Server always crashes when transferring files

I was transferring lots of big files (1 file around 300mb in size) using wget 'auto/batch download' command (auto dl anything in the file one at a time), and the server frequently crashes in the middle of the transfer. This time the server 'crashed' after transferring 18 files and while transferring the 19th. It just crashed in the middle.

The servers is in the same network, and the transfer speed is about 10mb/sec.

This time I monitor it with 'top' and noticed something odd, the processor load hikes up suddenly to 20.00+'s after transferring several files, while the RAM is fine.

Below is the processor status:

load average: 19.37, 9.89, 4.04
98 processes: 97 sleeping, 1 running, 0 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 0.0% 0.0% 0.0% 0.0% 0.0% 200.0% 0.0%
cpu00 0.0% 0.0% 0.0% 0.0% 0.0% 100.0% 0.0%
cpu01 0.0% 0.0% 0.0% 0.0% 0.0% 100.0% 0.0%

The procs are Pentium 4 3GHZ HT. You can see there that the iowait is seriously high.

Is this normal? The server does have a long list of big files to get however it only download 1 file at a time at the speed of 10mb/sec. And The server in which this server download from is running fine.

Now I don't know much about hardware and this, so anyone have any idea? The server which this server get the files from isn't crashing at all, it running fine, while this server always crashes in the middle... Server always crashes when transferring files

 

 

 

 

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