Fill a Server

bob_smith_17280 at hotmail.com bob_smith_17280 at hotmail.com
Wed Dec 15 17:38:02 CET 2004


I think this is a silly task, but I have to do it. I have to fill a
file server (1 TB SATA RAID Array) with files. I wrote a Python script
to do this, but it's a bit slow... here it is:

import shutil
import os
import sys
import time

src = "G:"
des = "C:scratch"

os.chdir(src)
try:
for x in xrange(5000):
for root, dirs, files in os.walk(src):
for f in files:
shutil.copyfile(os.path.join(root, f),
"C:\scratch\%s%s" %(f,x))
print "Done!!!"

except Exception, e:
print e
time.sleep(15)
sys.exit()

The problem with this is that it only copies about 35 GB/hour. I would
like to copy at least 100 GB/hour... more if possible. I have tried to
copy from the IDE CD drive to the SATA array with the same results. I
understand the throughput on SATA to be roughly 60MB/sec which comes
out to 3.6 GB/min which should be 216 GB/hour. Can someone show me how
I might do this faster? Is shutil the problem?

Also, my first attempt at this did a recursive copy creating subdirs in
dirs as it copied. It would crash everytime it went 85 subdirs deep.
This is an NTFS filesystem. Would this limitation be in the filesystem
or Python?

Thanks
Bob Smith

"I once worked for a secret government agency in South Africa... among
other things, we developed and tested AIDS. I am now living in an
undisclosed location in North America. The guys who live with me never
let me drive the same route to work and they call me 'Bob Smith 17280'
as there were more before me." -- Bob Smith




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