Booting from a secondary storage device in order to accumulate disk drive performance data
View Patent ↗A computer system is disclosed comprising a disk drive comprising a head stack assembly (HSA), the HSA comprising a spindle motor for rotating at least one disk, and at least one head actuated over the disk. The computer system further comprises a host coupled to the disk drive, wherein the host comprises a microprocessor operable to first boot the host by reading boot data from a secondary storage device. After first booting the host, the microprocessor commands the disk drive to accumulate performance data for the HSA, and after accumulating the performance data, the microprocessor second boots the host by reading boot data from the HSA.
1. A method of evaluating a head stack assembly (HSA) of a disk drive, the HSA comprising a spindle motor for rotating at least one disk and at least one head actuated over the disk, the method comprising:
first booting a host by reading boot data from a secondary storage device;
after first booting the host, commanding the disk drive to accumulate performance data for the HSA and accumulating performance data for the HSA uninterrupted by the host; and
after accumulating the performance data, second booting the host by reading boot data from the HSA.
2. The method as recited in claim 1 , wherein the performance data relates to a control system operable to actuate the head over the disk.
3. The method as recited in claim 2 , wherein the performance data comprises a position error signal (PES) for the head.
4. The method as recited in claim 2 , further comprising modifying the control system in response to the accumulated performance data.
5. The method as recited in claim 1 , wherein the performance data relates to a control system operable to control the spindle motor.
6. The method as recited in claim 5 , wherein the performance data comprises at least one of a position error signal (PES) and a fly height for the head.
7. The method as recited in claim 5 , further comprising modifying the control system in response to the accumulated performance data.
8. The method as recited in claim 1 , further comprising modifying the host in response to the performance data.
9. The method as recited in claim 8 , further comprising modifying a chassis of the host.
10. The method as recited in claim 8 , further comprising modifying a speaker of the host.
11. The method as recited in claim 8 , further comprising modifying a speaker driver of the host.
12. The method as recited in claim 1 , further comprising generating host speaker sound while accumulating the performance data.
13. The method as recited in claim 1 , further comprising actuating the head over a track on the disk while accumulating the performance data.
14. The method as recited in claim 1 , further comprising executing an internal procedure for the HSA while accumulating the performance data.
15. A computer system comprising:
a disk drive comprising a head stack assembly (HSA), the HSA comprising:
spindle motor for rotating at least one disk; and
at least one head actuated over the disk; and
a host coupled to the disk drive, the host comprising a microprocessor operable to:
first boot the host by reading boot data from a secondary storage device;
after first booting the host, command the disk drive to accumulate performance data for the HSA uninterrupted by the host; and
after accumulating the performance data, second boot the host by reading boot data from the HSA.
16. The computer system as recited in claim 15 , wherein the performance data relates to a control system operable to actuate the head over the disk.
17. The computer system as recited in claim 16 , wherein the performance data comprises a position error signal (PES) for the head.
18. The computer system as recited in claim 15 , wherein the performance data relates to a control system operable to control the spindle motor.
19. The computer system as recited in claim 18 , wherein the performance data comprises at least one of a position error signal (PES) and a fly height for the head.
20. The computer system as recited in claim 15 , wherein the microprocessor is further operable to generate speaker sound while the disk drive is accumulating the performance data.
21. The computer system as recited in claim 15 , wherein the microprocessor is further operable to command the disk drive to actuate the head over a track on the disk while accumulating the performance data.
22. The computer system as recited in claim 15 , wherein the microprocessor is further operable to command the disk drive to execute an internal procedure for the HSA while accumulating the performance data.