gistfile1.sh

stratos@yoda:/tmp$ cd ~

stratos@yoda:~$ cd sandbox/

stratos@yoda:~/sandbox$ dd if=/dev/zero of=raid1 bs=10240 count=10240
10240+0 records in
10240+0 records out
104857600 bytes (105 MB) copied, 0.315455 s, 332 MB/s

stratos@yoda:~/sandbox$ cp raid1 raid2

stratos@yoda:~/sandbox$ cp raid1 raid3

stratos@yoda:~/sandbox$ ls -al
total 307216
drwxr-xr-x  2 stratos stratos      4096 2010-10-01 23:56 .
drwxr-xr-x 11 stratos stratos      4096 2010-10-01 23:55 ..
-rw-r--r--  1 stratos stratos 104857600 2010-10-01 23:56 raid1
-rw-r--r--  1 stratos stratos 104857600 2010-10-01 23:56 raid2
-rw-r--r--  1 stratos stratos 104857600 2010-10-01 23:56 raid3