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 Post subject: Ideas to quiet 2.5" disks in NAS
PostPosted: Wed Apr 15, 2015 4:25 am 
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Joined: Mon Mar 16, 2015 3:04 pm
Posts: 4
Hi,

Sorry for the long story. Perhaps grab a beer.

I've come a long journey from having almost silent media / storage pc - 4x 2TB EARX WD greens in a Fractal Design Mini Define (comes with sound deadening foam and basic silicon isolation for the drives), Enermax Pro87+, passive gfx card, passive cpu cooler, and a single undervolted intake fan.

Disk failed, couldn't get a matching replacement - so thought it was time to have a NAS rather than running softraid myself etc etc

Bought a Netgear RN314 NAS - Out of box, transfers drive vibration really really well. :( No isolation options. Single cooling fan is OKish at low RPM, as long as your drives don't run hot. Bleeds terrible amounts of spindle noise out the front, no muffling on the air intake path - but let me get to that point and what I am trying to do now.

So turns out the EARX Greens are bloody brilliant cool running drives, with very little spindle noise and a solid seek noise that can be managed through decoupling.

I should have just "found" a couple more EARX drives, but I didn't so now I have a collection of disks (which I need to sell before my wife discovers - story for later :))

3TB 5K3000 Hitachi disks, OMG it sounds like someone is using sandpaper on the platters. Also they run hot, really really hot. So of course the NAS runs up the FAN to compensate and so much noise my ears are bleeding. So I think, 2.5" disks ... I don't really need more space than 2TB a slot.

Seagate Momentus 2TB ... wow, they are several times noisier than the EARX drives! Sure they run really really cool, like 31 deg C with the fan in the NAS still slow moving, but the spindle noise is driving me nuts.

So my crazy idea is to encase the disks with something that will transfer some of the heat (perhaps this isn't even an issue), and muffle the spindle noise. Because they are 2.5" disks in 3.5" caddies, I have space to spare, although the attachment point is hard to the back and side, so the SATA / Power lines up with where the 3.5" disk would have them.

I found this http://www.quietpc.com/smartdrive-proof25 but they are crazy priced, but I guess this is kind of what I want to do

Any ideas to silencw my 2.5" disks or NAS somehow, cause I really like the Netgear ReadyNAS OS and size of the device :)

Cheers


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 Post subject: Re: Ideas to quiet 2.5" disks in NAS
PostPosted: Wed Apr 15, 2015 9:13 am 
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Joined: Wed Jul 12, 2006 10:29 am
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Location: de_DE
Loose the hard drive trays, connect the drives with SATA power+data extension cables and suspend the drives with elastic cord.

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 Post subject: Re: Ideas to quiet 2.5" disks in NAS
PostPosted: Wed Apr 15, 2015 11:14 am 
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Location: Monterey Bay, CA
boost wrote:
Loose the hard drive trays, connect the drives with SATA power+data extension cables and suspend the drives with elastic cord.

If it's a vibration problem, then suspension will work. If it's a read/write head noise issue, then an enclosure is the only way to reduce the noise.

There's also the Scythe Himoru Mini. Also pricey. :) Here's an SPCR member's feedback.

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 Post subject: Re: Ideas to quiet 2.5" disks in NAS
PostPosted: Wed Apr 15, 2015 4:21 pm 
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Location: Northern California.
A NAS is built to be remotely located, away from the user. so sound is generally not a concern in their design.
drive suspension will help, but its best to just put in in the garage or another room.

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 Post subject: Re: Ideas to quiet 2.5" disks in NAS
PostPosted: Fri Apr 17, 2015 2:52 am 
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Joined: Mon Mar 16, 2015 3:04 pm
Posts: 4
Thanks for the comments. I found these brackets

http://www.ebay.com/itm/2-5-SATA-HDD-SS ... 1362327725

Advantage ... use existing NAS sleds. Moves the 2.5" drive into the middle of the drive sled in all three dimensions, allowing the use of rubber bands, noise dampening materials.

Since the drives are only 1.5W operating, hopefully I wont have to worry about heat.

I'm gonna make this baby so quiet, you won't hear it at 1m.

Shoulda seen what I had to do to my amp! I think it has finally recovered.

Cheers


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