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Should I go with Raid 0 or Single Volumes (SATA II)?

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February 12, 2014 11:47:58 PM

First time poster and first time NAS user...

Q: Will I see any real-life performance improvement from a 2TB RAID 0 NAS set up for my video streaming vs. just setting it up as two separate 1TB volumes (1 with my media and 1 with my backup docs & photos)?

Background: I just bought a 2-bay ReadyNAS with 2 1TB WD Red drives. I've already got it set up as a RAID 0 volume but I'm debating (myself) on whether or not the performance improvement is worth the increased risk. I have offsite backup so losing data isn't a real concern, but more the hassle of reloading all of the data back onto the drives if one fails and has to be replaced. Note: the write speed of the ReadyNAS 102 is very slow (several hours for every 50GB).

My primary use is 1) Media Streaming (mostly 1GB videos and occasionally some music) and 2) backup storage for documents and photos (i.e., limited access required). I want to make sure the NAS has no problem keeping up with the video streaming. I wouldn't think it would be a problem (especially since 99% of the time it will be just 1 stream), but just wanted to make sure.
February 12, 2014 11:53:40 PM

(R)AID0 is best for HD video streaming, however you are doubling the chances that you will loose ALL of the data on the array if one of the drives goes belly-up. Also AID0 makes the most sense if your network can support the read/write speeds of the array, otherwise there will be no real benefit in configuring an AID0 (Notice there's no R for redundant). If you have a gigabit lan connection or one of those newfangled high-bandwidth wifi routers, go with AID0, otherwise don't.
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February 13, 2014 12:57:48 AM

Benevolence said:
(R)AID0 is best for HD video streaming, however you are doubling the chances that you will loose ALL of the data on the array if one of the drives goes belly-up. Also AID0 makes the most sense if your network can support the read/write speeds of the array, otherwise there will be no real benefit in configuring an AID0 (Notice there's no R for redundant). If you have a gigabit lan connection or one of those newfangled high-bandwidth wifi routers, go with AID0, otherwise don't.


Thanks. Understand the risks and I have a gigabit LAN connection so fine there, but I guess just want confirmation that the difference between RAID0 and Single volume will really be noticeable to me or not.
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February 13, 2014 5:31:30 AM

Yes, you should notice a real-world difference in performance with HDDs in RAID-0.

It's with SSDs where you don't notice any real-world difference unless the drives in the RAID-0 array are 60GB or less.
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