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What components for a fast NAS

Tags:
  • NAS / RAID
  • Storage
  • Hard Drives
  • Components
Last response: in Storage
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January 7, 2014 4:18:15 PM

I want something like this
http://www.youtube.com/watch?v=ycbq_gTqT5M

What should i get?
around 1000$ budget, not including storage.

How much slower will a single harddrive be compared to possibly raid5/6 raid z2/3 ?
(Thinking of using flexraid, because i want to be able to plug out harddrives and stick them into other computers, however if the transfer rate is fast enough i could just transfer the data from the server harddrive to an external right?)

More about : components fast nas

a c 971 G Storage
January 7, 2014 6:04:26 PM

A single hard drive will peak at 150-190MB/s sequential reads and as slow as about 2MB/s in random read/writes under high queue depth. These specs can vary widely based on the specific drive in question.

As for the network performance The Intel card does very well but it cannot exceed how fast its feed. Ie - a fast storage subsystem helps alot. Whats not blatantly obvious in the video you linked is that they are transferring the same file all 4 times so the server is really only doing 1 read from the HDD's and the other 3 pcs are being feed the file from the servers cache. Had they read 4 seperate files they would not have been able to saturate the network, the drives would have had to slow down to reposition the heads for the various reads.

A 1k buget, what do you already have?
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January 7, 2014 6:12:18 PM

popatim said:
A single hard drive will peak at 150-190MB/s sequential reads and as slow as about 2MB/s in random read/writes under high queue depth. These specs can vary widely based on the specific drive in question.

As for the network performance The Intel card does very well but it cannot exceed how fast its feed. Ie - a fast storage subsystem helps alot. Whats not blatantly obvious in the video you linked is that they are transferring the same file all 4 times so the server is really only doing 1 read from the HDD's and the other 3 pcs are being feed the file from the servers cache. Had they read 4 seperate files they would not have been able to saturate the network, the drives would have had to slow down to reposition the heads for the various reads.

A 1k buget, what do you already have?


Couple harddrives (just spare ones, not the ones i'd ideally use)
a 650 gold seasonic which i'm unsure if it'll work because of all this fancy ampere stuff i'm hearing about.

and i do have a spare network card, but it was 30 $ like 2 years ago. single port pci 2? (???) it was realtek. 10/100/1000

What's a "fast storage subsytem"?

I also have an old dell optiplex 745 minitower. It's falling apart though, i think the only good thing about it left is the cpu and case. like the original network port for it died on me
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