IP Library Granted Patent US 11,403,029
Granted Patent B2
US 11,403,029 · App. 17/085,282 · Granted Aug 2, 2022

System and method for managing cleaning policies of storage devices in storage device pools using self-monitored statistics and input/output statistics

Inventors: Chandrashekar Nelogal (Round Rock, TX); Rahul Deo Vishwakarma (Bangalore, IN); Parmeshwr Prasad (Bangalore, IN)
Assignee: Dell Products L.P.
G06F3/0653G06F3/061G06F3/0619G06F3/0644G06F3/0649G06F3/0659G06F3/0683
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Quick Facts
Patent No.
US 11,403,029
App. No.
17/085,282
Granted
Aug 2, 2022
Kind
B2
Abstract

A method for managing a plurality of storage devices includes obtaining, by a storage device cleaning manager, a set of self-monitored statistics, performing an initial concern analysis to generate an initial concern prediction for each of the plurality of storage devices in a storage system, wherein the set of self-monitored statistics are associated with the plurality of storage devices, updating a cleaning policy based on the initial concern prediction, obtaining input/output (I/O) statistics, after updating the cleaning policy based on the initial concern prediction, performing a secondary concern analysis using the I/O statistics to generate a secondary concern prediction for each of the plurality of storage devices, wherein the I/O statistics are associated with the plurality of storage devices, further updating the cleaning policy, and performing a cleaning of at least a portion of the plurality of storage devices based on the updated cleaning policy.

Claims (55)

1. A method for managing a plurality of storage devices, the method comprising:

obtaining, by a storage device cleaning manager, a set of self-monitored statistics;

performing an initial concern analysis using the set of self-monitored statistics to generate an initial concern prediction for each of the plurality of storage devices in a storage system, wherein the set of self-monitored statistics are associated with the plurality of storage devices;

updating a cleaning policy for a second plurality of storage devices based on the initial concern prediction,

wherein the cleaning policy specifies a schedule for cleaning data in the second plurality of storage devices, and

wherein the plurality of storage devices comprises the second plurality of storage devices;

obtaining input/output (I/O) statistics;

after updating the cleaning policy based on the initial concern prediction, performing a secondary concern analysis using the I/O statistics to generate a secondary concern prediction for each of the plurality of storage devices, wherein the I/O statistics are associated with the plurality of storage devices;

further updating the cleaning policy based on the secondary concern prediction to obtain an updated cleaning policy; and

performing a cleaning of the second plurality of storage devices based on the updated cleaning policy.

2. The method of claim 1 , further comprising:

sending a concern predictions diagnostics report to an administrative system.

3. The method of claim 1 , wherein the initial concern analysis comprises performing a classification analysis on the set of self-monitored statistics.

4. The method of claim 3 , wherein a portion of the set of self-monitored statistics is provided to the storage device cleaning manager by a storage device monitoring agent associated with a storage device pool of the storage device pools.

5. The method of claim 1 , wherein the plurality of the storage devices are grouped into storage device pools.

6. The method of claim 1 , wherein the set of self-monitored statistics comprise at least one of: power usage, number of hours in which a storage device in the plurality of storage devices is powered on, a number of times the storage device is powered on, and an average amount of data storage in the storage device over a period of time.

7. The method of claim 1 , wherein the I/O statistics comprise at least one of: a read rate at a specified period of time, a write rate at the specified period of time, a bit error rate at the specified period of time, and a latency spike in the read rate or write rate.

8. A non-transitory computer readable medium comprising computer readable program code, which when executed by a computer processor enables the computer processor to perform a method for managing a plurality of storage devices, the method comprising:

obtaining, by a storage device cleaning manager, a set of self-monitored statistics;

performing an initial concern analysis using the set of self-monitored statistics to generate an initial concern prediction for each of the plurality of storage devices in a storage system, wherein the set of self-monitored statistics are associated with the plurality of storage devices;

updating a cleaning policy for a second plurality of storage devices based on the initial concern prediction,

wherein the cleaning policy specifies a schedule for cleaning data in the second plurality of storage devices, and

wherein the plurality of storage devices comprises the second plurality of storage devices;

obtaining input/output (I/O) statistics;

after updating the cleaning policy based on the initial concern prediction, performing a secondary concern analysis using the I/O statistics to generate a secondary concern prediction for each of the plurality of storage devices, wherein the I/O statistics are associated with the plurality of storage devices;

further updating the cleaning policy based on the secondary concern prediction to obtain an updated cleaning policy; and

performing a cleaning of the second plurality of storage devices based on the updated cleaning policy.

