Python – writing to a file on a fileystem to test I/O

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This is very useful Python script that will allow you to test writing to a file on a filesytem. This can be used to verify that their are no I/O read or write failures during an extend or migration of a filesystem.


import time
testfile = "/dbbackup-01/testfile.txt"

for i in range(100):
    print i
    fo = open(testfile, "a")
    fo.write('test write while the filesystem is being modified\n')
    print fo.name