Hard Disk (HD) Interview Question:

Explain power consumption statistics of the hard disks?

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★ These days power consumption of electrical devices has become a prime importance as portability and performance greatly depends on a devices consumption.
★ Power consumption of a hard disk directly affects: Drive age, disk failure rates, temperatures etc.
★ Smaller drives consume less energy as compared to large drives. The disks consume maximum energy during starting up, also known as spin up.
★ Spin up and spin down is directly controlled by the SCSI controller on such drives.
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