007-08-04 11:41:06

Running a single 500gb seagate disk, my temperatures (with the wiki example fan_ctrl.sh script and the update_interval=60, T1=105, T2=140, RPM1=1800, RPM2=4000 settings) i have yet to exceed 119F / 47C. In idle, it drops as low as 107F / 42C. I could probably make it even cooler, by changing the RPM1 and T1 value , but I prefer to have it less noisy, and so far I've yet to encounter any problem with lockups or whatever. The dns323 is running ftp and lighttpd, no other services.

Keep in mind, though, I am not stressing the dns323 and the load is mostly light to medium. I am not sure how the temps would change if I constantly accessed and wrote to the disk.

dickeywang · 2007-08-05 02:24:58

running with a single 400GB Hitachi, idle 113F and 118F when loaded.
It is the temperature reported by the DNS, I couldn't find a way to read the value reported by the sensor inside the HDD.

finphil · 2007-08-05 22:04:52

Standard DNS-323, 1 x 500gb Samsung, 113 F/ 45 C reported by DNS, serving media files all day, ambient temp around 25 to 27 C today. No problems at all.

Xepol · 2007-08-06 06:24:41

Thanks everyone. Sounds like it's time to RMA my box, clearly, it is having "issues" You all seem quite stable at temperatures that my box dares not to approach, regardless of what hard drives I have in it (I've moved from maxtor 250s to seagate 500s in single and dual problems and it is definitely heat related).

The temp the box reads is the box itself, not the harddrives, so this is definitely related to heat problems in the 323 circuitry itself, not the drives.

Maybe nick naming it a "data toaster" was too prophetic.

Diddycoon · 2007-08-09 15:29:39

For the record

I'm running two Seagate 750Gb HDDs and the reported temp is 113 F/ 45 C.

debianbox · 2007-08-10 20:04:58

Hello, I am new on this forum
DNS-323 + Samsung 300 Go + Seagate 500 Go
FW 1.03
300 Go RAID 1 + 200 Go JBOD.

Thanks to this forum, THAT WORKS FINE NOW !!!!!!!!!

The outside/inside temperature can influence enormously the results.

Wake up of disks (5 minutes in the setup):
107 °F / 42 °C

Normal Use:
111 °F / 44 °C
113 °F / 45 °C

Maximum use, 2 simultaneous backups under XP (50Go in RAID1 and 100 Go in JBOD):
117 °F / 47 °C

No problemo ...

Last edited by debianbox (2007-08-10 20:25:44)

dtshin · 2007-08-20 22:23:18

You may want to keep that cover on the enclosure. Usually fans in enclosed systems (like desktop computers and rack/blade arrays) are designed to maximize on the airflow to take the heat out of the system. Once you remove the cover, the fan is unable to ventilate the delicate electronics and equipment. If the equipment is well-designed, the enclosed environment should allow the fan to draw hot air out and cooler air in, in a cycle.

Of course keeping your NAS in an air-con room would probably do the trick... I'm over tropical climes in SE Asia, and I can't afford to keep my air-con going while I'm at work, but I do keep a fan in the room going, so that heat doesn't build-up in the room.

Over a decade ago, back when I was in help-desk, my boss in MS told me never to leave the cases off running (desktop) computers and I've also learned from prior experience/stupidity that disrupting airflow (in this case leaving a door open in a server room of a major bank) can bring more than a million dollars of rack equipment to a halt.

w00 · 2007-09-08 13:12:51

What about running a dns 323 with only one hdd (samsung 500gb) WITHOUT a fan at all? would that be dangerous? there are many nas out there which dont have a fan at all (e.g. qnap or nslu2+extrenal usb-hdd). or do you think the dns 323 - design is totally unsuitable to run fan-less?

cheers

gospeedgo17 · 2008-12-27 06:40:07

My room is 75F/24C the DNS-323 is 49C with cover on, and with no mods except for fun_plug and Twonky for PS3. Hardware is OEM.
After discovering the vibration noise coming from Seagate drives and reading the forum, I took the front cover off to quiet it, to see what would happen.
With the cover off for 20 minutes, the DNS-323 is 44C, but now the noise from the air flow is worse!

I was thinking of making a metal cooling case for the 323, fan(s) powered by the USB port. If this has been done, or if there is one to buy, please reply with a link. Thanks, Speed.

Last edited by gospeedgo17 (2008-12-27 06:42:36)

DSM-G600, DNS-3xx and NSA-220 Hack Forum

Announcement

#1 2007-08-03 16:31:44

Heat problems.

#2 2007-08-03 16:46:45

Re: Heat problems.

#3 2007-08-03 16:56:12

Re: Heat problems.

#4 2007-08-03 19:41:18

Re: Heat problems.

#5 2007-08-04 00:30:23

Re: Heat problems.

#6 2007-08-04 11:28:33

Re: Heat problems.

#7 2007-08-04 11:41:06

Re: Heat problems.

#8 2007-08-05 02:24:58

Re: Heat problems.

#9 2007-08-05 22:04:52

Re: Heat problems.

#10 2007-08-06 06:24:41

Re: Heat problems.

#11 2007-08-09 15:29:39

Re: Heat problems.

#12 2007-08-10 20:04:58

Re: Heat problems.

#13 2007-08-20 22:23:18

Re: Heat problems.

#14 2007-09-08 13:12:51

Re: Heat problems.

#15 2008-12-27 06:40:07

Re: Heat problems.

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