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shell script to create disk load

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# 1  
Old 04-06-2010
shell script to create disk load
friends , need a shell script to create a disk load. can any one pls guide me with how this can be implemented. Pls provide the concept. from there i will try to design my script.
# 2  
Old 04-06-2010
What do you mean by "disk load"? Do you want to fill your disk up, then create a large file using dd. Do you want a high I/O load, then write a file and read it, all within an infinite loop.
# 3  
Old 04-06-2010
The second option. Create a high disk I/O and then write a file and read it.
# 4  
Old 04-06-2010
You could use dd to create a large file with random date:

Code:
dd if=/dev/random of=/tmp/largefile bs=1024 count=4000000

That should create you a 4gb file with totally random data from /dev/random.
This usually sufficiently hammers the disk with I/O
Last edited by cixelsyd; 04-06-2010 at 03:50 PM.. Reason: type in dd command
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