IP Library Granted Patent US 11,275,529
Granted Patent B2
US 11,275,529 · App. 16/987,492 · Granted Mar 15, 2022

Maintenance management on backup storage systems

Inventors: Gururaj Kulkarni (Bangalore, IN); Priyank Tiwari (Bangalore, IN); Michal Jacek Drozd (Cracow, PL)
Assignee: EMC IP Holding Company LLC
G06F3/0659G06F3/065G06F3/0619G06F3/0683
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Quick Facts
Patent No.
US 11,275,529
App. No.
16/987,492
Granted
Mar 15, 2022
Kind
B2
Abstract

Maintenance management on backup storage systems. Specifically, the disclosed method and system derive backup storage system load from a collection of profiled load factoring features. The backup storage system load may subsequently drive whether maintenance operations may be deferred to projected non-peak load times or, alternatively, may be permitted to proceed.

Claims (87)

1. A method for maintenance management, comprising:

detecting a trigger for a first maintenance operation;

in response to detecting the trigger for the first maintenance operation:

profiling, for a first point-in-time, a plurality of load factoring features;

computing a first current load factor using the plurality of load factoring features for the first point-in-time;

making a first determination that the first current load factor at least meets a permissible load factor;

making a second determination that a number of deferments for the first maintenance operation exceeds a deferment threshold; and

performing, based on the first and second determinations, the first maintenance operation.

2. The method of claim 1 , wherein the first maintenance operation performs one selected from a group consisting of purging expired data, purging expired jobs, and compressing stored data.

3. The method of claim 1 , wherein the plurality of load factoring features comprises at least one application-type load factoring feature, at least one operating system (OS)-type load factoring feature, and at least one infrastructure-type load factoring feature.

4. The method of claim 1 , further comprising:

detecting a trigger for a second maintenance operation;

in response to detecting the trigger for the second maintenance operation:

profiling, for a second point-in-time, the plurality of load factoring features;

computing a second current load factor using the plurality of load factoring features for the second point-in-time;

making a third determination that the second current load factor is below the permissible load factor; and

performing, based on the third determination, the second maintenance operation.

5. The method of claim 1 , further comprising:

detecting a trigger for a second maintenance operation;

in response to detecting the trigger for the second maintenance operation:

profiling, for a second point-in-time, the plurality of load factoring features;

computing a second current load factor using the plurality of load factoring features for the second point-in-time;

making a third determination that the second current load factor at least meets the permissible load factor; and

deferring, based on the third determination, the second maintenance operation to a later point-in-time.

6. The method of claim 5 , wherein the later point-in-time comprises a non-peak load time when at least one selected from a group consisting of a data backup operation, a data cloning operation, and a data recovery operation, is not expected to be performed.

7. The method of claim 6 , further comprising:

prior to deferring the second maintenance operation:

predicting a plurality of non-peak load times based on a plurality of historical load factors and the second current load factor,

wherein the plurality of non-peak load times comprises the non-peak load time.

8. The method of claim 7 , further comprising:

prior to predicting the plurality of non-peak load times:

obtaining a second number of deferments for the second maintenance operation; and

making a fourth determination that the second number of deferments does not exceed the deferment threshold,

wherein deferring the second maintenance operation to the later point-in-time is further based on the fourth determination.

9. A non-transitory computer readable medium (CRM) comprising computer readable program code, which when executed by a computer processor, enables the computer processor to:

detect a trigger for a first maintenance operation;

in response to detecting the trigger for the first maintenance operation:

profile, for a first point-in-time, a plurality of load factoring features;

compute a first current load factor using the plurality of load factoring features for the first point-in-time;

make a first determination that the first current load factor at least meets a permissible load factor;

make a second determination that a number of deferments for the first maintenance operation exceeds a deferment threshold; and

perform, based on the first and second determinations, the first maintenance operation.

10. The non-transitory CRM of claim 9 , wherein the first maintenance operation performs one selected from a group consisting of purging expired data, purging expired jobs, and compressing stored data.

11. The non-transitory CRM of claim 9 , wherein the plurality of load factoring features comprises at least one application-type load factoring feature, at least one operating system (OS)-type load factoring feature, and at least one infrastructure-type load factoring feature.

12. The non-transitory CRM of claim 9 , comprising computer readable program code, which when executed by the computer processor, further enables the computer processor to:

detect a trigger for a second maintenance operation;

in response to detecting the trigger for the second maintenance operation:

profile, for a second point-in-time, the plurality of load factoring features;

compute a second current load factor using the plurality of load factoring features for the second point-in-time;

make a third determination that the second current load factor is below the permissible load factor; and

perform, based on the third determination, the second maintenance operation.

13. The non-transitory CRM of claim 9 , comprising computer readable program code, which when executed by the computer processor, further enables the computer processor to:

detect a trigger for a second maintenance operation;

in response to detecting the trigger for the second maintenance operation:

profile, for a second point-in-time, the plurality of load factoring features;

compute a second current load factor using the plurality of load factoring features for the second point-in-time;

make a third determination that the second current load factor at least meets the permissible load factor; and

defer, based on the third determination, the second maintenance operation to a later point-in-time.

14. The non-transitory CRM of claim 13 , wherein the later point-in-time comprises a non-peak load time when at least one selected from a group consisting of a data backup operation, a data cloning operation, and a data recovery operation, is not expected to be performed.

15. The non-transitory CRM of claim 14 , comprising computer readable program code, which when executed by the computer processor, further enables the computer processor to:

prior to deferring the second maintenance operation:

predict a plurality of non-peak load times based on a plurality of historical load factors and the second current load factor,

wherein the plurality of non-peak load times comprises the non-peak load time.

16. The non-transitory CRM of claim 15 , comprising computer readable program code, which when executed by the computer processor, further enables the computer processor to:

prior to predicting the plurality of non-peak load times:

obtain a second number of deferments for the second maintenance operation; and

make a fourth determination that the second number of deferments does not exceed the deferment threshold,

wherein deferring the second maintenance operation to the later point-in-time is further based on the fourth determination.

17. A backup storage system, comprising:

a storage array; and

a computer processor operatively connected to the storage array, and programmed to:

detect a trigger for a first maintenance operation;

in response to detecting the trigger for the first maintenance operation:

profile, for a first point-in-time, a plurality of load factoring features;

compute a first current load factor using the plurality of load factoring features for the first point-in-time;

make a first determination that the first current load factor at least meets a permissible load factor;

make a second determination that a number of deferments for the first maintenance operation exceeds a deferment threshold; and

perform, based on the first and second determinations, the first maintenance operation.

18. The backup storage system of claim 17 , wherein the first maintenance operation performs one selected from a group consisting of purging expired data, purging expired jobs, and compressing stored data.

19. The backup storage system of claim 17 , wherein the plurality of load factoring features comprises at least one application-type load factoring feature, at least one operating system (OS)-type load factoring feature, and at least one infrastructure-type load factoring feature.

20. The backup storage system of claim 17 , wherein the computer processor is further programmed to:

detect a trigger for a second maintenance operation;

in response to detecting the trigger for the second maintenance operation:

profile, for a second point-in-time, the plurality of load factoring features;

compute a second current load factor using the plurality of load factoring features for the second point-in-time;

make a third determination that the second current load factor at least meets the permissible load factor; and

defer, based on the third determination, the second maintenance operation to a later point-in-time.

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 Aug 10, 2020
From: TIWARI, PRIYANK; DROZD, MICHAEL JACEK; KULKARNI, GURURAJ
To: EMC IP HOLDING COMPANY LLC
Reel/Frame 053444/0740 →