BUILD SM X10SL7 32TB build, comments?

[IanWorthington]

I think this is what I'm about to order. Not sure if 8GB RAM is sufficient but given the price of RAM at the moment...

http://camelcamelcamel.com/Kingston...R16E11/product/B008LMNXS0?active=price_amazon

... I thought I'd see how 8GB performed first.

SUPERMICRO MBD-X10SL7-F-O (flashed to IT mode)
Xeon E3-1225V3 + stock cooler
1x Kingston Technology ValueRAM 8GB DDR3 1600MHz PC3 (ECC)
Seasonic S12II 520 BRONZE, SS-520GB (single rail 12V@40A, 6 SATA connects+4 molex/sata converters)
5 x WD REDs, 6 x Seagate NAS (10 in raidz2 + 1 cold spare)
Fractal Design Define R4 (2 drives in 5.25 adapters)

Any thoughts?

 

[Sir.Robin]

8GB RAM is minimum for running ZFS. With 32TB pool you should definetly have more according to FreeNAS documentation.

Even though you haven't written it, i hope you are going with ECC RAM?

HDD cooling on the define cases aren't all that (others disagree) but the WD Red's run cool so i think it should go well anyhow.

Why do you go for the E3-1225?

 

[IanWorthington]

Thanks SR.

Aye, the docs say I should really have 32GB. I'll add more as I increase usage. Hopefully ram prices will have dropped a bit by then.

Yep, that's ECC, I'll clarify it.

The 1225 rather than the 1220 say? Partly because its slightly faster which should help samba performance, but mostly because its what I'm using in another system and I know I can remote into that with ipmi. Without the igp I don't know if that works on the 1220.

 

[cyberjock]

And you realize if the motherboard can't use the IGP you'll spend power keeping it powered on for no benefit? That means also more heat for you to have to remove, etc.

ECC RAM prices aren't changing much. Looking at the RAM I bought 7 months ago its gone down $10 for the 4 stick pack. So don't expect big drops.

 

[IanWorthington]

RAM prices

 

[JohnK]

Thanks SR.

Without the igp I don't know if that works on the 1220.

The x10sl7 has an onboard graphic chip. You do not need igp. As Cyberjock said, you are going to use pay for that power with no benefit. If you need more speed, rather go e3-1330.

 

[IanWorthington]

I /know/ the 1225 works, I'm not 100% about the 1220/1230. The difference in TDP between the two is 4W, negligible compared to the 10 HDDs I'll be spinning.

 

[JohnK]

I /know/ the 1225 works, I'm not 100% about the 1220/1230. The difference in TDP between the two is 4W, negligible compared to the 10 HDDs I'll be spinning.

It works. Apart from Sir Robin running it, you will find a lot written about it.
The thing is that the 4W is mostly wasted on a feature you can never use on the x10-sl7 board.

 

[IanWorthington]

1220 it is then, thanks.

 

[memhog]

Since we veered into the subject of "Wasted Power" ...

What are the thoughts (particularly around possible reliability or issues) about using 1.35v vs 1.5v memory?
My rough calculations is about 4w additional power at load (for 1.5v).

 

[indy]

Funny that someone comes up with the exact same build.
But I guess there really are not too many options when it comes to 10 drive builds.

@memhog
Looking at a spec sheet from Kingston it looks to me the difference is more like 0.2W per stick.
http://www.kingston.com/dataSheets/KVR16LE11_8I.pdf
However there could be other advantages to running lower voltage ram, like reliability?

 

[Sir.Robin]

1220 it is then, thanks.

Yeah i think that is a better choice. You don't need the igp since IPMI won't use it anyhow and the X10SL7 (and others) have onboard graphics.
On the X9 series, Supermicro documentation even recomended NOT using a xxx5 chip.

Reliability should not be any different using 1.35 or 1.5 mem sticks.

 

[Z300M]

Yeah i think that is a better choice. You don't need the igp since IPMI won't use it anyhow and the X10SL7 (and others) have onboard graphics.
On the X9 series, Supermicro documentation even recomended NOT using a xxx5 chip.

Reliability should not be any different using 1.35 or 1.5 mem sticks.

Any advantage in moving up to the E3-1230V3, not so much for the slight speed increase (3.3GHz vs. 3.1) but for the hyperthreading?

 

[Sir.Robin]

Depends on your usage. For me the 1220 is plenty fast and gives me room for additional vm's. :)


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[indy]

This might be a better comparison regarding 1.35 vs 1.5 V Ram:
http://www.kingston.com/datasheets/KVR16LE11_8.pdf
http://www.kingston.com/datasheets/KVR16E11_8.pdf
So about 1.1W per stick.
Not a lot compared to a whole system, but about 1/3 less heat per stick.

 

[JohnK]

I think you also want to look at:
http://www.kingston.com/dataSheets/KVR16LE11_8I.pdf

I notice that the 1.35V Ram is simarly priced at SuperBiiz, so I might consider it for my next kit.

 

[IanWorthington]

Any advantage in moving up to the E3-1230V3, not so much for the slight speed increase (3.3GHz vs. 3.1) but for the hyperthreading?

Strange you mention that.... The 1225 I bought a few months ago turned out to be the Japanese variant with 4c/8t.

i

 

[Sir.Robin]

Whaat.... Japanese variants?? :-|


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[Dusan]

Whaat.... Japanese variants?? :-|

Intel does strange things sometimes. They decided to disable the hyperthreading on E3-1125v3: "Intel will be disabling the hyper-threading technology capability available in Intel® Xeon® Processor
E3-1225 v3 in order to align the processor to the published specifications." (https://qdms.intel.com/dm/d.aspx/09585A06-A418-4623-8A2F-3185C4ACD8D8/FPCN112293-01.pdf)
It seems some of the early batches turned up in Japan: http://linustechtips.com/main/topic...ion-of-xeon-e3-1225-v3-is-available-in-japan/

 

[IanWorthington]

Some of those batches made it to the US as well.