9. The non-transitory computer readable medium of claim 8 , the method further comprising:

sending a concern predictions diagnostics report to an administrative system.

10. The non-transitory computer readable medium of claim 8 , wherein the initial concern analysis comprises performing a classification analysis on the set of self-monitored statistics.

11. The non-transitory computer readable medium of claim 8 , wherein the plurality of the storage devices are grouped into storage device pools.

12. The non-transitory computer readable medium of claim 11 , wherein a portion of the set of self-monitored statistics are provided to the storage device cleaning manager by a storage device monitoring agent associated with a storage device pool of the storage device pools.

13. The non-transitory computer readable medium of claim 8 , wherein the set of self-monitored statistics comprise at least one of: a power usage, a number of hours in which a storage device in the plurality of storage devices is powered on, a second number of times the storage device is powered on, and an average amount of data storage in the storage device over a period of time.

14. The non-transitory computer readable medium of claim 8 , wherein the I/O statistics comprise at least one of: a read rate at a specified period of time, a write rate at the specified period of time, a bit error rate at the specified period of time, and a latency spike in the read rate or write rate.

15. A system, comprising:

a processor; and

memory comprising instructions which, when executed by the processor, perform a method, the method comprising:

obtaining, by a storage device cleaning manager, a set of self-monitored statistics;

performing an initial concern analysis using the set of self-monitored statistics to generate an initial concern prediction for each of a plurality of storage devices in a storage system, wherein the set of self-monitored statistics are associated with the plurality of storage devices;

updating a cleaning policy for a second plurality of storage devices based on the initial concern prediction,

wherein the cleaning policy specifies a schedule for cleaning data in the second plurality of storage devices, and

wherein the plurality of storage devices comprises the second plurality of storage devices;

obtaining input/output (I/O) statistics;

after updating the cleaning policy based on the initial concern prediction, performing a secondary concern analysis using the I/O statistics to generate a secondary concern prediction for each of the plurality of storage devices,

wherein the I/O statistics are associated with the plurality of storage devices;

further updating the cleaning policy based on the secondary concern prediction to obtain an updated cleaning policy; and

performing a cleaning of the second plurality of storage devices based on the updated cleaning policy.

16. The system of claim 15 , the method further comprising:

sending a concern predictions diagnostics report to an administrative system.

17. The system of claim 15 , wherein the initial concern analysis comprises performing a classification analysis on the set of self-monitored statistics.

18. The system of claim 17 , wherein a portion of the set of self-monitored statistics are provided to the storage device cleaning manager by a storage device monitoring agent associated with a storage device pool of the storage device pools.

19. The system of claim 15 , wherein the plurality of the storage devices are grouped into storage device pools.

20. The system of claim 15 ,

wherein the set of self-monitored statistics comprise at least one of: a power usage, a number of hours in which a storage device in the plurality of storage devices is powered on, a second number of times the storage device is powered on, and an average amount of data storage in the storage device over a period of time, and

wherein the I/O statistics comprise at least one of: a read rate at a specified period of time, a write rate at the specified period of time, a bit error rate at the specified period of time, and a latency spike in the read rate or write rate.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (054475/0523) Recorded Jun 10, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
Reel/Frame 060332/0664 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (054475/0434) Recorded Jun 10, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
Reel/Frame 060332/0740 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (054475/0609) Recorded Jun 10, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
Reel/Frame 062021/0570 →
RELEASE OF SECURITY INTEREST AT REEL 054591 FRAME 0471 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 058001/0463 →
SECURITY INTEREST Recorded Nov 18, 2020
From: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 054475/0609 →
SECURITY INTEREST Recorded Nov 18, 2020
From: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 054475/0434 →
SECURITY INTEREST Recorded Nov 18, 2020
From: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 054475/0523 →
SECURITY AGREEMENT Recorded Nov 13, 2020
From: EMC IP HOLDING COMPANY LLC; DELL PRODUCTS L.P.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 054591/0471 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2020
From: NELOGAL, CHANDRASHEKAR; VISHWAKARMA, RAHUL DEO; PRASAD, PARMESHWR
To: DELL PRODUCTS L.P.
Reel/Frame 054244/0040 →