Method and system for hard disk drive throughput optimization using position error signaling
View Patent ↗Systems and methods are provided for throughput optimization of a hard disk drive (HDD) using position error signaling (PES) that includes determining a PES for a HDD mounted in a chassis based on a dynamic disturbance. The method also includes calculating a critical parameter of the PES. The method further includes indicating a mechanical design modification of the HDD or the chassis if the critical parameter of the PES exceeds a pre-defined threshold.
1. A method for throughput optimization of a hard disk drive (HDD) comprising:
determining a position error signaling (PES) for a HDD mounted in a chassis based on a dynamic disturbance;
calculating a critical parameter of the PES;
determining a performance parameter for the HDD; and
indicating a first mechanical design modification of the HDD or the chassis if the critical parameter of the PES exceeds a pre-defined threshold or if the performance parameter for the HDD fails to meet a pre-defined tolerance.
2. The method of claim 1 , wherein the PES is a percent track offset.
3. The method of claim 1 , wherein the critical parameter is a mean of the PES.
4. The method of claim 1 , wherein the dynamic disturbance is from a fan associated with the chassis.
5. The method of claim 1 , further comprising:
correlating the PES to throughput of the HDD; and
indicating a second mechanical design modification of the HDD or the chassis based on the correlation between the PES and the throughput of the HDD.
6. The method of claim 1 , further comprising:
correlating the PES to dynamics of a fan associated with the chassis; and
indicating a second mechanical design modification of the HDD, the fan, or the chassis based on the correlation between the PES and the dynamics of the fan.
7. The method of claim 1 , further comprising:
identifying a location of the HDD in the chassis; and
determining whether the dynamic disturbance at the location of the HDD in the chassis is higher than another dynamic disturbance at another location in the chassis.
8. The method of claim 1 , further comprising:
determining acceleration data for the HDD based on an on-board acceleration sensor; and
correlating the PES to the acceleration data to detect another dynamic disturbance prior to the another dynamic disturbance causing another PES.
9. The method of claim 8 , further comprising managing a rotational vibration or a linear vibration of the HDD in response to detecting the subsequent dynamic disturbance to reduce the subsequent PES.
10. A hard disk drive (HDD) comprising:
a processor configured to:
determine a PES for the HDD mounted in a chassis based on a dynamic disturbance;
calculate a critical parameter of the PES;
determine a performance parameter for the HDD; and
indicate a first mechanical design modification of the HDD or the chassis if the critical parameter of the PES exceeds a pre-defined threshold or if the performance parameter for the HDD fails to meet a pre-defined tolerance.
11. The HDD of claim 10 , wherein the PES is a percent track offset.
12. The HDD of claim 10 , wherein the critical parameter is a mean of the PES.
13. The HDD of claim 10 , wherein the dynamic disturbance is from a fan associated with the chassis.
14. The HDD of claim 10 , wherein the processor is further configured to:
correlate the PES to throughput of the HDD; and
indicate a second mechanical design modification of the HDD or the chassis based on the correlation between the PES and the throughput of the HDD.
15. The HDD of claim 10 , wherein the processor is further configured to:
determine acceleration data for the HDD based on an on-board acceleration sensor; and
correlate the PES to the acceleration data to detect another dynamic disturbance prior to the another dynamic disturbance causing another PES.
16. An information handling system comprising:
a processor;
a hard disk drive (HDD) communicatively coupled to the processor; and
a computer-readable medium communicatively coupled to the processor and having stored thereon instructions configured to, when executed by the processor:
determine a PES for a HDD mounted in a chassis based on a dynamic disturbance;
calculate a critical parameter of the PES;
determine a performance parameter for the HDD; and
indicate a first mechanical design modification of the HDD or the chassis if the critical parameter of the PES exceeds a pre-defined threshold or if the performance parameter for the HDD fails to meet a pre-defined tolerance.
17. The system of claim 16 , wherein the critical parameter is a mean of the PES.
18. The system of claim 16 , wherein the dynamic disturbance is from a fan associated with the chassis.
19. The system of claim 16 , wherein the instructions are further configured to:
correlate the PES to throughput of the HDD; and
indicate a second mechanical design modification of the HDD or the chassis based on the correlation between the PES and the throughput of the HDD.
20. The system of claim 16 , wherein the instructions are further configured to:
correlate the PES to dynamics of a fan associated with the chassis; and
indicate a second mechanical design modification of the HDD, the fan, or the chassis based on the correlation between the PES and the fan dynamics.
21. The system of claim 16 , wherein the instructions are further configured to:
determine acceleration data for the HDD based on an on-board acceleration sensor; and
correlate the PES to the acceleration data to detect another dynamic disturbance prior to the another dynamic disturbance causing another PES.