cheap san was (E: [NTLUG:Discuss] File Size Limit)

Robert Citek rwcitek at alum.calberkeley.org
Sat Nov 22 12:49:51 CST 2003


On Saturday, November 22, 2003, at 11:41  AM, Alfred Dayton wrote:
> As you say, if the throughput proves adequate I can add a switch (or 
> not)

Not too long ago I created a script to measure how fast I can copy a 
file from one machine to another over GigE.  The script, raw data, and 
conclusions are available here:
   http://www.cwelug.org/cgi-bin/wiki.cgi?TimingScripts

For my setup, the write speed of the local disk was the rate-limiting 
step:
   2000MB/151s = 13 MB/s
using NFS made it worse:
   2000MB/198s = 10 MB/s

In other words, I was barely making use of the GigE.

Feel free to use and modify the script for your own needs.

Regards,
- Robert




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