OpenWrt Forum Archive

Topic: USB2 harddisk vs Ethernet disk.

The content of this topic has been archived on 27 Apr 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Hi,

I am creating a download router of my asus wl 500 gp.
Because the router is in my bedroom I hate a spinning disk because of the low but noticable noice.

I was wondering would a ethernet disk got the same performance of a usb2 disk for this purpose.
Or would sending packets over the ethernet create more cpu then when it is connected to usb?

Basicly the disk will receive data from ctorrent. Anc be used as swap.

USB2 (480Mbps) looks faster than 100Mbit, of course, but it may be that the unit can only write 100-200 Mb/s through its tiny USB chip.  Run a few write-tests with dd from /dev/random and see how long it takes to write a big chunk of data.  Then borrow a buddy's Ethernet drive and test the same thing.  I think that you'll only get a really good real-world answer from a good real-world test.  Remember that the asus unit is 100mbit only, but maybe a wired gbit dongle will give you 480 mbit, or close, if such a thing exists.

Please, if you do any testing, share with us the results?

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