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NAS access times/latency?

post #1 of 4
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Greetings, fellow shaved baboons of the internet!

Since my lifestyle pretty much forces me to be mobile nowadays, it's no longer a viable option to have a desktop computer that has enough room for hard drives. Since I'm using a laptop, there are two choices; several USB 3.0/Thunderbolt external HDDs, or a fast NAS. I would much prefer the NAS, because I wouldn't necessarily have to take it with me like the USB one, I could have it also reachable via FTP from elsewhere, and it would come with a layer of redundancy in the form of RAID 1.

Now my question is:

Are NAS access times and read speeds fast enough for say, video editing? Is it even possible to edit video or run programs from a local area network location, or assign a local area network location to act as a "normal" HDD via drive letters and Windows explorer? This would be very handy and definitely badass.
Edited by seepra - 6/23/13 at 5:14am
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post #2 of 4
If you have a Gigabit connection connected to a NAS that is maybe using NFS...it's quite doable. The imaging/video dept. at my Work uses a SAN/NAS for their videos and photo projects.

PS: Your avatar is making my soul uncomfortable.
    
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post #3 of 4
Quote:
Originally Posted by seepra View Post

Are NAS access times and read speeds fast enough for say, video editing? Is it even possible to edit video or run programs from a local area network location, or assign a local area network location to act as a "normal" HDD via drive letters and Windows explorer? This would be very handy and definitely badass.

I would say video editing across the Internet would be a no-go. Why? One big reason is lack of sufficient throughput due to both latency and whatever bandwidth you have. Latency directly affects throughput. I don't know what kind of Internet service you get from your ISP, but if it's anything like this you're not going to get very far (unless, maybe, you've got that sweet sounding 100/10 Mbit service from Sonera. The info from that wiki is three years old, but it's all I have to go on.

Then, there's the matter of NAS performance which is largely based on drive performance. As an example, here are some performance benchmarks for a 5-bay NAS using RAID-5. Those tests were done on a gigabit LAN, which should typically have latencies less than one millisecond. You would see nothing anywhere near that across the Internet.

All that being said, a NAS is a great thing to have anyway. You could store things there and pull them down remotely if needed --just probably not very fast. For remote access, I'd recommend using a VPN connection into your network not only for security, but for ease of mapping drives and whatnot. The price you pay with a VPN, however, is in slightly reduced throughput due to encapsulation overhead and processing.


EDIT
LOL. I just re-read your post and you did say local area network. I'd say video editing might be possible with good drives, and a gigabit LAN --even better with jumbo frame enabled end-to-end. Sorry for the confusion.
Edited by felladium - 6/23/13 at 6:10am
 
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post #4 of 4
Thread Starter 
apparently, getting a NAS with jumboframe and iSCSI support would deliver tolerable speeds (I'm thinking around 50MB/s would be okay), and allow me to use the NAS as a "regular" form of storage instead of making it function as a network drive. If I understood correctly, programs would also run off the iSCSI type of hard drive. That way my laptop could remain SSD-only, which would be optimal.
Edited by seepra - 6/23/13 at 8:09am
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