New Hardware Build

[cookiesmonster]

Guys, i really need some founded advice.

I currently have the following parts

Motherboard SuperMicro X7-SLA
Memory 2Gb (max of board)
Controller Dell Perc 5/i
HD 8x 2Tb Hitachi

I would really like a stable, fast, low power consumption, redundant NAS. With redundant i mean that i would like to be notified when a disk goes offline.

Some people say i need ZFS so more memory. Other people say lose the controller and board and buy one with more memory and SATA ports.

Please advice, many thanks

[ChriZathens]

With only 2GB of RAM you should use zfskerneltune if you like to go the ZFS route (recommended).
With zfskerneltune I believe you will gain stability. Low power consumption is not always dependent on a low power CPU like the Atom one, because a fast CPU, like an i3 for example, may be more power hungry at its peak than the Atom, but is as energy saving as the Atom while on idle... And idle is the state of your CPU on an NAS, most of the time...
If you continue with the Atom, I believe you should not expect speed.
The controller is fine I believe
Just my 2c - let others post their opinion, too.

[chrisf4lc0n]

From my personal experience with the Atom you will not get anything more than 70mb/s over the gigabit network and that would run your Atom at max speed... I had the AMD E350 and that was what it peaked at. Simple change to Celeron G1610 maxed the Gigabit network out.
2GB will be fine to start with but with 16TB of HDD space you should really look at a bit more, ZFS rule of thumb says 1GB per 1TB, so ideally you would need 16GB.

If you want speed with all them drives you are planning to use, ditch the mobo you have and get something a bit more powerful and add more RAM.

[alexey123]

I have 2 boards with atom D525 and nm10 chipset. I use its as workstations, because I am totally dissatisfied with their.
Lan card is junk, need add normal network card
In second - it slow for 2-core CPU.

[ChriZathens]

While I disagree with chrisf4lc0n, regarding 1GB Ram per TB (this is if you need to use advanced features like dedup, if I am not mistaken), I totally agree with alexey about the Network cards in Atoms.
I personally use a D525 as a home seedbox. It is the only of my machines which is always on.

Faster than the one you are considering to use, as you can see, plus it has 4GB or RAM
Network speeds are awful.. iperf can never go past 450Mbits (real speed transfering from the atom to my NAS is never more than 30 MB/s)
I am really considering to change this motherboard and get another one with an i3 CPU. It will have tremendous increase in speed (local or network), plus power consumption increase will be minor.

[alexey123]

From when is the atom525 has 4 cores

http://ark.intel.com/products/49490

Slow speed is not problem for me. All 2 my Atom board and 3 tested board periodically lost network, only reboot PC/server help restore connection

1GB Ram per TB (this is if you need to use advanced features like dedup, if I am not mistaken)

Dedup need more then 5G per TB. In general, 1Gb per TB is true, but anybody use swap for resolve kernel panics?

[chrisf4lc0n]

While I disagree with chrisf4lc0n, regarding 1GB Ram per TB (this is if you need to use advanced features like dedup, if I am not mistaken)

... so ideally you would need 16GB.
The more the better

[ChriZathens]

From when is the atom525 has 4 cores

http://ark.intel.com/products/49490

My mistake... It does not have 4 cores - it has 2 cores and 4 threads (with hyperthreading I presume?)

[alexey123]

From when is the atom525 has 4 cores

http://ark.intel.com/products/49490

My mistake... It does not have 4 cores - it has 2 cores and 4 threads (with hyperthreading I presume?)

This is not YOUR mistake, this is Commercial trick swindlers from Intel.
CPU drivers on ALL systems (windows include ) says about 4 cores As result we have wrong info

[b0ssman]

the Atom successor bay-trail-d is a real quad core

http://www.supermicro.com/products/moth ... X10SBA.cfm

http://www.asrock.com/ipc/overview.asp?Model=IMB-150

[chrisf4lc0n]

the Atom successor bay-trail-d is a real quad core

http://www.supermicro.com/products/moth ... X10SBA.cfm

The problem is that SuperMicro mobos work out rather expensive. For that price it is possible to build a decent enough system around the Z68 or Z77 boards, with much more omph!