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Power Supply for 10+ HDD's, do I need anything special?

Blucyrik

I'm planning on building a new NAS, which will contain ten or more 1-2 TB hard drives moving into the future. To make sure I don't "max anything out" from connecting so many hard drives, do I need anything special?

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I'm planning on building a new NAS, which will contain ten or more 1-2 TB hard drives moving into the future. To make sure I don't "max anything out" from connecting so many hard drives, do I need anything special?

 

A regular quality PSU will work with it, if your board supports it you could setup staggered startup so not all drives are drawing full power to start spinning.  

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I'm planning on building a new NAS, which will contain ten or more 1-2 TB hard drives moving into the future. To make sure I don't "max anything out" from connecting so many hard drives, do I need anything special?

Well desktop hard drives should probably allot for 30W each. So I'd assume that, say you have an i5 and GTX 780, maybe a 750W PSU would be good.

 

Totally pulled those numbers out of nowhere btw. Would not recommend using my opinion as the be-all end-all.

|PSU Tier List /80 Plus Efficiency| PSU stuff if you need it. 

My system: PCPartPicker || For Corsair support tag @Corsair Josephor @Corsair Nick || My 5MT Legacy GT Wagon ||

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Twill be fine - I had 8-12 3.5" drives pulling from a 450w without issue and without staggered startup.

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Well desktop hard drives should probably allot for 30W each. So I'd assume that, say you have an i5 and GTX 780, maybe a 750W PSU would be good.

Totally pulled those numbers out of nowhere btw. Would not recommend using my opinion as the be-all end-all.

Hdd's can use ~30w when spinning up but use under 10w in normal usage. 750w is overkill. The system isn't going to be at load when booting up. A decent 550w would be more than enough already.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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Hdd's can use ~30w when spinning up but use under 10w in normal usage. 750w is overkill. The system isn't going to be at load when booting up. A decent 550w would be more than enough already.

Well I was guessing that he might be doing some sort of RAID thing where 10 all moved at the same time so eh.

|PSU Tier List /80 Plus Efficiency| PSU stuff if you need it. 

My system: PCPartPicker || For Corsair support tag @Corsair Josephor @Corsair Nick || My 5MT Legacy GT Wagon ||

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Well I was guessing that he might be doing some sort of RAID thing where 10 all moved at the same time so eh.

That's pretty much what I'm planning to do :)

Want to build yourself a NAS? Check here!

 

 

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Well I was guessing that he might be doing some sort of RAID thing where 10 all moved at the same time so eh.

That would still be fine. ~30w is just for the initial spin-up. At under 10w, 10 hdd's at load would still be under 100w. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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That would still be fine. ~30w is just for the initial spin-up. At under 10w, 10 hdd's at load would still be under 100w. 

I guess, but say he needs to transfer a 100GB file from a flash drive to those drives. Would writing to a RAID array with all 10 of those drives spin them at the max (say 7200 RPM) for the few minutes/hours it would take to transfer that stuff?

|PSU Tier List /80 Plus Efficiency| PSU stuff if you need it. 

My system: PCPartPicker || For Corsair support tag @Corsair Josephor @Corsair Nick || My 5MT Legacy GT Wagon ||

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Well OK, so 10*30=300.

What are the other system specs?

I'm still looking into some older Xeons and such but this system will purely be a NAS, most likely with Windows Server thrown on it, that's all I can really say atm.

Want to build yourself a NAS? Check here!

 

 

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I'm still looking into some older Xeons and such but this system will purely be a NAS, most likely with Windows Server thrown on it, that's all I can really say atm.

Oh yeah, so no need for a GPU. 500W is plenty. Probably even excessive really.

|PSU Tier List /80 Plus Efficiency| PSU stuff if you need it. 

My system: PCPartPicker || For Corsair support tag @Corsair Josephor @Corsair Nick || My 5MT Legacy GT Wagon ||

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Oh yeah, so no need for a GPU. 500W is plenty. Probably even excessive really.

Thanks for the help guys :)

Want to build yourself a NAS? Check here!

 

 

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Well desktop hard drives should probably allot for 30W each. So I'd assume that, say you have an i5 and GTX 780, maybe a 750W PSU would be good.

 

Totally pulled those numbers out of nowhere btw. Would not recommend using my opinion as the be-all end-all.

my home server with 3 hard drives doesnt go past 100 watts when all of them are crunching. (with the i3 maxed out as well, which is by itself almost 100 watts at load)

EDIT: i cannot measure the load upon spinup because my wattmeter is a cheap turd.

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I guess, but say he needs to transfer a 100GB file from a flash drive to those drives. Would writing to a RAID array with all 10 of those drives spin them at the max (say 7200 RPM) for the few minutes/hours it would take to transfer that stuff?

Hdd's generally use under 10w at load. At idle, they use even less. ~30w is just for the initial spin-up.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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