Calculate actual disk IOPS consumed per logical write in RAID-5. Each write = 4 physical IOPS (read old data, read old parity, write new data, write new parity). Actual_IOPS = Logical_IOPS × 4.
Enter the values for the scenario you are assessing. Calculate actual disk IOPS consumed per logical write in RAID-5. Each write = 4 physical IOPS (read old data, read old parity, write new data, write new parity). Actual_IOPS = Logical_IOPS × 4. Use the raid-5 write penalty result to inform your calculation.