硬碟越來越多，管理和節能是個問題，有先進用過MAID嗎？

In computing, a massive array of idle disks (more commonly known as a MAID) is a system using hundreds to thousands of hard drives for near-line data storage. MAID is designed for Write Once, Read Occasionally (WORO) applications. In a MAID each drive is only spun up on demand as needed to access the data stored on that drive. This is not unlike a very large JBOD but with power management