Which statement best defines Spin Retry Count?

• A. Speed of rotation in RPM.
• B. Times spin used to spin down.
• C. Number of failed attempts to spin up the drive.
• D. Number of spin-ups after power on.

Answer: (C)

Spin Retry Count tracks how many times the drive has attempted to spin up but failed to reach operating speed. When a hard drive powers on, the spindle motor tries to accelerate to the required RPM. If the initial spin-up doesn’t succeed, the controller retries and each failed attempt increments this count. This metric helps indicate mechanical or power delivery problems that could prevent the drive from starting reliably. It’s not about how fast the drive runs once it’s spinning (RPM), nor about how many times it spins up after power on, but specifically the number of failed spin-up attempts. A rising value signals a potential startup failure or deteriorating drive health.