changes to io.py applied to script, tasks for fio added
diff --git a/tasks/io_task_write_2mb.cfg b/tasks/io_task_write_2mb.cfg
new file mode 100644
index 0000000..40c9bef
--- /dev/null
+++ b/tasks/io_task_write_2mb.cfg
@@ -0,0 +1,13 @@
+[writetest]
+blocksize=2m
+filename=file.bin
+rw=write
+direct=1
+buffered=0
+ioengine=libaio
+iodepth=1
+size=10Gb
+runtime=5
+timeout=5
+numjobs=1
+