copy 150G over 100Mbit

Terry Lambert tlambert2 at
Mon Jun 2 09:00:06 PDT 2003

Damir Horvat wrote:
> I need to copy ~150Gbytes over switched 100Mbit network to new machine (in max
> 7-8 hours).

The best you can expect is ((150 * 8 / 100) * 1024) / 60 = ~3.4 hours.

That assumes that your transfer rate off/on the disks on each
end can keep up with 100Mbit... which they can't.

> I've tryed rsync and cp over NFS. Both came down roughly to 2Gig's per hour,
> which is unacceptable. The only option left (as I see it) is to try with
> cross-over cable.

Your disk I/O will be your limiting factor, not your network

-- Terry

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