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FreeNAS Raid or on board Raid

post #1 of 14
Thread Starter 
Sorry for the double post

I cant find any good performance threads on this. I am planning to build a NAS for obviously backing up my files.. Movies/Games/Applications..etc

Im looking into buying these parts for my NAS and was wondering what the performance differences would be on these scenarios. Its kind of a lot to look at. If you guys/girls have any hardware or software to suggest, that would be great..

Case
Motherboard
CPU hopefully a used one for better price
Hard Drives
or
These
or
These
Is this PSU to much? If i get that psu, I will get the short cable kit also..

1. 5 x 2TB in raid 5 using FreeNAS and said motherboard.
vs
2. 5 x 2TB in raid 5 using perc 5/i along with WHS and said motherboard.
vs
3. 5 x 2TB in raid 5 using on board Raid with FreeNAS or WHS

*************************************************************

1. 5 x 2TB in raid 0 using FreeNAS and said motherboard.
vs
2. 5 x 2TB in raid 0 using perc 5/i along with WHS and said motherboard
vs
3. 5 x 2TB in raid 0 using on board Raid with FreeNAS or WHS
Edited by zamdam - 2/9/11 at 11:10am
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post #2 of 14
Onboard hardware RAID would be better than software alone... Perc 5/i would be better than all. RAID lvl 5 would be slower than 0, but there's parity so it is safer for your data. On a NAS, you don't need speed as much as the ability to know that your data is safe.

Another thing I would recommend in addition to thinking about RAID for your NAS is to get a dedicated NIC. Your network setup will have a lot to do with speed and performance than your hard drive configuration. thumb.gif
post #3 of 14
Thread Starter 
Quote:
Originally Posted by jacobroufa;12316521 
Onboard hardware RAID would be better than software alone... Perc 5/i would be better than all. RAID lvl 5 would be slower than 0, but there's parity so it is safer for your data. On a NAS, you don't need speed as much as the ability to know that your data is safe.

Another thing I would recommend in addition to thinking about RAID for your NAS is to get a dedicated NIC. Your network setup will have a lot to do with speed and performance than your hard drive configuration. thumb.gif

Thanks..

Yea, i know about Raid levels, but im mainly concerned with the hardware/software side of it that will be controlling the array(s). I have not decided if i want to go raid 0 or raid 5, I know that raid 0 will be faster than raid 5.
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post #4 of 14
Yep. Hardware is always faster and more stable, even if it's the onboard RAID.
post #5 of 14
Thread Starter 
So, what do you guys think about the AMD SB850 controller vs FreeNAS software raid as far as reliability and performance?

Thanks for your replys
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post #6 of 14
From what I read, many people have no problem using software raid on freenas. A modern dual-core should handle multiple drives and advanced arrays with ease. The misconception with software raid is on windows it would crap down the whole system when your CPU has to run your OS, plus a software raid. w/ freenas, all the CPU will be doing is handling the storage and an almost non-existent OS, and there should be more than enough head room for some services as well.

Perc cards will give you some amazing performance that will blow away software raid and onboard raid controllers. You could even go for raid 6, which will give further security over raid 5.

If you get 1 more drive, for a total of six, you could do a nested raid level of 50 or w/ the perc raid 60. It'll give you both the benefits of speed and security of raid 0 and raid 5 or w/ raid 6.

freenas supports raid 50, I'm pretty sure the AMD SB wouldn't and PERC cards should be able to do everything. If it were me, I'd not get the PERC card and buy a 6th hard drive for software RAID 50.
Edited by darksideleader - 2/8/11 at 8:42pm
post #7 of 14
Thread Starter 
Quote:
Originally Posted by darksideleader;12317636 
From what I read, many people have no problem using software raid on freenas. A modern dual-core should handle multiple drives and advanced arrays with ease. The misconception with software raid is on windows it would crap down the whole system when your CPU has to run your OS, plus a software raid. w/ freenas, all the CPU will be doing is handling the storage and an almost non-existent OS, and there should be more than enough head room for some services as well.

Perc cards will give you some amazing performance that will blow away software raid and onboard raid controllers. You could even go for raid 6, which will give further security over raid 5.

If you get 1 more drive, for a total of six, you could do a nested raid level of 50 or w/ the perc raid 60. It'll give you both the benefits of speed and security of raid 0 and raid 5 or w/ raid 6.

freenas supports raid 50, I'm pretty sure the AMD SB wouldn't and PERC cards should be able to do everything. If it were me, I'd not get the PERC card and buy a 6th hard drive for software RAID 50.

In my sig rig i have tried using my on board raid controller vs the software raid in windows 7. Raid 0 is faster in windows using the built-in software in windows.. Not much faster, but a little according to atto and crystal disk benches..
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post #8 of 14
Is a stand alone NAS (like a netgear NV+ or Ultra) out of the question?
It seems like it would offer a lot less of a headache.

I have an NV+ with 2TB drives and it's exactly what I needed for backups and media storage.
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post #9 of 14
Thread Starter 
I have almost 5 TB of storage in my sig rig and its getting full so, im gonna need more.
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post #10 of 14
Quote:
Originally Posted by zamdam;12319828 
I have almost 5 TB of storage in my sig rig and its getting full so, im gonna need more.

Most decent NAS solutions will support the new 3TB drives, so 12TB of raw storage isn't enough?
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