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Any affordable cases that can hold 14 HDDs and 3 SSDs? (lemmy.world)

submitted 1 year ago by Majawat@lemmy.world to c/datahoarder@lemmy.ml

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My unRAID server has 12 data drives, 2 parity drives, and 3 SSD cache pools. Plus dual Xeons on a SuperMicro ATX board.

I currently have the Deep Silence 5 case by Nanoxia. But things are cramped. I've filled all the standard drive bays, plus put in a 4-bay 5.25 enclosure. But I still have one of the SSDs just floating around.

What would a better case to put all this stuff in?

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[–] tomten@lemmy.world 1 points 1 year ago (1 children)

I have a 12 drive setup in a define 7 (not xl) and it's working fine. As long as I keep the filters decently clean from dust the temps are fine.

[–] thejevans@lemmy.ml 1 points 1 year ago (1 children)

Can you say what those temps are?

[–] tomten@lemmy.world 1 points 1 year ago (1 children)

Around 40C

[–] thejevans@lemmy.ml 1 points 1 year ago

I'm putting this here because I couldn't find a good summary anywhere else on the Internet:

There hasn't been much work on this recently, but a summary of the scholarly work in this field can be found between these sources:

Failure trends in a large disk drive population (2007)
- Findings: annual failure rates seem to not depend on temperature at all between about 30°C and 45°C, with failure rates increasing both above and below that temperature range.
Datacenter Scale Evaluation of the Impact of Temperature on Hard Disk Drive Failures (2013)
- Findings: annual failure rates seem to scale linearly with average drive temperature, roughly doubling from 5% at 32°C to 10% at 43°C. Variation in drive temperature seems to have a small, but negligible, negative effect.
Hard Drive Temperature—Does It Matter? (2014)
- Findings: Temperature seems to have no effect on annual failure rates, but average temperatures of drives in study were between 21°C and 31°C, so their conclusions are not that helpful.

The 2013 paper unfortunately is stuck behind a paywall, but message me if you would like to read it.

My suggestion given the work in the field would be to keep temperatures around 30°C if you can because at higher temperatures, you could be reducing the lifespan of your drives.