BUILD My 8 disk build and PSU options

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J8K

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Hi all,
It is time for me to build a new freenas box. My current setup is a HP N54L with 16gb ram and 5 wd reds in a raidz2. I have been using it now for 4-5 years, no issues so far. :)

My new build: (already ordered)
Cpu: i3 6100
MB: Supermicro x11ssh-ln4f
Ram: 2x16gb crucial ecc udimm
Hdd: 3 more wd reds
Boot: mirrored usb sticks


My plan is to build a 8 disk raidz2.

Do you see anything wrong with this setup?

And to the final question...PSU?
I have read the guide for the sizing of power supplies.
I really like the EVGA G2 power supplies, have a 1000w already in another pc that Im thinking of using. (1 month old)
Is it a big overkill to use the 1000w in my build? Should i aim for something smaller?

I have a plan to add a m1015 and move my virtualized nfs storage to the freenas box sometime in the future, but not right now. It is 6 disks configured as striped mirrors. Would the 1000w be to small here? (8+6 disks)

I have three options as I see it:
1. Use my 1000w
2. Buy a ~650w psu (evga or seasonic) (and upgrade when/if needed)
3. Buy something 1000w++ to meet future expansion requirements.

Hopefully you guys can help me to decide. :)
 

Ericloewe

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Is it a big overkill to use the 1000w in my build? Should i aim for something smaller?
It can't really hurt and it'd be wasteful to get a smaller one just because.
Would the 1000w be to small here? (8+6 disks)
No, it would still have plenty of headroom.
 

jgreco

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18,680
Hi all,
It is time for me to build a new freenas box. My current setup is a HP N54L with 16gb ram and 5 wd reds in a raidz2. I have been using it now for 4-5 years, no issues so far. :)

My new build: (already ordered)
Cpu: i3 6100
MB: Supermicro x11ssh-ln4f
Ram: 2x16gb crucial ecc udimm
Hdd: 3 more wd reds
Boot: mirrored usb sticks


My plan is to build a 8 disk raidz2.

Do you see anything wrong with this setup?

And to the final question...PSU?
I have read the guide for the sizing of power supplies.
I really like the EVGA G2 power supplies, have a 1000w already in another pc that Im thinking of using. (1 month old)
Is it a big overkill to use the 1000w in my build? Should i aim for something smaller?

I have a plan to add a m1015 and move my virtualized nfs storage to the freenas box sometime in the future, but not right now. It is 6 disks configured as striped mirrors. Would the 1000w be to small here? (8+6 disks)

I have three options as I see it:
1. Use my 1000w
2. Buy a ~650w psu (evga or seasonic) (and upgrade when/if needed)
3. Buy something 1000w++ to meet future expansion requirements.

Hopefully you guys can help me to decide. :)

Generally speaking, 1's a reasonable choice, but if you do run into mysterious problems, try a different PSU. Some PSU's will be twitchy if they're not seeing sufficient load.

The 1000W PSU ought to be fine for 14 disks too.
 

Ericloewe

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Some PSU's will be twitchy if they're not seeing sufficient load.
I don't think that's been a problem ever since group-regulated designs fell out of fashion.
When PSU manufacturers stayed advertising "Haswell compatibility" (due to the new low power states), everyone just went "well duh, your PSU is a large switch mode regulated +12V source with a bunch of DC to DC converters shoved in for the minor rails".

if you do run into mysterious problems, try a different PSU.
Always good advice. PSUs are often overlooked, especially during troubleshooting.
 

CraigD

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I would look at the curve for you PSU most tank in efficiency below 20% load so if you are above 20% load fine

https://hardforum.com/proxy/CKbSwA7...5F2KkrP7GWwMmsP0m4AxR1Oac+xCUjFvcv1/image.png

image.png
 

jgreco

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It isn't clear that this is actually representative of actual loading, especially below 20%. The 80+ certification process could have been more useful if it gathered a few more data points, including down by 10%, and a few other intermediate steps.
 

Ericloewe

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It isn't clear that this is actually representative of actual loading, especially below 20%. The 80+ certification process could have been more useful if it gathered a few more data points, including down by 10%, and a few other intermediate steps.
80+ Titanium introduces requirements at 10%, and they're on the strict side, too.

Too bad older certifications don't...
 

jgreco

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80+ Titanium introduces requirements at 10%, and they're on the strict side, too.

Too bad older certifications don't...

That might mean more to me if there were reasonable units available. I know Seasonic's been talking about their new "prime" stuff, but it appears to be more smoke than power supply.
 

Ericloewe

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That might mean more to me if there were reasonable units available. I know Seasonic's been talking about their new "prime" stuff, but it appears to be more smoke than power supply.
Apparently, they have a shipping container on their way to Europe at the moment. No word on US release dates...

Other than that, nearly every Titanium unit is a monster on the order of a kilowatt.
 

Ericloewe

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Know anything about being a modern day pirate? :)
The logistics are horrible.

Besides container ships being a hard target to hit ( They are large, reasonably quick and don't really feel threatened by a small boat full of guys with AKs), you also have to get rid of all the stuff you don't want. For every container full of power supplies, there are about 2 containers full of sex toys and other crap you don't want; plus all the other containers with valuable goods. What do you do with those?
 

Ericloewe

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Throw them overboard, I would imagine. We'll have to remember to bring a mecha suit, those damn things are heavy.
You can't do that at sea, the ship needs ballast.
 

jgreco

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You can't do that at sea, the ship needs ballast.

Why would I care about the ship? It's not like I'm proposing to take it on a cruise! Just need to find the container with the titanium supplies, the rest is garbage.
 

danb35

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You can't do that at sea, the ship needs ballast.
You seem to have thought this through very carefully. I think we should be concerned by that...
 

jgreco

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You seem to have thought this through very carefully. I think we should be concerned by that...

Only if you're on the waiting list. Whaddathink happened to all the GTX 1080's?
 

Ericloewe

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You seem to have thought this through very carefully. I think we should be concerned by that...
Not unless you're involved in the shipping business.
 

J8K

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Generally speaking, 1's a reasonable choice, but if you do run into mysterious problems, try a different PSU. Some PSU's will be twitchy if they're not seeing sufficient load.

The 1000W PSU ought to be fine for 14 disks too.

This sounds good to me. I will start with the 1000w and see how it works out.
Thanks for the help.


ARRRR.....go pirates!
 
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