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We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

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Fractal Define 7 XL or R5 case for lower HDD noise? (alien.top)

submitted 10 months ago by [email protected] to c/[email protected]

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I've watched several YT videos reviewing both cases but nothing that explicitly calls out the noise levels with several HDDs running.

I'm about to rebuild my unraid server and looking to buy the 7XL or R5, I already have 6 HDDs and will likely add some more in over time. At the moment, the server will need to be in my home office sitting 3 - 4ft away from me and I'm trying to understand how much noise isolation I can expect. Most of my drives are WD Blue 8TB but I have one Exos X16 14TB for parity. I've seen reviewes of the R5 that show some kind of dampening on the panels but I didn't see that with the 7 XL.

Anyone with some experience with these cases able to comment?

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[–] [email protected] 1 points 10 months ago (5 children)

As someone with both a Fractal Design Define 7XL with 9 drives in it and a mini version of the case with no drives, I can say the following.

You don't want any transparent panels, the solid ones dampen noise with the padding on them.
The noise dampening is perfect for low speed case fans or cooling fans.
The noise dampening will not stop the following

a) Fan stop and start sounds (in my case a pesky GPU that needed the fans on nonstop at slow speed because they rattled starting and stopping)

b) hard drive noises, it can reduce the whine, but the head parking sounds are inescapable in my experience thus far. However I am certain this will depend on the drives you have. Prior to having this case and internal drives, I had 9-10 external drives plugged in via USB, and those drives were inaudible for the most part without any noise dampening besides being under a table that had a cloth over top of it.

So if you need silent, you probably want 5400rpm drives that can spin down when not in use, or drives that don't make loud head parking sounds the way current larger/enterprise drives do.

Now as for other options to dampen noise further, I tried the following.

Surrounding the case with noise dampening panels. This didn't work and resulted in heat buildup.
Putting the case inside a shoe cabinet, this made the noise echo.
Putting the case inside the shoe cabinet with noise dampening panels outside. This worked for noise but heat buildup was a problem, so it wasn't viable.
Giving up and moving the server into a closet. This was the only thing that really made it inaudible, allowed me to run the fans faster, and didn't cause heatup issues, though the closet does get warmer than the room around it.

[–] [email protected] 1 points 10 months ago (2 children)

Here's another idea for you and /u/ososoba

It cuts much of the mechanical noise of an HGST (fairly loud) HDD down. I think the case and this mounting solution work in conjunction, with the case absorbing much of the sound and this mount dampening the clunks.

[–] [email protected] 1 points 10 months ago (1 children)

This looks interesting, I have so many questions!

I assume it takes up two slots that way instead of one right?

Did you screw through the rubber stoppers? Or are you just using pressure from the knots to keep the HDD in place? I see screws resting on the stoppers but it doesn't look like they go through it.

How well has it been holding up? Looks like you've had it for over a year now. And would something like this work?

[–] [email protected] 1 points 10 months ago

Here's what it looks like above a normally-mounted HDD

It takes up about 2" of vertical space, compared to 1 1/3" (roughly) that is standard. I'd assume you would not be able to fill the case to full capacity using this method, but I'm not aware of the normal gap. Maybe? That said, you could reduce the bumper height way down. I just used big huge ones because I could.

The bumpers are NOT mounted to the HDD, just squeezed against it: slip knots pulled very tightly, compressing the screws against the rubber. So you could use shorter bumpers than these, or a small bit of any kind of vibration insulator, and you could probably get a similar reduction in bumping sounds.

It's somewhat secure, but the case rarely moves. I carry the case out to the garage for its bi-annual air compressor dusting with no trouble, but I don't tilt it much. This could be upgraded with zipe ties, or some sort of compressable metal clamp (If I did this I would rubber dip or Electric tape or something else to insulate the interior of the metal, just to be safe)

And would something like this work?

I think so. Those 7, 6, and 5 stoppers would be similar size to what I used here. And with those maybe you could do a T cut through it to make it a bit less "solid" and a bit more wobbly, if you wanted to, to reduce vibration.

[–] [email protected] 1 points 10 months ago

Interesting, which noises does the hgst make? Asking because the noises I had issues with didn't seem like vibrations of the drive itself or it hitting any metal. It was clicks from the drive head parking or something like that, which is a feature on newer, particularly larger hard drives from what I understand, I don't think thicker rubber would really have any impact on the sound itself tbh

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