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Scott Mueller's Upgrading and Repairing PCs Forum • View topic - NSLU2 performance
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 Post subject: NSLU2 performance
 Post Posted: Tue Jan 26, 2010 1:01 am 
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Hi Scott,

I have a NSLU2 up and running connected to my home network. I have a single hard drive connected to it - a SATA drive in an external USB2 enclosure formatted as EXT3.

I am currently in the process of backing up everything off of my main storage drive (2 x Seagate 1TB ES.2 in RAID 1) on my Quad core Windows 7 PC. Basically the throughput is extremely slow, it has been running for several days (so far) backing up 293GB of music and photos etc.

I understand the bottleneck in this setup is the 100Mbit ethernet port on the NSLU2 but theoretically that would permit 11.6MB/s (at least according to ), I am seeing speeds between 1 and 2 MB/s with the device when copying over this data.

Do you happen to know why the throughput would be this low? Is the processing power of the NSLU2 (266Mhz) degrading speeds significantly?

Thanks in advance for any info!

-Paul


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 Post subject: Re: NSLU2 performance
 Post Posted: Tue Jan 26, 2010 6:59 pm 
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 Post subject: Re: NSLU2 performance
 Post Posted: Wed Jan 27, 2010 12:59 am 
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Hi Scott,

thanks for the response. Here are the results of my test:

Write speed: 2 MBps
Read speed: 4.5 MBps

So my backup seems to be in the expected zone as far as performance is concerned.

Why are some of these NAS units so slow? is it to do with how fast or slow the controller inside them runs? what distinguishes a home made "leftover PC" NAS as far as speed goes?, CPU, memory?

Very interesting :)

-Paul


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 Post subject: Re: NSLU2 performance
 Post Posted: Wed Jan 27, 2010 10:20 am 
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 Post subject: Re: NSLU2 performance
 Post Posted: Wed Jan 27, 2010 1:07 pm 
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 Post subject: Re: NSLU2 performance
 Post Posted: Wed Jan 27, 2010 2:02 pm 
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